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@Article{PeirceCollected,
  Title                    = {{Collected Papers of Chales Sanders Peirce}},
  Author                   = {Peirce, C.S.},

  Crossref                 = {Fann1970a},
  HowPublished             = {cited in}
}

@InCollection{diSessa1995a,
  Title                    = {{The Many Faces of a Computational Medium: Teaching the Mathematics of Motion}},
  Author                   = {diSessa, A.},
  Booktitle                = {{Computers and Exploratory Learning}},
  Publisher                = {Springer},
  Year                     = {1995},
  Editor                   = {diSessa, A. and Hoyles, Celia and Noss, Richard and Edwards, Laurie D.},
  Pages                    = {337--359},

  File                     = {/home/huub/Documents/Research/main/Sources/diSessa1995a-The\_many\_faces\_of\_a\_computational\_medium-Teaching\_the\_mathematics\_of\_motion.pdf},
  Keywords                 = {ict; programming; motion domain; primary school; microworld}
}

@InCollection{diSessa1991c,
  Title                    = {{Local sciences: Viewing the design of human-computer systems as cognitive science}},
  Author                   = {diSessa, A.},
  Booktitle                = {{Designing interaction. Psychology at the human-computer interface}},
  Year                     = {1991},
  Editor                   = {Carroll, John M.},
  Pages                    = {162--202},

  File                     = {/home/huub/Documents/Research/main/Sources/diSessa1991c-Local\_sciences-Viewing\_the\_design\_of\_human-computer\_systems.pdf},
  Organization             = {Cambridge University Press}
}

@InCollection{diSessa2002a,
  Title                    = {{Students' criteria for representational adequacy}},
  Author                   = {diSessa, A.},
  Booktitle                = {{Symbolizing, Modeling and Tool Use in Mathematics Education}},
  Publisher                = {Kluwer Academic Publishers},
  Year                     = {2002},
  Editor                   = {Gravemeijer, K. and Lehrer, R. and van Oers, B. and Verschaffel, L.},
  Pages                    = {105--130},

  File                     = {/home/huub/Documents/Research/main/Sources/diSessa2002a-Why-conceptual\_ecology-is\_a\_good\_idea.pdf},
  Keywords                 = {conceptual change; p-prims}
}

@InCollection{diSessa2006a,
  Title                    = {{A history of conceptual change research}},
  Author                   = {diSessa, A.},
  Booktitle                = {{The Cambridge handbook of the learning sciences}},
  Publisher                = {Cambridge University Press},
  Year                     = {2006},
  Editor                   = {Sawyer, R. Keith},
  Pages                    = {265--281}
}

@Book{diSessa2001a,
  Title                    = {{Changing minds: Computers, learning, and literacy}},
  Author                   = {diSessa, A.},
  Publisher                = {The MIT Press},
  Year                     = {2001},

  Keywords                 = {ict; microworld; programming}
}

@InProceedings{diSessa1991a,
  Title                    = {{If we want to get ahead, we should get some theories}},
  Author                   = {diSessa, A.},
  Booktitle                = {{Proceedings of the Annual Meeting of the North American Chapter, International Group for the Psychology of Mathematics Education: Plenary papers}},
  Year                     = {1991},
  Pages                    = {220--239},

  File                     = {/home/huub/Documents/Research/main/Sources/diSessa1991a-If\_we\_want\_to\_get\_ahead.pdf},
  Keywords                 = {gap; theory},
  Url                      = {http://www.eric.ed.gov/PDFS/ED352274.pdf}
}

@Article{diSessa1988a,
  Title                    = {{Knowledge in pieces}},
  Author                   = {diSessa, A.},
  Journal                  = {Constructivism in the computer age},
  Year                     = {1988},
  Pages                    = {49--70},

  File                     = {/home/huub/Documents/Research/main/Sources/diSessa1988a-Knowledge\_in\_pieces.pdf},
  Keywords                 = {p-prims; microworld; ict; conceptual change},
  Url                      = {http://131.193.130.213/media//disessa\_a\_1988.pdf}
}

@Article{diSessa1986a,
  Title                    = {{Artificial worlds and real experience}},
  Author                   = {diSessa, A.},
  Journal                  = {Instructional science},
  Year                     = {1986},
  Number                   = {3},
  Pages                    = {207--227},
  Volume                   = {14},

  File                     = {/home/huub/Documents/Research/main/Sources/diSessa1986a-Artificial\_worlds\_and\_real\_experience.pdf},
  Keywords                 = {ict},
  Publisher                = {Springer}
}

@Article{diSessa1986b,
  Title                    = {{Boxer: a reconstructible computational medium}},
  Author                   = {diSessa, A. and Abelson, Harold},
  Journal                  = {Communications of the ACM},
  Year                     = {1986},

  Month                    = {September},
  Pages                    = {859--868},
  Volume                   = {29},

  Address                  = {New York, NY, USA},
  Doi                      = {10.1145/6592.6595},
  File                     = {/home/huub/Documents/Research/main/Sources/diSessa1986b-Boxer-A\_reconstructible\_computational\_medium.pdf},
  Issue                    = {9},
  Keywords                 = {ict; programming},
  Publisher                = {ACM},
  Url                      = {http://doi.acm.org/10.1145/6592.6595}
}

@Article{diSessa2004a,
  Title                    = {{Ontological innovation and the role of theory in design experiments}},
  Author                   = {diSessa, A. and Cobb, P.},
  Journal                  = {Journal of the Learning Sciences},
  Year                     = {2004},
  Number                   = {1},
  Pages                    = {77--103},
  Volume                   = {13},

  File                     = {/home/huub/Documents/Research/main/Sources/diSessa2004a-Ontological\_innovation\_and\_the\_role\_of\_theory\_in\_design\_experiments.pdf},
  Keywords                 = {design research},
  Publisher                = {Routledge}
}

@Article{diSessa1991b,
  Title                    = {{Inventing Graphing: Meta-Representational Expertise in Children}},
  Author                   = {diSessa, A. and Hammer, David and Sherin, Bruce and Kolpakowski, Tina},
  Journal                  = {Journal of Mathematical Behavior},
  Year                     = {1991},
  Number                   = {2},
  Pages                    = {117--60},
  Volume                   = {10},

  File                     = {/home/huub/Documents/Research/main/Sources/diSessa1991b-Inventing\_graphing-meta-representational\_expertise\_in\_children.pdf},
  Keywords                 = {representation; draw graph; mathematics; elementary school; ict; motion domain; change; graph}
}

@Article{diSessa2000a,
  Title                    = {{Meta-representation: an introduction}},
  Author                   = {diSessa, A. and Sherin, Bruce L.},
  Journal                  = {The Journal of Mathematical Behavior},
  Year                     = {2000},
  Number                   = {4},
  Pages                    = {385--398},
  Volume                   = {19},

  Doi                      = {10.1016/S0732-3123(01)00051-7},
  File                     = {/home/huub/Documents/Research/main/Sources/diSessa2000a-Meta\_representation\_an\_introduction.pdf},
  Keywords                 = {representation; meta-representational competence; higher education; science},
  Url                      = {http://www.sciencedirect.com/science/article/B6W5B-43GPWVS-1/2/1b610a1e89efc8f6d8c6c3853cf2eaf8}
}

@Article{Ozdemir2007a,
  Title                    = {{An Overview of Conceptual Change Theories}},
  Author                   = {{\"O}zdemir, G{\"o}khan and Clark, Douglas B.},
  Journal                  = {Eurasia Journal of Mathematics, Science \& Technology Education},
  Year                     = {2007},
  Number                   = {4},
  Pages                    = {351--361},
  Volume                   = {3},

  File                     = {/home/huub/Documents/Research/main/Sources/Ozdemir2007a-An\_Overview\_of\_conceptual\_change\_theories.pdf},
  Keywords                 = {conceptual change; theory; learning},
  Url                      = {http://www.ejmste.com/v3n4/EURASIA\_v3n4.pdf#page=106}
}

@InProceedings{Aberg1996a,
  Title                    = {{Studying primary school children's learning of graphics: some experiences using video recordings as data}},
  Author                   = {{\AA}berg-Bengtsson, Lisbeth},
  Booktitle                = {{NFPF-kongressen{\rq}96 "Pedagogikkog teknologi - nye utfordringer". H{\o}gskolen i Lillehammer, 7- 10 March 1996}},
  Year                     = {1996},

  File                     = {/home/huub/Documents/Research/main/Sources/Aberg1996a-Studying\_primary\_school\_childrens\_learning\_of\_graphics.pdf},
  Keywords                 = {primary education; graph; draw graph; interpret graph},
  Url                      = {http://www.ped.gu.se/projekt/KIKI/personer/pdffiles/nfpf96.pdf}
}

@InProceedings{Aberg1995a,
  Title                    = {{Primary school children's understanding of bar charts and line grpahs: A preliminary analysis}},
  Author                   = {{\AA}berg-Bengtsson, Lisbeth and Ottosson, Torgny},
  Booktitle                = {{6th EARLi conference, Nijmegen, the Netherlands August 26--31}},
  Year                     = {1995},

  File                     = {/home/huub/Documents/Research/main/Sources/Aberg1995a-Primary\_school\_childrens\_understanding\_of\_bar\_charts\_and\_line\_graphs-A\_preliminary\_analysis.pdf},
  Keywords                 = {primary education; graph; interpret graph; draw graph}
}

@Article{Abell2004a,
  Title                    = {{Narrative Explanation: An Alternative to Variable-Centered Explanation?}},
  Author                   = {Abell, Peter},
  Journal                  = {Annual Review of Sociology},
  Year                     = {2004},
  Pages                    = {287--310},
  Volume                   = {30},

  Localfile                = {/home/huub/to-research/Sources/Abell2004a-Narrative_explanation-an_alternative_to_variable-centered_explanation.pdf},
  Url                      = {http://www.jstor.org/stable/29737695}
}

@Article{Abrahamson2009a,
  Title                    = {{Embodied design: Constructing means for constructing meaning}},
  Author                   = {Abrahamson, Dor},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {2009},
  Number                   = {1},
  Pages                    = {27--47},
  Volume                   = {70},

  File                     = {/home/huub/Documents/Research/main/Sources/Abrahamson2009a-Embodied\_design-constructing\_means\_for\_constructing\_meaning.pdf},
  Publisher                = {Springer},
  Url                      = {http://ccl.northwestern.edu/papers/2009/AbrahamsonESM2009.pdf}
}

@Article{Abrahamson2014a,
  Title                    = {{Coordinating visualizations of polysemous action: values added for grounding proportion}},
  Author                   = {Abrahamson, Dor and Lee, RosaG. and Negrete, AndreaG. and Guti{\'e}rrez, Jos{\'e}F.},
  Journal                  = {ZDM},
  Year                     = {2014},
  Number                   = {1},
  Pages                    = {79--93},
  Volume                   = {46},

  Doi                      = {10.1007/s11858-013-0521-7},
  ISSN                     = {1863-9690},
  Language                 = {English},
  Localfile                = {/home/huub/Documents/Research/main/Sources/Abrahamson2014a-Coordinating_visualizations_of_polysemous_action.pdf},
  Publisher                = {Springer Berlin Heidelberg},
  Url                      = {http://dx.doi.org/10.1007/s11858-013-0521-7}
}

@InCollection{Ackermann1991a,
  Title                    = {{From decontextualized to situated knowledge: revisiting Piaget's water-level experiment}},
  Author                   = {Ackermann, Edith},
  Booktitle                = {{Constructionism}},
  Year                     = {1991},
  Editor                   = {Harel, Idit and Papert, Seymour},
  Pages                    = {269--294},

  File                     = {/home/huub/Documents/Research/main/Sources/Ackermann1991a-From\_decontextualized\_to\_situated\_knowledge.pdf}
}

@InProceedings{Ackermann2001a,
  Title                    = {{Piaget{\rq}s Constructivism, Papert{\rq}s Constructionism: What{\rq}s the difference?}},
  Author                   = {Ackermann, Edith},
  Booktitle                = {{Constructivism: uses and perspectives in education. Conference proceedings, Geneva, September 2001}},
  Year                     = {2001},

  File                     = {/home/huub/Documents/Research/main/Sources/Ackermann2001a-Piagets\_constructivism\_Paperts\_constructionism-Whats\_the\_difference.pdf},
  Keywords                 = {constructivism; constructionism; papert; piaget; situated cognition},
  Url                      = {http://learning.media.mit.edu/content/publications/EA.Piaget%20_%20Papert.pdf}
}

@Article{Aikenhead1996a,
  Title                    = {{Science Education: Border Crossing into the Subculture of Science}},
  Author                   = {Aikenhead, Glen S.},
  Journal                  = {Studies in Science Education},
  Year                     = {1996},
  Pages                    = {1--52},
  Volume                   = {27},

  File                     = {/home/huub/Documents/Research/main/Sources/Aikenhead1996a-Science\_Education-Border\_Crossing\_into\_the\_Subculture\_of\_Science.pdf},
  Keywords                 = {science; culture},
  Url                      = {http://www.usask.ca/education/people/aikenhead/sse\_border.pdf}
}

@Article{Ainley1995a,
  Title                    = {{Re-viewing graphing: Traditional and intuitive approaches}},
  Author                   = {Ainley, J.},
  Journal                  = {For the Learning of Mathematics},
  Year                     = {1995},
  Number                   = {2},
  Pages                    = {10--16},
  Volume                   = {15},

  File                     = {/home/huub/Documents/Research/main/Sources/Ainley1995a-Re-viewing\_graphing-Traditional\_and\_intuitive\_approaches.pdf}
}

@InCollection{Ainley2008a,
  Title                    = {{Students in a Digital Age: Implications of ICT for Teaching and Learning}},
  Author                   = {Ainley, J. and Enger, L. and Searle, D.},
  Booktitle                = {{International Handbook of Information Technology in Primary and Secondary Education}},
  Publisher                = {Springer US},
  Year                     = {2008},
  Editor                   = {Voogt, Joke and Knezek, Gerald},
  Pages                    = {63--80},
  Series                   = {{Springer International Handbooks of Education}},
  Volume                   = {20},

  Keywords                 = {ict},
  Url                      = {http://dx.doi.org/10.1007/978-0-387-73315-9_4}
}

@Article{Ainley2000a,
  Title                    = {{The construction of meanings for trend in active graphing}},
  Author                   = {Ainley, J. and Nardi, E. and Pratt, D.},
  Journal                  = {International Journal of Computers for Mathematical Learning},
  Year                     = {2000},
  Pages                    = {85--114},
  Volume                   = {5},

  File                     = {/home/huub/Documents/Research/main/Sources/Ainley2000a-The\_construction\_of\_meanings\_for\_trend\_in\_active\_graphing.pdf},
  Keywords                 = {ict; graph; draw graph; interpret graph},
  Publisher                = {Springer Netherlands},
  Url                      = {http://dx.doi.org/10.1023/A:1009854103737}
}

@Article{Ainley2001a,
  Title                    = {{Normalising: children's activity to construct meanings for trend}},
  Author                   = {Ainley, J. and Pratt, D. and Nardi, E.},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {2001},
  Number                   = {1},
  Pages                    = {131--146},
  Volume                   = {45},

  File                     = {/home/huub/Documents/Research/main/Sources/Ainley2001a-Normalising-Childrens\_activity\_to\_construct\_meanings\_for\_trend.pdf},
  Keywords                 = {graph; ict; situated cognition; primary education; table; interpret graph; draw graph},
  Publisher                = {Springer}
}

@InCollection{Ainsworth2008a,
  Title                    = {{How do animations influence learning}},
  Author                   = {Ainsworth, Shaaron},
  Booktitle                = {{Current perspectives on cognition, learning, and instruction: Recent innovations in educational technology that facilitate student learning}},
  Publisher                = {Information Age Publishing Charlotte, NC},
  Year                     = {2008},
  Editor                   = {Robinson, D. and Schraw, G.},
  Pages                    = {37--67},

  File                     = {/home/huub/Documents/Research/main/Sources/Ainsworth2008a-How\_do\_animations\_influence\_learning.pdf}
}

@Article{Ainsworth2006a,
  Title                    = {{DeFT: A conceptual framework for considering learning with multiple representations}},
  Author                   = {Ainsworth, Shaaron},
  Journal                  = {Learning and Instruction},
  Year                     = {2006},
  Number                   = {3},
  Pages                    = {183--198},
  Volume                   = {16},

  Doi                      = {10.1016/j.learninstruc.2006.03.001},
  File                     = {/home/huub/Documents/Research/main/Sources/Ainsworth2006a-DeFT-A\_conceptual\_framework\_for\_considering\_learning\_with\_multiple\_representations.pdf},
  Keywords                 = {Multiple representations},
  Url                      = {http://www.sciencedirect.com/science/article/pii/S0959475206000259}
}

@Article{Ainsworth1999a,
  Title                    = {{The functions of multiple representations}},
  Author                   = {Ainsworth, Shaaron},
  Journal                  = {Computers \& Education},
  Year                     = {1999},
  Number                   = {2-3},
  Pages                    = {131--152},
  Volume                   = {33},

  File                     = {/home/huub/Documents/Research/main/Sources/Ainsworth1999a-The\_functions\_of\_multiple\_representations.pdf},
  Keywords                 = {representation; multimedia; ict},
  Publisher                = {Elsevier}
}

@Article{Ainsworth2002a,
  Title                    = {{Examining the effects of different multiple representational systems in learning primary mathematics}},
  Author                   = {Ainsworth, Shaaron and Bibby, Peter and Wood, David},
  Journal                  = {The Journal of the Learning Sciences},
  Year                     = {2002},
  Number                   = {1},
  Pages                    = {25--61},
  Volume                   = {11},

  File                     = {/home/huub/Documents/Research/main/Sources/Ainsworth2002a-Examining\_the\_effects\_of\_different\_multiple\_representational\_systems\_in\_learning\_primary\_mathematics.pdf}
}

@Article{Ainsworth1997a,
  Title                    = {{Information technology and multiple representations: new opportunities -- new problems}},
  Author                   = {Ainsworth, Shaaron and Bibby, Peter and Wood, David},
  Journal                  = {Journal of Information Techology for Teacher Education},
  Year                     = {1997},
  Number                   = {1},
  Pages                    = {93--105},
  Volume                   = {6},

  Doi                      = {10.1080/14759399700200006},
  File                     = {/home/huub/Documents/Research/main/Sources/Ainsworth1997a-Information\_technology\_and\_multiple\_representations-new\_opportunities-new\_problems.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/14759399700200006}
}

@Article{Ainsworth2011a,
  Title                    = {{Drawing to learn in science}},
  Author                   = {Ainsworth, Shaaron and Prain, Vaughan and Tytler, Russell},
  Journal                  = {Science},
  Year                     = {2011},
  Number                   = {6046},
  Pages                    = {1096--1097},
  Volume                   = {333},

  File                     = {/home/huub/Documents/Research/main/Sources/Ainsworth2011a-Drawing\_to\_learn\_in\_science.pdf},
  Url                      = {http://podolskyr.people.cofc.edu/biol211/other/Ainsworth.pdf}
}

@Article{Ainsworth2004a,
  Title                    = {{Multiple forms of dynamic representation}},
  Author                   = {Ainsworth, Shaaron and VanLabeke, Nicolas},
  Journal                  = {Learning and Instruction},
  Year                     = {2004},
  Number                   = {3},
  Pages                    = {241--255},
  Volume                   = {14},

  Doi                      = {10.1016/j.learninstruc.2004.06.002},
  File                     = {/home/huub/Documents/Research/main/Sources/Ainsworth2004a-Multiple\_forms\_of\_dynamic\_representation.pdf},
  Url                      = {http://www.sciencedirect.com/science/article/pii/S0959475204000301}
}

@InBook{Akerson2011a,
  Title                    = {{Relationships Between Elementary Teachers{\rq} Conceptions of Scientific Modeling and the Nature of Science}},
  Author                   = {Akerson, Valarie L. and White, Orvil and Colak, Huseyin and Pongsanon, Khemmawaddee},
  Editor                   = {Khine, Myint Swe and Saleh, Issa M.},
  Pages                    = {221--237},
  Publisher                = {Springer Netherlands},
  Year                     = {2011},
  Series                   = {{Models and Modeling in Science Education}},
  Volume                   = {6},

  Booktitle                = {{Models and Modeling}},
  Doi                      = {10.1007/978-94-007-0449-7_10},
  ISBN                     = {978-94-007-0448-0},
  Keywords                 = {Nature of science; Elementary teachers; Inservice teachers; Professional development; Inquiry teaching; Inquiry science},
  Language                 = {English},
  Url                      = {http://dx.doi.org/10.1007/978-94-007-0449-7_10}
}

@InCollection{Akker1999a,
  Title                    = {{Principles and methods of development research}},
  Author                   = {van den Akker, Jan},
  Booktitle                = {{Design approaches and tools in education and training}},
  Publisher                = {Dordrecht: Kluwer Academic Publishers},
  Year                     = {1999},
  Editor                   = {van den Akker, Jan},
  Volume                   = {14},

  File                     = {/home/huub/Documents/Research/main/Sources/Akker1999a-Principles\_and\_methods\_of\_development\_research.pdf},
  Keywords                 = {design research}
}

@Book{Nieveen2013a,
  Title                    = {{Educational Design Research}},
  Author                   = {van den Akker, J. and Bannan, B. and Kelly, A. and Nieveen, N. and Plomp, T.},
  Editor                   = {Plomp, T. and Nieveen, N.},
  Publisher                = {SLO},
  Year                     = {2013},
  Volume                   = {A},

  File                     = {/home/huub/Documents/Research/main/Sources/Nieveen2013a-Educational\_design\_research.pdf},
  Url                      = {http://international.slo.nl/edr/}
}

@Article{Alberts2005a,
  Title                    = {{Ik liet de kinderen w{\'e}l iets leren}},
  Author                   = {Alberts, Gerard and Kaenders, Rainer},
  Journal                  = {Nieuw Archief voor de Wiskunde},
  Year                     = {2005},
  Number                   = {3},
  Pages                    = {247--251},
  Volume                   = {5/6},

  File                     = {/home/huub/Documents/Research/main/Sources/Alberts2005a-Ik\_liet\_de\_kinderen\_wel\_iets\_leren.pdf},
  Keywords                 = {history; van hiele; van hiele levels; developmental levels},
  Url                      = {http://www.math.leidenuniv.nl/~naw/serie5/deel06/sep2005/pdf/hiele.pdf}
}

@Article{Alexopoulou1996a,
  Title                    = {{Small-group discussion in physics: Peer interaction modes in pairs and fours}},
  Author                   = {Alexopoulou, Evinella and Driver, Rosalind},
  Journal                  = {Journal of Research in Science Teaching},
  Year                     = {1996},
  Number                   = {10},
  Pages                    = {1099--1114},
  Volume                   = {33},

  Doi                      = {10.1002/(SICI)1098-2736(199612)33:10<1099::AID-TEA4>3.0.CO;2-N},
  File                     = {/home/huub/Documents/Research/main/Sources/Alexopoulou1996a-Small-group\_discussion\_in\_physics-peer\_interaction\_modes\_in\_pairs\_and\_fours.pdf},
  ISSN                     = {1098-2736},
  Publisher                = {Wiley Subscription Services, Inc., A Wiley Company},
  Url                      = {http://dx.doi.org/10.1002/(SICI)1098-2736(199612)33:10<1099::AID-TEA4>3.0.CO; 2-N}
}

@Article{Amoah2003a,
  Title                    = {{Situated cognition and students' conceptual understanding of elementary calculus}},
  Author                   = {Amoah, Victor Kofi},
  Journal                  = {Proceedings of the British Society for Research into Learning Mathematics},
  Year                     = {2003},

  Month                    = {jun},
  Number                   = {2},
  Volume                   = {23},

  Booktitle                = {{Proceedings of the British Society for Research into Learning Mathematics}},
  File                     = {/home/huub/Documents/Research/main/Sources/Amoah2003a-Situated\_cognition\_and\_students\_conceptual\_understanding\_of\_elementary\_calculus.pdf},
  Keywords                 = {situated cognition; ict; calculus; higher education},
  Url                      = {http://www.bsrlm.org.uk/IPs/ip23-2/BSRLM-IP-23-2-1.pdf}
}

@Article{Andel1994a,
  Title                    = {{Anatomy of the unsought finding. serendipity: Orgin, history, domains, traditions, appearances, patterns and programmability}},
  Author                   = {Andel, Pek Van},
  Journal                  = {The British Journal for the Philosophy of Science},
  Year                     = {1994},
  Number                   = {2},
  Pages                    = {631--648},
  Volume                   = {45},

  Localfile                = {www.clips.ua.ac.be/sites/default/files/687687.pdf; /home/huub/Documents/Research/main/Sources/Andel1994a-Anatomy_of_the_unsought_finding-Serendipity.pdf},
  Publisher                = {Br Soc Philosophy Sci}
}

@Article{Anderson2012b,
  Title                    = {{Development of syntactic subject matter knowledge and pedagogical content knowledge for science by a generalist elementary teacher}},
  Author                   = {Anderson, Dayle and Clark, Megan},
  Journal                  = {Teachers and Teaching},
  Year                     = {2012},
  Number                   = {3},
  Pages                    = {315--330},
  Volume                   = {18},

  Doi                      = {10.1080/13540602.2012.629838},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/13540602.2012.629838},
  File                     = {/home/huub/Documents/Research/main/Sources/Anderson2012b-Development\_of\_syntactic\_subject\_matter\_knowledge\_and\_pedagogical\_content\_knowledge\_for\_science\_by\_a\_generalist\_elementary\_teacher.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/13540602.2012.629838}
}

@Article{Anderson2006a,
  Title                    = {{Analytic Autoethnography}},
  Author                   = {Anderson, L.},
  Journal                  = {Journal of Contemporary Ethnography},
  Year                     = {2006},
  Number                   = {4},
  Pages                    = {373--395},
  Volume                   = {35},

  Abstract                 = {Autoethnography has recently become a popular form of qualitative research. The current discourse on this genre of research refers almost exclusively to ``evocative autoethnography'' that draws upon postmodern sensibilities and whose advocates distance themselves from realist and analytic ethnographic traditions. The dominance of evocative autoethnography has obscured recognition of the compatibility of autoethnographic research with more traditional ethnographic practices. The author proposes the term analytic autoethnography to refer to research in which the researcher is (1) a full member in the research group or setting, (2) visible as such a member in published texts, and (3) committed to developing theoretical understandings of broader social phenomena. After briefly tracing the history of proto-autoethnographic research among realist ethnographers, the author proposes five key features of analytic autoethnography. He concludes with a consideration of the advantages and limitations of this genre of qualitative research.},
  Doi                      = {10.1177/0891241605280449},
  Eprint                   = {http://jce.sagepub.com/content/35/4/373.full.pdf+html},
  File                     = {/home/huub/Documents/Research/main/Sources/Anderson2006a-Anlaytic\_autoethnography.pdf},
  Url                      = {http://jce.sagepub.com/content/35/4/373.abstract}
}

@Article{Anderson2012a,
  Title                    = {{Design-Based Research A Decade of Progress in Education Research?}},
  Author                   = {Anderson, Terry and Shattuck, Julie},
  Journal                  = {Educational Researcher},
  Year                     = {2012},
  Number                   = {1},
  Pages                    = {16--25},
  Volume                   = {41},

  File                     = {/home/huub/Documents/Research/main/Sources/Anderson2012a-Design-based\_research-a-decade\_of\_progress\_in\_education\_research.pdf},
  Publisher                = {SAGE Publications}
}

@InProceedings{Anjewierden2008a,
  Title                    = {{An exploration of tool support for categorical coding}},
  Author                   = {Anjewierden, Anjo and Gijlers, Hannie},
  Booktitle                = {{Proceedings of the 8th international conference on International conference for the learning sciences-Volume 1}},
  Year                     = {2008},
  Organization             = {International Society of the Learning Sciences},
  Pages                    = {35--42},

  File                     = {/home/huub/Documents/Research/main/Sources/Anjewierden2008a-An\_exploration\_of\_tool\_support\_for\_categorical\_coding.pdf}
}

@InCollection{Appleton2006a,
  Title                    = {{Science pedagogical content knowledge and elementary school teachers}},
  Author                   = {Appleton, Ken},
  Booktitle                = {{Elementary science teacher education: International perspectives on contemporary issues and practice}},
  Publisher                = {Mahwah, NJ: Lawrence Erlbaum},
  Year                     = {2006},
  Editor                   = {Appleton, K},
  Pages                    = {31--54},

  File                     = {/home/huub/Documents/Research/main/Sources/Appleton2006a-Science\_PCK\_and\_elementary\_school\_teachers.pdf}
}

@Article{Appleton2002a,
  Title                    = {{Science Activities That Work: Perceptions of Primary School Teachers}},
  Author                   = {Appleton, Ken},
  Journal                  = {Research in Science Education},
  Year                     = {2002},
  Number                   = {3},
  Pages                    = {393--410},
  Volume                   = {32},

  Doi                      = {10.1023/A:1020878121184},
  File                     = {/home/huub/Documents/Research/main/Sources/Appleton2002a-Science\_activities\_that\_work-perceptions\_of\_primary\_school\_teachers.pdf},
  ISSN                     = {0157-244X},
  Keywords                 = {activity-based science; primary (or elementary) science; science teaching; teacher knowledge},
  Language                 = {English},
  Publisher                = {Kluwer Academic Publishers},
  Url                      = {http://dx.doi.org/10.1023/A%3A1020878121184}
}

@Article{Arcavi2008a,
  Title                    = {{Modelling with graphical representations}},
  Author                   = {Arcavi, Abraham},
  Journal                  = {For the Learning of Mathematics},
  Year                     = {2008},
  Number                   = {2},
  Pages                    = {2--10},
  Volume                   = {28},

  File                     = {/home/huub/Documents/Research/main/Sources/Arcavi2008a-Modelling\_with\_graphical\_representations.pdf}
}

@Article{Arcavi2005a,
  Title                    = {{Developing and using symbol sense in mathematics}},
  Author                   = {Arcavi, Abraham},
  Journal                  = {For the learning of mathematics},
  Year                     = {2005},
  Number                   = {2},
  Pages                    = {42--47},
  Volume                   = {25},

  File                     = {/home/huub/Documents/Research/main/Sources/Arcavi2005a-Developing\_and\_using\_symbol\_sense\_in\_mathematics.pdf},
  Url                      = {http://stwww.weizmann.ac.il/department40/publications/Arcavi/22%20Symbol%20Sense%202005.pdf}
}

@Article{Arcavi1994a,
  Title                    = {{Symbol sense: Informal sense-making in formal mathematics}},
  Author                   = {Arcavi, Abraham},
  Journal                  = {For the learning of Mathematics},
  Year                     = {1994},
  Number                   = {3},
  Pages                    = {24--35},
  Volume                   = {14},

  File                     = {/home/huub/Documents/Research/main/Sources/Arcavi1994a-Symbol\_sense-Informal\_sense-making\_in\_formal\_mathematics.pdf},
  Url                      = {http://stwww.weizmann.ac.il/department40/publications/Arcavi/8%20Symbol%20Sense%201994.pdf}
}

@Article{Arcavi2007a,
  Title                    = {{Learning to listen: from historical sources to classroom practice}},
  Author                   = {Arcavi, Abraham and Isoda, Masami},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {2007},
  Number                   = {2},
  Pages                    = {111--129},
  Volume                   = {66},

  File                     = {/home/huub/Documents/Research/main/Sources/Arcavi2007a-Learning\_to\_listen-from\_historical\_sources\_to\_classroom\_practice.pdf},
  Keywords                 = {mathematics},
  Publisher                = {Springer}
}

@Article{Artigue2002a,
  Title                    = {{Learning mathematics in a CAS environment: The genesis of a reflection about instrumentation and the dialectics between technical and conceptual work}},
  Author                   = {Artigue, Mich{\`e}le},
  Journal                  = {International Journal of Computers for Mathematical Learning},
  Year                     = {2002},
  Number                   = {3},
  Pages                    = {245--274},
  Volume                   = {7},

  File                     = {/home/huub/Documents/Research/main/Sources/Artigue2002a-Learning\_mathematics\_in\_a\_CAS\_environment.pdf},
  Keywords                 = {ict; mathematics; secondary education},
  Publisher                = {Springer}
}

@Article{Asiala1997a,
  Title                    = {{The development of students' graphical understanding of the derivative}},
  Author                   = {Asiala, Mark and Cottrill, Jim and Dubinsky, Ed and Schwingendorf, Keith E.},
  Journal                  = {The Journal of Mathematical Behavior},
  Year                     = {1997},
  Number                   = {4},
  Pages                    = {399--431},
  Volume                   = {16},

  Doi                      = {10.1016/S0732-3123(97)90015-8},
  File                     = {/home/huub/Documents/Research/main/Sources/Asiala1997a-The\_development\_of\_students\_graphical\_understanding\_of\_the\_derivative.pdf},
  ISSN                     = {0732-3123},
  Url                      = {http://www.sciencedirect.com/science/article/pii/S0732312397900158}
}

@Article{Babb2005a,
  Title                    = {{Mathematical Concepts and Proofs from Nicole Oresme}},
  Author                   = {Babb, Jeff},
  Journal                  = {Science \& Education},
  Year                     = {2005},
  Number                   = {3},
  Pages                    = {443--456},
  Volume                   = {14},

  File                     = {/home/huub/Documents/Research/main/Sources/Babb2005a-Mathematical\_concepts\_and\_proofs\_from\_Nicole\_Oresme.pdf},
  Keywords                 = {history; mathematics},
  Publisher                = {Springer}
}

@Article{Bagni2005a,
  Title                    = {{The historical roots of the limit notion: Cognitive development and the development of representation registers}},
  Author                   = {Bagni, Giorgio T.},
  Journal                  = {Canadian Journal of Science, Mathematics and Technology Education},
  Year                     = {2005},
  Number                   = {4},
  Pages                    = {453--468},
  Volume                   = {5},

  Doi                      = {10.1080/14926150509556675},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/14926150509556675},
  File                     = {/home/huub/Documents/Research/main/Sources/Bagni2005a-The\_historical\_roots\_of\_the\_limit\_notion.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/14926150509556675}
}

@Booklet{Bain1994a,
  Title                    = {{Understanding by learning or learning by understanding}},
  Author                   = {Bain, John},
  Year                     = {1994},

  Date                     = {1994-09-28},
  File                     = {/home/huub/Documents/Research/main/Sources/Bain1994a-Understanding\_by\_learning\_or\_learning\_by\_understanding.pdf}
}

@InCollection{Baker2003a,
  Title                    = {{Computer-mediated argumentative interactions for the co-elaboration of scientific notions}},
  Author                   = {Baker, Michael},
  Booktitle                = {{Arguing to learn: Confronting cognitions in computer-supported collaborative learning environments}},
  Year                     = {2003},
  Pages                    = {1--25},
  Volume                   = {1},

  File                     = {/home/huub/Documents/Research/main/Sources/Baker2003a-Computer\_mediated\_argumentative\_interactions\_for\_the\_co-elaboration\_of\_scientific\_notions.pdf}
}

@Article{Baker1994a,
  Title                    = {{A model for negotiation in teaching-learning dialogues}},
  Author                   = {Baker, Michael},
  Journal                  = {Journal of Artificial Intelligence and Education},
  Year                     = {1994},
  Pages                    = {199--254},
  Volume                   = {5},

  File                     = {/home/huub/Documents/Research/main/Sources/Baker1994a-A\_model\_for\_negotiation\_in\_teaching-learning\_dialogues.pdf}
}

@Article{Baker1997a,
  Title                    = {{Promoting reflective interactions in a CSCL environment}},
  Author                   = {Baker, Michael and Lund, K.},
  Journal                  = {Journal of computer assisted learning},
  Year                     = {1997},
  Number                   = {3},
  Pages                    = {175--193},
  Volume                   = {13},

  File                     = {/home/huub/Documents/Research/main/Sources/Baker1997a-Promoting\_reflective\_interactions\_in\_a\_CSCL\_environment.pdf}
}

@PhdThesis{Bakker2004a,
  Title                    = {{Design research in statistics education: on symbolizing and computer tools}},
  Author                   = {Bakker, Arthur},
  Year                     = {2004},

  File                     = {/home/huub/Documents/Research/main/Sources/Bakker2004a-Design\_research\_in\_statistics\_education.pdf},
  Institution              = {Universiteit Utrecht},
  Url                      = {http://igitur-archive.library.uu.nl/dissertations/2004-0513-153943/inhoud.htm}
}

@InCollection{Bakker2003b,
  Title                    = {{Learning to reason about distribution}},
  Author                   = {Bakker, A. and Gravemeijer, K.},
  Booktitle                = {{The challenge of developing statistical literacy, reasoning and thinking}},
  Publisher                = {Springer},
  Year                     = {2004},
  Editor                   = {Ben-Zvi, D. and Garfield, J.},
  Pages                    = {147--168},

  File                     = {/home/huub/Documents/Research/main/Sources/:/home/huub/Documents/Research/main/Sources/Bakker2003b-Learning\_to\_reason\_about\_distribution.pdf}
}

@Article{Bakker2005a,
  Title                    = {{Diagrammatic reasoning as the basis for developing concepts: a semiotic analysis of students'learning about statistical distribution}},
  Author                   = {Bakker, Arthur and Hoffmann, Michael H.G.},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {2005},
  Pages                    = {333--358},
  Volume                   = {60},

  File                     = {/home/huub/Documents/Research/main/Sources/Bakker2005a-Diagrammatic\_reasoning\_as\_the\_basis\_for\_developing\_concepts.pdf},
  Keywords                 = {representation; graph; interpret graph; secondary education; mathematics},
  Url                      = {http://www.jstor.org/stable/25047200}
}

@InCollection{Bakker2013a,
  Title                    = {{An introduction to design-based research with an example from statistics education}},
  Author                   = {Bakker, A. and {van Eerde}, H.},
  Booktitle                = {{Doing qualitative research: methodology and methods in mathematics education}},
  Year                     = {2013},
  Editor                   = {Bikner-Ahsbahs, A. and Knipping, C. and Presmeg, N.},

  File                     = {/home/huub/Documents/Research/main/Sources/Bakker2013a-An\_introduction\_to\_design-based\_research\_with\_and\_example\_from\_statistics\_education.pdf}
}

@Article{Ball1993a,
  Title                    = {{With an Eye on the Mathematical Horizon: Dilemmas of Teaching Elementary School Mathematics}},
  Author                   = {Ball, Deborah Loewenberg},
  Journal                  = {The Elementary School Journal},
  Year                     = {1993},
  Number                   = {4},
  Pages                    = {373--397},
  Volume                   = {93},

  File                     = {/home/huub/Documents/Research/main/Sources/Ball1993a-With\_and\_eye\_on\_the\_mathematical\_horizon-dilemmas\_of\_teaching\_elementary\_school\_mathematics.pdf}
}

@InProceedings{Ball2002a,
  Title                    = {{Toward a practice-based theory of mathematical knowledge for teaching}},
  Author                   = {Ball, Deborah Loewenberg and Bass, Hyman},
  Booktitle                = {{Proceedings of the Annual Meeting of the Canadian Mathematics Education Study Group. Kingston, Canada: CMESG}},
  Year                     = {2002},
  Pages                    = {3--14},

  File                     = {/home/huub/Documents/Research/main/Sources/Ball2002a-Towards\_a\_practice-based\_theory\_of\_mathematical\_knowledge\_for\_teaching.pdf}
}

@Article{Ball2005a,
  Title                    = {{Knowing mathematics for teaching: Who knows mathematics well enough to teach third grade, and how can we decide?}},
  Author                   = {Ball, Deborah Loewenberg and Hill, Heather C. and Bass, Hyman},
  Journal                  = {American Educator},
  Year                     = {2005},
  Pages                    = {15--17,20--22,43--46},

  File                     = {/home/huub/Documents/Research/main/Sources/Ball2005a-Knowing\_mathematics\_for\_teaching.pdf},
  Publisher                = {American Federation of Teachers}
}

@InCollection{Ball2001a,
  Title                    = {{Research on teaching mathematics: The unsolved problem of teachers{\rq} mathematical knowledge}},
  Author                   = {Ball, Deborah Loewenberg and Lubienski, Sarah Theule and Mewborn, Denise Spangler},
  Booktitle                = {{Handbook of research on teaching}},
  Year                     = {2001},
  Editor                   = {Richardson, V.},
  Pages                    = {433--456},
  Volume                   = {4},

  File                     = {/home/huub/Documents/Research/main/Sources/Ball2001a-Research\_on\_teaching\_mathematics-the\_unsolved\_problem\_of\_teachers\_mathematical\_knowledge.pdf}
}

@Article{Banchi2008a,
  Title                    = {{The Many Levels of Inquiry}},
  Author                   = {Banchi, Heather and Bell, Randy},
  Journal                  = {Science and Children},
  Year                     = {2008},
  Number                   = {2},
  Pages                    = {26--29},
  Volume                   = {46},

  Url                      = {http://www.miseagrant.umich.edu/lessons/files/2013/05/The-Many-Levels-of-Inquiry-NSTA-article.pdf}
}

@Article{Bannan2003a,
  Title                    = {{The role of design in research: The integrative learning design framework}},
  Author                   = {Bannan-Ritland, Brenda},
  Journal                  = {Educational Researcher},
  Year                     = {2003},
  Number                   = {1},
  Pages                    = {21--24},
  Volume                   = {32},

  File                     = {/home/huub/Documents/Research/main/Sources/Bannan2003a-The\_role\_of\_design\_in\_research-The\_integrative\_learning\_design\_framework.pdf},
  Keywords                 = {design research},
  Url                      = {http://www.coe.tamu.edu/~rcapraro/Articles/Design%20Experiments/Role%20of%20Design%20in%20RSCH%20The%20Integrative%20learning%20Design%20Framework.pdf}
}

@Article{Barab2001a,
  Title                    = {{Guest Editors' Introduction}},
  Author                   = {Barab, Sasha A. and Kirshner, David},
  Journal                  = {The Journal of the Learning Sciences},
  Year                     = {2001},
  Number                   = {1/2},
  Pages                    = {5--15},
  Volume                   = {10},

  File                     = {/home/huub/Documents/Research/main/Sources/Barab2001a-Rethinking\_methodology\_in\_the\_learning\_sciences.pdf},
  ISSN                     = {1050-8406},
  Keywords                 = {situated cognition; theory},
  Publisher                = {JSTOR}
}

@Article{Barab2003a,
  Title                    = {{Building sustainable science curriculum: Acknowledging and accommodating local adaptation}},
  Author                   = {Barab, Sasha A. and Luehmann, April L.},
  Journal                  = {Science Education},
  Year                     = {2003},
  Number                   = {4},
  Pages                    = {454--467},
  Volume                   = {87},

  File                     = {/home/huub/Documents/Research/main/Sources/Barab2003a-Building\_sustainable\_science\_curriculum-Acknowledging\_and\_accommodating\_local\_adaptation.pdf}
}

@Article{Barab2004a,
  Title                    = {{Design-based research: Putting a stake in the ground}},
  Author                   = {Barab, Sasha A. and Squire, Kurt},
  Journal                  = {Journal of the Learning Sciences},
  Year                     = {2004},
  Number                   = {1},
  Pages                    = {1--14},
  Volume                   = {13},

  File                     = {/home/huub/Documents/Research/main/Sources/Barab2004a-Design-based\_research-Putting\_a\_stake\_in\_the\_ground.pdf},
  Keywords                 = {design research},
  Publisher                = {Routledge},
  Url                      = {http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.128.5080&rep=rep1&type=pdf}
}

@Conference{Barber2009a,
  Title                    = {{Conscience and Critic: peer debriefing strategies in grounded theory research}},
  Author                   = {Barber, James P. and Walczak, Kelley K.},
  Booktitle                = {{Annual Meeting of the American Educational Research Association}},
  Year                     = {2009},

  File                     = {/home/huub/Documents/Research/main/Sources/Barber2009a-Conscience\_and\_critic-Peer\_debriefing\_strategies\_in\_grounded\_theory\_research.pdf},
  Url                      = {http://www.liberalarts.wabash.edu/storage/ConscienceCriticPeerDebriefing_%20BarberWalczak_AERA2009presentation.pdf}
}

@Other{Barnes1995a,
  Title                    = {{An inuitive approach to calculus}},
  Author                   = {Barnes, Mary},
  Comment                  = {Website accessed via the Internet Archive Wayback Machine: http://web.archive.org/web/20100119232046/http://hsc.csu.edu.au/maths/teacher\_resources/2384/prof\_reading/journals/barnes/M\_Barnes\_Nov\_95.html},
  File                     = {/home/huub/Documents/Research/main/Sources/Barnes1995a-An\_intuitive\_approach\_to\_calculus.pdf},
  Url                      = {http://hsc.csu.edu.au/maths/teacher_resources/2384/prof_reading/journals/barnes/M_Barnes_Nov_95.html},
  Urldate                  = {2010-01-19},
  Year                     = {1995}
}

@Article{Barr2011a,
  Title                    = {{Bringing Computational Thinking to K-12: What is Involved and What is the Role of the Computer Science Education Community?}},
  Author                   = {Barr, V. and Stephenson, C.},
  Journal                  = {ACM Inroads},
  Year                     = {2011},

  Month                    = feb,
  Number                   = {1},
  Pages                    = {48--54},
  Volume                   = {2},

  Acmid                    = {1929905},
  Address                  = {New York, NY, USA},
  Doi                      = {10.1145/1929887.1929905},
  File                     = {/home/huub/Documents/Research/main/Sources/Barr2011a-Bringing\_computational\_thinking\_to\_k12.pdf},
  ISSN                     = {2153-2184},
  Issue_date               = {March 2011},
  Keywords                 = {K-12 CS Education; K-12 curriculum; computational thinking; cross-disciplinary computing},
  Numpages                 = {7},
  Publisher                = {ACM},
  Url                      = {http://doi.acm.org/10.1145/1929887.1929905}
}

@Article{Barton1997a,
  Title                    = {{Computer-aided graphing: a comparative study}},
  Author                   = {Barton, Roy},
  Journal                  = {Technology, Pedagogy and Education},
  Year                     = {1997},
  Number                   = {1},
  Pages                    = {59--72},
  Volume                   = {6},

  File                     = {/home/huub/Documents/Research/main/Sources/Barton1997a-Computer-aided\_graphing-a\_comparative\_study.pdf},
  ISSN                     = {1475-939X},
  Keywords                 = {ict; graph; representation; secondary education; electricity; alternative domain},
  Publisher                = {Routledge}
}

@Article{Bassok1995a,
  Title                    = {{Object-based representations: Transfer between cases of continuous and discrete models of change}},
  Author                   = {Bassok, Miriam and Olseth, Karen L.},
  Journal                  = {Journal of Experimental Psychology: Learning, Memory, and Cognition},
  Year                     = {1995},
  Number                   = {6},
  Pages                    = {1522--1538},
  Volume                   = {21},

  File                     = {/home/huub/Documents/Research/main/Sources/Bassok1995a-Object-based\_representations-Transfer\_between\_cases\_of\_continuous\_and\_discrete\_models\_of\_change.pdf},
  ISBN                     = {0278-7393},
  Language                 = {English},
  Url                      = {http://search.proquest.com/docview/614327802?accountid=27128}
}

@Article{Beach1999a,
  Title                    = {{Consequential transitions: A sociocultural expedition beyond transfer in education}},
  Author                   = {Beach, King},
  Journal                  = {Review of research in education},
  Year                     = {1999},
  Number                   = {1},
  Pages                    = {101--139},
  Volume                   = {24},

  File                     = {/home/huub/Documents/Research/main/Sources/Beach1999a-Concequential\_transitions-A\_sociocultural\_expedition\_beyond\_transfer\_in\_education.pdf},
  Keywords                 = {social-cultural; transfer},
  Url                      = {http://people.ucsc.edu/\~gwells/Files/Courses_Folder/ED%20261%20Papers/Beach%20Transfer.pdf}
}

@Article{Beauchamp2008a,
  Title                    = {{The influence of ICT on the interactivity of teaching}},
  Author                   = {Beauchamp, Gary and Kennewell, Steve},
  Journal                  = {Education and Information Technologies},
  Year                     = {2008},
  Number                   = {4},
  Pages                    = {305--315},
  Volume                   = {13},

  File                     = {/home/huub/Documents/Research/main/Sources/Beauchamp2008a-The\_influence\_of\_ICT\_on\_the\_interactivity\_of\_teaching.pdf},
  Keywords                 = {ict; interactive; teacher; primary education; secondary education},
  Publisher                = {Springer}
}

@PhdThesis{Beer2016a,
  Title                    = {{Exploring Instantaneous speed in grade 5. A design research}},
  Author                   = {H. de Beer},
  School                   = {Eindhoven University of Technology},
  Year                     = {2016},

  Address                  = {the Netherlands}
}

@Unpublished{Beer2014ub,
  Title                    = {{Teaching primary calculus: an hypothetical learning theory based on emergent modeling}},
  Author                   = {de Beer, H. and Gravemeijer, K. and van Eijck, M.}
}

@article{Beer2018a,
  Title                    = {{Exploring Instantaneous Speed in Fifth Grade}},
  Author                   = {de Beer, H. and Gravemeijer, K. and van Eijck, M.},
  Year                     = {2018},
  journal                  = {Educational Designer},
  volume                   = {3},
  number                   = {10},
  url                      = {http://www.educationaldesigner.org/ed/volume3/issue10/article39/}
}

@Unpublished{Beer2014ua,
  Title                    = {{Starting points for a local instruction theory on teaching instantaneous speed in primary school}},
  Author                   = {de Beer, H. and Gravemeijer, K. and van Eijck, M.},
  Year                     = {in preparation},

  Pubstate                 = {unpublished}
}

@Unpublished{Beer2015ua,
  Title                    = {{Local Instruction Theorie on Instantaneous Speed in 5th Grade}},
  Author                   = {de Beer, H. and Gravemeijer, K. and van Eijck, M.},
  Year                     = {in preparation}
}

@Unpublished{Beer2015ub,
  Title                    = {{Design research as an augmented form of educational design: Teaching instantaneous speed in fifth grade}},
  Author                   = {de Beer, H. and Gravemeijer, K. and van Eijck, M.},
  Year                     = {in preparation}
}

@Article{Beer2015a,
  Title                    = {{Discrete and continuous reasoning about change in primary school classrooms}},
  Author                   = {de Beer, H. and Gravemeijer, K. and van Eijck, M.},
  Journal                  = {ZDM},
  Year                     = {2015},
  Pages                    = {1--16},

  Doi                      = {10.1007/s11858-015-0684-5},
  ISSN                     = {1863-9690},
  Keywords                 = {Design research; Graphing; Instantaneous rate of change; Modeling-based learning; Primary education},
  Language                 = {English},
  Localfile                = {/home/huub/to-research/Sources/Beer2015a-Discrete_and_continuous_reasoning_about_change_in_primary_school.pdf},
  Publisher                = {Springer Berlin Heidelberg},
  Url                      = {http://dx.doi.org/10.1007/s11858-015-0684-5}
}

@Article{Beer2017a,
  Title                    = {A proposed local Instruction theory for teaching instantaneous speed in grade five},
  Author                   = {Beer, Huub de and Koeno Gravemeijer and Michiel van Eijck},
  Journal                  = {The Mathematics Enthusiast},
  Year                     = {2017},
  Number                   = {1},
  Pages                    = {435--468},
  Volume                   = {14},

  Keywords                 = {design research, instantaneous speed, primary education, rate of change},
  Url                      = {http://scholarworks.umt.edu/tme/vol14/iss1/24}
}

@Article{Bell2004a,
  Title                    = {{On the theoretical breadth of design-based research in education}},
  Author                   = {Bell, P.},
  Journal                  = {Educational Psychologist},
  Year                     = {2004},
  Number                   = {4},
  Pages                    = {243--253},
  Volume                   = {39},

  ISSN                     = {0046-1520},
  Publisher                = {Routledge}
}

@Article{Bell2010a,
  Title                    = {{Collaborative Inquiry Learning: Models, tools, and challenges}},
  Author                   = {Bell, Thorsten and Urhahne, Detlef and Schanze, Sascha and Ploetzner, Rolf},
  Journal                  = {International Journal of Science Education},
  Year                     = {2010},
  Number                   = {3},
  Pages                    = {349--377},
  Volume                   = {32},

  Doi                      = {10.1080/09500690802582241},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/09500690802582241},
  File                     = {/home/huub/Documents/Research/main/Sources/Bell2010a-Collaborative\_inquiry\_learning-models\_tools\_and\_challenges.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/09500690802582241}
}

@Article{Belland2008a,
  Title                    = {{A scaffolding framework to support the construction of evidence-based arguments among middle school students}},
  Author                   = {Belland, Brian R. and Glazewski, Kristen D. and Richardson, Jennifer C.},
  Journal                  = {Educational Technology Research and Development},
  Year                     = {2008},
  Number                   = {4},
  Pages                    = {401--422},
  Volume                   = {56},

  File                     = {/home/huub/Documents/Research/main/Sources/Belland2008a-a\_scaffolding\_framework\_to-support\_the\_construction\_of\_evidence-based-arguments\_among\_middle\_school\_students.pdf}
}

@Article{Bennett2010a,
  Title                    = {{Beyond the {\lq}digital natives{\rq} debate: Towards a more nuanced understanding of students' technology experiences}},
  Author                   = {Bennett, S. and Maton, K.},
  Journal                  = {Journal of Computer Assisted Learning},
  Year                     = {2010},
  Number                   = {5},
  Pages                    = {321--331},
  Volume                   = {26},

  Doi                      = {10.1111/j.1365-2729.2010.00360.x},
  File                     = {/home/huub/Documents/Research/main/Sources/Bennett2010a-Beyond\_the\_digital\_natives\_debate.pdf},
  ISSN                     = {1365-2729},
  Keywords                 = {Bernstein; Bourdieu; digital native; education; information and communication technologies; sociology of educational technology},
  Publisher                = {Blackwell Publishing Ltd},
  Url                      = {http://dx.doi.org/10.1111/j.1365-2729.2010.00360.x}
}

@Article{Bennett2008a,
  Title                    = {{The {\lq}digital natives{\rq} debate: A critical review of the evidence}},
  Author                   = {Bennett, Sue and Maton, Karl and Kervin, Lisa},
  Journal                  = {British journal of educational technology},
  Year                     = {2008},
  Number                   = {5},
  Pages                    = {775--786},
  Volume                   = {39},

  File                     = {/home/huub/Documents/Research/main/Sources/Bennett2008a-The-digital\_natives-debate-a\_critical\_review\_of\_the\_evidence.pdf},
  Url                      = {http://kimhuett.wiki.westga.edu/file/view/The-digital-natives-debate-A-critical-review-of-the-evidence.pdf}
}

@Book{Berg2004a,
  Title                    = {{Qualitative research methods for the social sciences}},
  Author                   = {Berg, Bruce Lawrence},
  Publisher                = {Pearson Education},
  Year                     = {2004},
  Edition                  = {5},
  Note                     = {First edition published in 1989}
}

@Article{Berg2009a,
  Title                    = {{Learning graphs and learning science with sensors in learning corners in fifth and sixth grade}},
  Author                   = {van den Berg, Ed and Schweickert, Frank and Manneveld, Gerda},
  Journal                  = {Contemporary science education research: teaching},
  Year                     = {2009},
  Pages                    = {383--394},

  File                     = {/home/huub/Documents/Research/main/Sources/Berg2009a-Learning\_graphs\_and\_learning\_science\_with\_sensors\_in\_learning\_corners\_in\_5th\_and\_6th\_grade.pdf},
  Keywords                 = {calculus; primary education; representation; graph; motion domain; ict; alternative domain; sound; sensor},
  Url                      = {http://www.esera2009.org/books/Book1_CSER_Teaching.pdf#page=397}
}

@Article{Besson2010a,
  Title                    = {{Calculating and understanding: Formal models and causal explanations in science, common reasoning and physics teaching}},
  Author                   = {Besson, Ugo},
  Journal                  = {Science \& Education},
  Year                     = {2010},
  Number                   = {3},
  Pages                    = {225--257},
  Volume                   = {19},

  File                     = {/home/huub/Documents/Research/main/Sources/Besson2010a-Calculating\_and\_understanding-Formal\_models\_and\_causal\_explanations\_in\_science\_common\_reasoning\_and\_physics\_teaching.pdf}
}

@InCollection{Betrancourt2005a,
  Title                    = {{The animation and interactivity principles in multimedia learning}},
  Author                   = {Betrancourt, Mireille},
  Booktitle                = {{The Cambridge handbook of multimedia learning}},
  Year                     = {2005},
  Pages                    = {287--296},

  File                     = {/home/huub/Documents/Research/main/Sources/Betrancourt2005a-The\_animation\_and\_interactivity\_principles\_in\_multimedia\_learning.pdf}
}

@Article{Bikner2006a,
  Title                    = {{Diversity of theories in mathematics education -- How can we deal with it?}},
  Author                   = {Bikner-Ahsbahs, Angelika and Prediger, Susanne},
  Journal                  = {ZDM},
  Year                     = {2006},
  Number                   = {1},
  Pages                    = {52--57},
  Volume                   = {38},

  File                     = {/home/huub/Documents/Research/main/Sources/Bikner2006a-Diversity\_of\_theories\_in\_mathematics\_education.pdf},
  ISSN                     = {1863-9690},
  Keywords                 = {theory; mathematics},
  Publisher                = {Springer}
}

@Article{Bingimlas2009a,
  Title                    = {{Barriers to the successful integration of ICT in teaching and learning environments: a review of the literature}},
  Author                   = {Bingimlas, Khalid Abdullah},
  Journal                  = {Eurasia Journal of Mathematics, Science \& Technology Education},
  Year                     = {2009},
  Number                   = {3},
  Pages                    = {235--245},
  Volume                   = {5},

  File                     = {/home/huub/Documents/Research/main/Sources/Bingimlas2009a-Barriers\_to\_the\_succesful\_integration\_of\_ICT\_in\_teaching\_and\_learning\_environments.pdf},
  Keywords                 = {ict; review; teacher}
}

@Article{Black2009a,
  Title                    = {{In Response To: Alan Schoenfeld}},
  Author                   = {Black, Paul},
  Journal                  = {Educational Designer},
  Year                     = {2009},
  Number                   = {3},
  Volume                   = {1},

  HowPublished             = {Retrieved from: http://www.educationaldesigner.org/ed/volume1/issue3/article12},
  Localfile                = {/home/huub/to-research/Sources/Black2009a-In_response_to_Schoenfeld2009a.pdf},
  Url                      = {http://www.educationaldesigner.org/ed/volume1/issue3/article12}
}

@Article{Blikstein2013a,
  Title                    = {{Digital Fabrication and {\lq}Making{\rq}in Education: The Democratization of Invention}},
  Author                   = {Blikstein, Paulo},
  Journal                  = {FabLabs: Of Machines, Makers and Inventors},
  Year                     = {2013},
  Pages                    = {1--21},

  File                     = {/home/huub/Documents/Research/main/Sources/Blikstein2013a-Digital\_fabrication\_and\_making\_in\_education-the\_democratization\_of\_invention.pdf}
}

@Article{Blum2002a,
  Title                    = {{ICMI Study 14: Applications and modelling in mathematics education--Discussion document}},
  Author                   = {Blum, Werner},
  Journal                  = {Educational studies in mathematics},
  Year                     = {2002},
  Number                   = {1},
  Pages                    = {149--171},
  Volume                   = {51},

  File                     = {/home/huub/Documents/Research/main/Sources/Blum2002a-ICMI\_study\_14-Applications\_and\_modelling\_in\_mathematics\_education.pdf}
}

@Article{Bock2002a,
  Title                    = {{Improper use of linear reasoning: An in-depth study of the nature and the irresistibility of secondary school students' errors}},
  Author                   = {de Bock, Dirk and van Dooren, Wim and Janssens, Dirk and Verschaffel, Lieven},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {2002},
  Number                   = {3},
  Pages                    = {311--334},
  Volume                   = {50},

  File                     = {/home/huub/Documents/Research/main/Sources/Bock2002a-Improper\_use\_of\_linear\_reasoning.pdf},
  Keywords                 = {linearity},
  Publisher                = {Springer}
}

@Book{Boersema2009a,
  Title                    = {{Pragmatism and reference}},
  Author                   = {Boersema, David},
  Publisher                = {MIT Press},
  Year                     = {2009},

  File                     = {/home/huub/Documents/Research/main/Sources/Boersema2009a-Pragmatism\_and\_reference.pdf},
  Url                      = {http://www.lightforcenetwork.com/sites/default/files/David%20Boersema%20-%20Pragmatism%20and%20Reference.1-146.pdf}
}

@Article{Boudourides2008a,
  Title                    = {{Constructivism, Education, Science, and Technology}},
  Author                   = {Boudourides, M.},
  Journal                  = {Canadian Journal of Learning and Technology / La revue canadienne de l{\rq}apprentissage et de la technologie},
  Year                     = {2008},
  Number                   = {3},
  Volume                   = {29},

  Abstract                 = {Abstract: The purpose of this paper is to present a brief review of the various streams of constructivism in studies of education, society, science and technology. It is intended to present a number of answers to the question (what really is constructivism?) in the context of various disciplines from the humanities and the sciences (both natural and social). In particular the discussion will focus on four varieties of constructivism: philosophical, cybernetic, educational, and sociological constructivism.},
  ISSN                     = {1499-6685},
  Keywords                 = {review; constructivism; glasersfeld; vygotsky},
  Url                      = {http://www.cjlt.ca/index.php/cjlt/article/view/83/77}
}

@InCollection{Boulter2000a,
  Title                    = {{Constructing a typology of models for science education}},
  Author                   = {Boulter, C. and Buckley, B.},
  Year                     = {2000},
  Pages                    = {41--57},

  File                     = {/home/huub/Documents/Research/main/Sources/Boulter2000a-Constructing\_a\_topology\_of\_models\_for\_science\_education.pdf},
  Journal                  = {Developing models in science education}
}

@Article{Bowden1992a,
  Title                    = {{Displacement, velocity, and frames of reference: Phenomenographic studies of students' understanding and some implications for teaching and assessment}},
  Author                   = {Bowden, J. and Dall'Alba, G. and Martin, E. and Laurillard, D. and Marton, F. and Masters, G. and Ramsden, P. and Stephanou, A. and Walsh, E.},
  Journal                  = {American Journal of Physics},
  Year                     = {1992},
  Number                   = {3},
  Pages                    = {262--269},
  Volume                   = {60},

  Doi                      = {10.1119/1.16907},
  File                     = {/home/huub/Documents/Research/main/Sources/Bowden1992a-Displacement\_velocity\_and\_frames\_of\_reference.pdf},
  Keywords                 = {motion domain; secondary education; higher education; qualitative; quantitative},
  Publisher                = {AAPT},
  Url                      = {http://link.aip.org/link/?AJP/60/262/1}
}

@Article{Bowers2011a,
  Title                    = {{Adapting the mathematical task framework to design online didactic objects}},
  Author                   = {Bowers, Janet and Bezuk, Nadine and Aguilar, Karen},
  Journal                  = {International Journal of Mathematical Education in Science and Technology},
  Year                     = {2011},
  Number                   = {4},
  Pages                    = {481--495},
  Volume                   = {42},

  File                     = {/home/huub/Documents/Research/main/Sources/Bowers2011a-Adapting\_the\_mathematical\_task\_framework\_to\_design\_online\_didactic\_objects.pdf},
  Keywords                 = {ict; hypothetical learning trajectory; mathematics; higher education; motion domain; alternative domain}
}

@Article{Boyd1996a,
  Title                    = {{Interactive video: A bridge between motion and math}},
  Author                   = {Boyd, Andrew and Rubin, Andee},
  Journal                  = {International Journal of Computers for Mathematical Learning},
  Year                     = {1996},
  Number                   = {1},
  Pages                    = {57--93},
  Volume                   = {1},

  File                     = {/home/huub/Documents/Research/main/Sources/Boyd1996a-Interactive\_video-A\_bridge\_between\_motion\_and\_math.pdf},
  Keywords                 = {motion domain; graph; representation; multimedia; table; calculus; interpret graph; primary education}
}

@Book{Boyer1959a,
  Title                    = {{The history of the calculus and its conceptual development.(The concepts of the calculus)}},
  Author                   = {Boyer, C.B.},
  Publisher                = {Dover Publications},
  Year                     = {1959},

  Address                  = {Mineola},
  Edition                  = {2nd}
}

@Article{Bransford2000a,
  Title                    = {{When Computer Technologies Meet the Learning Sciences: Issues and Opportunities}},
  Author                   = {Bransford, John and Brophy, Sean and Williams, Susan},
  Journal                  = {Journal of Applied Developmental Psychology},
  Year                     = {2000},
  Number                   = {1},
  Pages                    = {59--84},
  Volume                   = {21},

  File                     = {/home/huub/Documents/Research/main/Sources/Bransford2000a-When\_computer\_technologies\_meet\_the\_learning\_sciences.pdf},
  Keywords                 = {ict; learning},
  Publisher                = {Elsevier},
  Url                      = {http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.20.4619&rep=rep1&type=pdf}
}

@Article{Bransford1999a,
  Title                    = {{Rethinking transfer: A simple proposal with multiple implications}},
  Author                   = {Bransford, John and Schwartz, Daniel},
  Journal                  = {Review of research in education},
  Year                     = {1999},
  Pages                    = {61--100},
  Volume                   = {24},

  File                     = {/home/huub/Documents/Research/main/Sources/Bransford1999a-Rethinking\_transfer-A\_simple\_proposal\_with\_multiple\_implications.pdf},
  Url                      = {http://artstart2011.pbworks.com/f/Bransford%2B%2526%2BSchwartz-transfer.pdf}
}

@Article{Braun2006a,
  Title                    = {{Using thematic analysis in psychology}},
  Author                   = {Braun, Virginia and Clarke, Victoria},
  Journal                  = {Qualitative research in psychology},
  Year                     = {2006},
  Number                   = {2},
  Pages                    = {77--101},
  Volume                   = {3},

  File                     = {/home/huub/Documents/Research/main/Sources/Braun2006a-Using\_thematic\_analysis\_in\_psychology.pdf}
}

@Article{Brown1992a,
  Title                    = {{Design experiments: Theoretical and methodological challenges in creating complex interventions in classroom settings}},
  Author                   = {Brown, Ann L.},
  Journal                  = {Journal of the learning sciences},
  Year                     = {1992},
  Number                   = {2},
  Pages                    = {141--178},
  Volume                   = {2},

  File                     = {/home/huub/Documents/Research/main/Sources/Brown1992a-Design\_experiments-Theoretical\_and\_methodological\_challenges\_in\_creating\_complex\_interventions\_in\_classroom\_settings.pdf},
  Keywords                 = {design research; gap},
  Publisher                = {Routledge}
}

@Article{Brown1989a,
  Title                    = {{Situated cognition and the culture of learning}},
  Author                   = {Brown, J. and Collins, A. and Duguid, P.},
  Journal                  = {Educational researcher},
  Year                     = {1989},
  Number                   = {1},
  Pages                    = {32--42},
  Volume                   = {18},

  File                     = {/home/huub/Documents/Research/main/Sources/Brown1989a-Situated\_cognition\_and\_the\_culture\_of\_learning.pdf},
  ISSN                     = {0013-189X},
  Keywords                 = {situated cognition; gap},
  Publisher                = {JSTOR},
  Url                      = {http://www.psychology.nottingham.ac.uk/staff/sea/c8cxce/Readings/BrownCollinsDuguid1989.pdf}
}

@Article{Buckingham2000a,
  Title                    = {{The Developmental Course of Distance, Time, and Velocity Concepts:A Generative Connectionist Model}},
  Author                   = {Buckingham, David and Schultz, Thomas R.},
  Journal                  = {Journal of Cognition and Development},
  Year                     = {2000},
  Number                   = {3},
  Pages                    = {305--345},
  Volume                   = {1},

  File                     = {/home/huub/Documents/Research/main/Sources/Buckingham2000a-The\_developmental\_course\_of\_distance\_time\_and\_velocity\_concepts-A\_generative\_connectionist\_model.pdf},
  Keywords                 = {motion domain; connectionism; review},
  Url                      = {http://www.psych.mcgill.ca/perpg/fac/shultz/personal/Recent\_Publications\_files/dtv00.pdf}
}

@Electronic{SLO2008a,
  Title                    = {{TULE - Rekenen/wiskunde. Inhouden en activiteiten bij de kerndoelen. Inhoud van de website tule.slo.nl}},
  Author                   = {Buijs, Kees and Klep, Joost and Noteboom, Anneke},
  Organization             = {SLO},
  Url                      = {http://www.slo.nl/downloads/2008/tule-rekenenwiskunde2011.pdf},
  Year                     = {2008},

  Keywords                 = {primary education}
}

@Article{Bundy2007a,
  Title                    = {{Computational thinking is pervasive}},
  Author                   = {Bundy, Alan},
  Journal                  = {Journal of Scientific and Practical Computing},
  Year                     = {2007},
  Number                   = {2},
  Pages                    = {67--69},
  Volume                   = {1},

  File                     = {/home/huub/Documents/Research/main/Sources/Bundy2007a-Computational\_thinking\_is\_pervasive.pdf}
}

@Article{Burkhardt2003a,
  Title                    = {{Improving educational research: toward a more useful, more influential, and better-funded enterprise}},
  Author                   = {Burkhardt, H. and Schoenfeld, A.},
  Journal                  = {Educational Researcher},
  Year                     = {2003},
  Number                   = {9},
  Pages                    = {3--14},
  Volume                   = {32},

  Localfile                = {/home/huub/Documents/Research/main/Sources/Burkhardt2003a-Improving_educational_research.pdf}
}

@Article{Burks1946a,
  Title                    = {{Peirce's theory of abduction}},
  Author                   = {Burks, Arthur W},
  Journal                  = {Philosophy of Science},
  Year                     = {1946},
  Pages                    = {301--306},

  Localfile                = {/home/huub/Documents/Research/main/Sources/Burks1946a-Peirces_theory_of_abduction.pdf},
  Url                      = {http://people.ucsc.edu/~ktellez/abduction.pdf}
}

@Article{Campbell2012a,
  Title                    = {{Discursive Modes and Their Pedagogical Functions in Model-Based Inquiry (MBI) Classrooms}},
  Author                   = {Campbell, Todd and Oh, Phil Seok and Neilson, Drew},
  Journal                  = {International Journal of Science Education},
  Year                     = {2012},
  Number                   = {15},
  Pages                    = {2393--2419},
  Volume                   = {34},

  File                     = {/home/huub/Documents/Research/main/Sources/Campbell2012a-Discursive\_modes\_and\_their\_pedagogical\_functions\_in\_model-based\_inquiry\_classrooms.pdf}
}

@InCollection{Carey1992a,
  Title                    = {{The origin and evolution of everyday concepts}},
  Author                   = {Carey, Susan},
  Booktitle                = {{Cognitive models of science}},
  Publisher                = {University of Minnesota Press},
  Year                     = {1992},
  Editor                   = {Giere, R.},
  Pages                    = {89--128},

  File                     = {/home/huub/Documents/Research/main/Sources/Carey1992a-The\_origin\_and\_evolution\_of\_everyday\_concepts.pdf},
  Url                      = {http://www.wjh.harvard.edu/~lds/pdfs/carey1992a.pdf}
}

@Article{Carey2000a,
  Title                    = {{Science education as conceptual change}},
  Author                   = {Carey, Susan},
  Journal                  = {Journal of Applied Developmental Psychology},
  Year                     = {2000},
  Number                   = {1},
  Pages                    = {13--19},
  Volume                   = {21},

  File                     = {/home/huub/Documents/Research/main/Sources/Carey2000a-Science\_education\_as\_conceptual\_change.pdf},
  Keywords                 = {conceptual change; science},
  Publisher                = {Elsevier}
}

@Article{Carey1993a,
  Title                    = {{On understanding the nature of scientific knowledge}},
  Author                   = {Carey, Susan and Smith, Carol},
  Journal                  = {Educational Psychologist},
  Year                     = {1993},
  Number                   = {3},
  Pages                    = {235--251},
  Volume                   = {28},

  Doi                      = {10.1207/s15326985ep2803_4},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1207/s15326985ep2803\_4},
  File                     = {/home/huub/Documents/Research/main/Sources/Carey1993a-On\_understanding\_the\_nature\_of\_scientific\_knowledge.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1207/s15326985ep2803_4}
}

@InCollection{Carlson1998a,
  Title                    = {{A cross-sectional investigation of the development of the function concept}},
  Author                   = {Carlson, Marilyn},
  Booktitle                = {{Research in collegiate mathematics education}},
  Year                     = {1998},
  Editor                   = {Dubinsky, E. and Schoenfeld, A. and Kaput, J.},
  Pages                    = {115--162},
  Series                   = {{Issues in mathematics education}},
  Volume                   = {7},

  File                     = {/home/huub/Documents/Research/main/Sources/Carlson1998a-A\_cross-sectional\_investigation\_of\_the\_development\_of\_the\_function\_concept.pdf},
  Keywords                 = {function; higher education; motion domain; alternative domain},
  Url                      = {http://stat.asu.edu/~carlson/crosssec.pdf}
}

@Article{Carlson2002a,
  Title                    = {{Applying covariational reasoning while modeling dynamic events: A framework and a study}},
  Author                   = {Carlson, Marilyn and Jacobs, Sally and Coe, Edwar and Larsen, Sean and Hsu, Eric},
  Year                     = {2002},
  Number                   = {5},
  Pages                    = {352--378},
  Volume                   = {33},

  File                     = {/home/huub/Documents/Research/main/Sources/Carlson2002a-Applying\_covariational\_reasoning\_while\_modeling\_dynamic\_events.pdf},
  Journaltitle             = {Journal for Research in Mathematics Education},
  Keywords                 = {compound variable quantities; higher education; instantaneous speed; draw graph}
}

@InCollection{Carlson2003a,
  Title                    = {{Integrating a models and modeling perspective with existing research and practice}},
  Author                   = {Carlson, Marilyn and Larsen, Sean and Lesh, Richard},
  Booktitle                = {{Beyond constructivism: Models and modeling perspectives on mathematics problem solving, learning, and teaching}},
  Publisher                = {Lawrence Erlbaum Associates},
  Year                     = {2003},

  Address                  = {Hillsdale},
  Editor                   = {Lesh, Richard and Doerr, H.},
  Pages                    = {465--478},

  File                     = {/home/huub/Documents/Research/main/Sources/Carlson2003a-Integrating\_a\_models\_and\_modeling\_perspective\_with\_existing\_research\_and\_practice.pdf},
  Keywords                 = {higher education; modeling; compound variable quantities},
  Url                      = {http://math.clas.asu.edu/~carlson/chap25.pdf}
}

@Article{Carlson2010a,
  Title                    = {{The Precalculus Concept Assessment: A Tool for Assessing Students' Reasoning Abilities and Understandings}},
  Author                   = {Carlson, Marilyn and Oehrtman, Michael and Engelke, Nicole},
  Journal                  = {Cognition and Instruction},
  Year                     = {2010},
  Number                   = {2},
  Pages                    = {113--145},
  Volume                   = {28},

  File                     = {/home/huub/Documents/Research/main/Sources/Carlson2010a-The\_precalculus\_concept\_assessment.pdf},
  Keywords                 = {higher education; calculus; function; compound variable quantities},
  Publisher                = {Routledge}
}

@Article{Carmichael2002a,
  Title                    = {{Extensible Markup Language and Qualitative Data Analysis}},
  Author                   = {Carmichael, Patrick},
  Journal                  = {Forum: qualitative sozialforschung},
  Year                     = {2002},

  Month                    = {may},
  Number                   = {2},
  Volume                   = {3},

  File                     = {/home/huub/Documents/Research/main/Sources/Carmichael2002a-Extensible\_markup\_language\_and\_qualitative\_data\_analysis.pdf},
  Url                      = {http://www.qualitative-research.net/index.php/fqs/article/view/852/1851}
}

@Conference{Carpenter2007a,
  Title                    = {{AC 2007-961: INTEGRATING CALCULUS AND INTRODUCTORY SCIENCE CONCEPTS}},
  Author                   = {Carpenter, Jenna},
  Year                     = {2007},

  File                     = {/home/huub/Documents/Research/main/Sources/Carpenter2007a-Integrating\_calculus\_and\_introductory\_science\_concepts.pdf},
  Keywords                 = {alternative domain; calculus; higher education; motion domain}
}

@Article{Carroll2002a,
  Title                    = {{Instantaneous motion}},
  Author                   = {Carroll, John W.},
  Journal                  = {Philosophical studies},
  Year                     = {2002},
  Number                   = {1},
  Pages                    = {49--67},
  Volume                   = {110},

  File                     = {/home/huub/Documents/Research/main/Sources/Carroll2002a-Instantaneous\_motion.pdf},
  Keywords                 = {philosophy; instantaneous speed; motion domain},
  Publisher                = {Springer}
}

@Article{Carter2005a,
  Title                    = {{Globalisation and science education: Rethinking science education reforms}},
  Author                   = {Carter, L.},
  Journal                  = {Journal of Research in Science Teaching},
  Year                     = {2005},
  Number                   = {5},
  Pages                    = {561--580},
  Volume                   = {42},

  Doi                      = {10.1002/tea.20066},
  File                     = {/home/huub/Documents/Research/main/Sources/Carter2005a-Globalisation\_and\_science\_education-rethinking\_science\_education\_reforms.pdf},
  ISSN                     = {1098-2736},
  Publisher                = {Wiley Subscription Services, Inc., A Wiley Company},
  Url                      = {http://dx.doi.org/10.1002/tea.20066}
}

@Article{Castells1997a,
  Title                    = {{An introduction to the information age}},
  Author                   = {Castells, M.},
  Journal                  = {City},
  Year                     = {1997},
  Number                   = {7},
  Pages                    = {6--16},
  Volume                   = {2}
}

@InCollection{Castillo2012a,
  Title                    = {{Continuous Quantitative Reasoning}},
  Author                   = {Castillo-Garsow, C.},
  Booktitle                = {{Quantitative reasoning and Mathematical Modeling: A Driver for STEM Integrated Education and Teaching in Context}},
  Year                     = {2012},
  Editor                   = {Mayes, R. and Bonillia, R. and Hatfield, L. L. and Belbase, S.},
  Pages                    = {55--73},

  File                     = {/home/huub/Documents/Research/main/Sources/Castillo2012a-Continuous\_quantitative\_reasoning.pdf},
  Url                      = {http://www.uwyo.edu/wisdome/_files/documents/castillo_garsow.pdf}
}

@Unpublished{Castillo2012b,
  Title                    = {{Chunky and Smooth Images of Change}},
  Author                   = {Castillo-Garsow, C. and Johnson, Heather L. and Moore, Kevin C.},

  File                     = {/home/huub/Documents/Research/main/Sources/Castillo2012b-Chunky\_and\_smooth\_images\_of\_change.pdf},
  Url                      = {http://yeolcoatl.net/research/2012_cwcg_chunky_and_smooth_endfig.pdf}
}

@Article{Chang2012a,
  Title                    = {{Teacher guidance to mediate student inquiry through interactive dynamic visualizations}},
  Author                   = {Chang, Hsin-Yi},
  Journal                  = {Instructional Science},
  Year                     = {2012},
  Pages                    = {1--26},

  Doi                      = {10.1007/s11251-012-9257-y},
  File                     = {/home/huub/Documents/Research/main/Sources/Chang2012a-Teacher\_guidance\_to\_mediate\_stuent\_inquiry\_through\_interactive\_dynamic\_visualizations.pdf},
  ISSN                     = {0020-4277},
  Keywords                 = {Teacher guidance; Interactive dynamic visualization; Inquiry; Secondary school science},
  Language                 = {English},
  Publisher                = {Springer Netherlands},
  Url                      = {http://dx.doi.org/10.1007/s11251-012-9257-y}
}

@Article{Chen1993a,
  Title                    = {{General system theory: Toward a conceptual framework for science and technology education for all}},
  Author                   = {Chen, David and Stroup, W.},
  Journal                  = {Journal of Science Education and Technology},
  Year                     = {1993},
  Number                   = {3},
  Pages                    = {447--459},
  Volume                   = {2},

  File                     = {/home/huub/Documents/Research/main/Sources/Chen1993a-General\_system\_theory.pdf},
  Keywords                 = {science},
  Publisher                = {Springer}
}

@Article{Chi2009a,
  Title                    = {{Active-constructive-interactive: A conceptual framework for differentiating learning activities}},
  Author                   = {Chi, Michelene},
  Journal                  = {Topics in Cognitive Science},
  Year                     = {2009},
  Number                   = {1},
  Pages                    = {73--105},
  Volume                   = {1},

  File                     = {/home/huub/Documents/Research/main/Sources/Chi2009a-Active-constructive-interactive-A\_conceptual\_framework\_for\_differentiating\_learning\_activities.pdf},
  Publisher                = {Wiley Online Library}
}

@Article{Chi2002a,
  Title                    = {{The processes and challenges of conceptual change}},
  Author                   = {Chi, Michelene and Roscoe, Rod},
  Journal                  = {Reconsidering conceptual change: Issues in theory and practice},
  Year                     = {2002},
  Pages                    = {3--27},

  File                     = {/home/huub/Documents/Research/main/Sources/Chi2002a-The\_processes\_and\_chalenges\_of\_conceptual\_change.pdf},
  Publisher                = {Springer}
}

@Article{Cho2006a,
  Title                    = {{Validity in qualitative research revisited}},
  Author                   = {Cho, J. and Trent, A.},
  Journal                  = {Qualitative Research},
  Year                     = {2006},
  Number                   = {3},
  Pages                    = {319--340},
  Volume                   = {6},

  Abstract                 = {Concerns with the issues of validity in qualitative research have dramatically increased. Traditionally, validity in qualitative research involved determining the degree to which researchers{\rq} claims about knowledge corresponded to the reality (or research participants{\rq} construction of reality) being studied. The authors note that recent trends have shown the emergence of two quite different approaches to the validity question within the literature on qualitative research. The authors categorize and label these {\lq}transactional{\rq} validity and {\lq}transformational{\rq} validity. While useful, the authors assert that neither approach is sufficient to meet the current needs of the field. The authors propose a recursive, process-oriented view of validity as an alternative framework.},
  Doi                      = {10.1177/1468794106065006},
  Eprint                   = {http://qrj.sagepub.com/content/6/3/319.full.pdf+html},
  File                     = {/home/huub/Documents/Research/main/Sources/Cho2006a-Validity\_in\_qualitative\_research\_revisited.pdf},
  Url                      = {http://qrj.sagepub.com/content/6/3/319.abstract}
}

@Article{Christie2009a,
  Title                    = {{Supporting group work in Scottish primary classrooms: improving the quality of collaborative dialogue}},
  Author                   = {Christie, Donald and Tolmie, Andrew and Thurston, Allen and Howe, Christine and Topping, Keith},
  Journal                  = {Cambridge Journal of Education},
  Year                     = {2009},
  Number                   = {1},
  Pages                    = {141--156},
  Volume                   = {39},

  File                     = {/home/huub/Documents/Research/main/Sources/Christie2009a-Supporting\_group\_work\_in\_Scottish\_primary\_classrooms-improving\_the\_quality\_of\_collaborative\_dialogue.pdf}
}

@InProceedings{Cicero2009a,
  Title                    = {{The use of motion sensor can lead the students to understanding the cartesian graph}},
  Author                   = {Cicero, Maria Lucia Lo and Spagnolo, Filippo},
  Booktitle                = {{Proceedings of the Sixth Conference of European Research in Mathematics Education, Lyon, France, 2009}},
  Year                     = {2009},
  Pages                    = {250--259},

  File                     = {/home/huub/Documents/Research/main/Sources/Cicero2009a-The\_use\_of\_motion\_sensor\_graphs\_can\_lead\_the\_students\_to\_understanding\_the\_cartesian\_graph.pdf},
  Url                      = {http://math.unipa.it/~grim/service/tesi_PhD_marzo_2010/Lo%20Cicero%20ML_tesi%20PhD%202010/ALLEGATO%202.pdf}
}

@Book{Clagett1959a,
  Title                    = {{The science of mechanics in the middle ages}},
  Author                   = {Clagett, Marshall},
  Publisher                = {The University of Wisconsin Press},
  Year                     = {1959},

  File                     = {/home/huub/Documents/Research/main/Sources/Clagett1959a-Science\_of\_mechanics\_in\_the\_Middle\_Ages-Chapter\_6.pdf},
  Keywords                 = {history; mathematics; science}
}

@Article{Clandinin2006a,
  Title                    = {{Narrative Inquiry: A Methodology for Studying Lived Experience}},
  Author                   = {Clandinin, D.},
  Journal                  = {Research Studies in Music Education},
  Year                     = {2006},
  Number                   = {1},
  Pages                    = {44--54},
  Volume                   = {27},

  Abstract                 = {The paper briefly outlines the history and development of the methodology of narrative inquiry. It draws attention to the need for careful delineation of terms and assumptions. A Deweyan view of experience is central to narrative inquiry methodology and is used to frame a metaphorical three-dimensional narrative inquiry space. An illustration from a recent narrative inquiry into curriculum making is used to show what narrative inquirers do. Issues of social significance, purpose and ethics are also outlined.},
  Doi                      = {10.1177/1321103X060270010301},
  Eprint                   = {http://rsm.sagepub.com/content/27/1/44.full.pdf+html},
  Url                      = {http://rsm.sagepub.com/content/27/1/44.abstract}
}

@Article{Clement1989a,
  Title                    = {{Learning via model construction and criticism}},
  Author                   = {Clement, John},
  Journal                  = {Handbook of creativity: Assessment, theory and research},
  Year                     = {1989},
  Pages                    = {341--381},

  File                     = {/home/huub/Documents/Research/main/Sources/Clement1989a-Learning\_via\_model\_construction\_and\_criticism.pdf},
  Keywords                 = {theory; science}
}

@Article{Clement1989b,
  Title                    = {{The Concept of Variation and Misconceptions in Cartesian Graphing.}},
  Author                   = {Clement, John},
  Journal                  = {Focus on Learning Problems in Mathematics},
  Year                     = {1989},
  Number                   = {1},
  Pages                    = {77--87},
  Volume                   = {11},

  File                     = {/home/huub/Documents/Research/main/Sources/Clement1989b-The\_concept\_of\_variation\_and\_misconceptions\_in\_cartesian\_graphing.pdf}
}

@Article{Clements1999a,
  Title                    = {{The future of educational computing research: The case of computer programming}},
  Author                   = {Clements, Douglas H.},
  Journal                  = {Information Technology in Childhood Education},
  Year                     = {1999},
  Pages                    = {147--179},
  Volume                   = {1},

  File                     = {/home/huub/Documents/Research/main/Sources/Clements1999a-The\_future\_of\_educational\_computing\_research-The\_case\_of\_programming.pdf},
  Url                      = {http://investigations.terc.edu/library/bookpapers/educational_computing.pdf}
}

@Article{Clements2004a,
  Title                    = {{Learning Trajectories in Mathematics Education}},
  Author                   = {Clements, Douglas H. and Sarama, Julie},
  Journal                  = {Mathematical Thinking and Learning},
  Year                     = {2004},
  Number                   = {2},
  Pages                    = {81--89},
  Volume                   = {6},

  Doi                      = {10.1207/s15327833mtl0602_1},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1207/s15327833mtl0602\_1},
  File                     = {/home/huub/Documents/Research/main/Sources/Clements2004a-Learning\_trajectories\_in\_mathematics\_education.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1207/s15327833mtl0602_1}
}

@InCollection{Clements2014a,
  Title                    = {{Fifty Years of Thinking About Visualization and Visualizing in Mathematics Education: A Historical Overview}},
  Author                   = {Clements, McKenzie(Ken)A.},
  Booktitle                = {{Mathematics \& Mathematics Education: Searching for Common Ground}},
  Publisher                = {Springer Netherlands},
  Year                     = {2014},
  Editor                   = {Fried, Michael N. and Dreyfus, Tommy},
  Pages                    = {177--192},
  Series                   = {{Advances in Mathematics Education}},

  Doi                      = {10.1007/978-94-007-7473-5_11},
  File                     = {/home/huub/Documents/Research/main/Sources/Clements2014a-Fifty\_years\_of\_thinking\_about\_visualization\_and\_visualizing\_in\_mathematics\_education.pdf},
  ISBN                     = {978-94-007-7472-8},
  Keywords                 = {Visual image; Visualization; Mathematics learning; Problem solving; Item response theory; Verbal-visual},
  Language                 = {English},
  Url                      = {http://dx.doi.org/10.1007/978-94-007-7473-5_11}
}

@InCollection{Clements2013a,
  Title                    = {{From the Few to the Many: Historical Perspectives on Who Should Learn Mathematics}},
  Author                   = {Clements, M. and Keitel, C. and Bishop, A. and Kilpatrick, J. and Leung, F.},
  Booktitle                = {{Third International Handbook of Mathematics Education}},
  Publisher                = {Springer New York},
  Year                     = {2013},
  Editor                   = {Clements, M.A. (Ken) and Bishop, Alan J. and Keitel, Christine and Kilpatrick, Jeremy and Leung, Frederick K.S.},
  Pages                    = {7--40},
  Series                   = {{Springer International Handbooks of Education}},
  Volume                   = {27},

  Doi                      = {10.1007/978-1-4614-4684-2_1},
  File                     = {/home/huub/Documents/Research/main/Sources/Clements2013a-From\_the\_few\_to\_the\_many.pdf},
  ISBN                     = {978-1-4614-4683-5},
  Language                 = {English},
  Url                      = {http://dx.doi.org/10.1007/978-1-4614-4684-2_1}
}

@InCollection{Cobb2007a,
  Title                    = {{Putting philosophy to work. Coping with multiple theoretical frameworks}},
  Author                   = {Cobb, P.},
  Booktitle                = {{Second handbook of research on mathematics teaching and learning: a project of the National Council of Teachers of Mathematics}},
  Year                     = {2007},
  Editor                   = {Lester, Frank K.},
  Pages                    = {3--38},
  Volume                   = {1}
}

@InCollection{Cobb2003a,
  Title                    = {{Chapter 1: Investigating Students' Reasoning about Linear Measurement as a Paradigm Case of Design Research}},
  Author                   = {Cobb, P.},
  Booktitle                = {{Supporting Students' Development of Measuring Conceptions: Analyzing Students' Learning in Social Context}},
  Year                     = {2003},
  Pages                    = {1--16},
  Series                   = {{Journal for Research in Mathematics Education. Monograph}},
  Volume                   = {12},

  File                     = {/home/huub/Documents/Research/main/Sources/Cobb2003a-Investigating\_students\_reasoning\_about\_linear\_measurement.pdf},
  Url                      = {http://www.jstor.org/stable/30037718}
}

@Article{Cobb2003b,
  Title                    = {{Design experiments in educational research}},
  Author                   = {Cobb, P. and Confrey, J. and diSessa, A. and Lehrer, R. and Schauble, L.},
  Journal                  = {Educational researcher},
  Year                     = {2003},
  Number                   = {1},
  Pages                    = {9--13},
  Volume                   = {32},

  File                     = {/home/huub/Documents/Research/main/Sources/Cobb2003b-Design\_experiments\_in\_educational\_research.pdf},
  Keywords                 = {design research}
}

@InCollection{Cobb2014a,
  Title                    = {{Design research: An analysis and critique}},
  Author                   = {Cobb, P. and Jackson, K. and Dunlap, C.},
  Booktitle                = {{Handbook of international research in mathematics education}},
  Year                     = {2014},
  Editor                   = {English, L. and Kirshner, D.},

  Localfile                = {/home/huub/to-research/Sources/Cobb2014a-Design_research-An_analysis_and_critique.pdf},
  Url                      = {http://peabody.vanderbilt.edu/docs/pdf/tl/dr-chpt-international-handbook.pdf}
}

@Article{Cobb2015a,
  Title                    = {{Design research: A critical analysis}},
  Author                   = {Cobb, P. and Jackson, K. and Munoz, C.},
  Journal                  = {Handbook of international research in mathematics education},
  Year                     = {in press},

  Address                  = {New York},
  Edition                  = {3},
  Localfile                = {/home/huub/to-research/Sources/Cobb2015a-Design_research-A_critical_analysis.pdf},
  Published                = {Routledge}
}

@Article{Cobb1983a,
  Title                    = {{The constructivist researcher as teacher and model builder}},
  Author                   = {Cobb, P. and Steffe, L.},
  Journal                  = {Journal for Research in Mathematics Education},
  Year                     = {1983},
  Number                   = {2},
  Pages                    = {83--94},
  Volume                   = {14},

  File                     = {/home/huub/Documents/Research/main/Sources/Cobb1983a-The\_constructivist\_researcher\_as\_teacher\_and\_model\_builder.pdf},
  Keywords                 = {mathematics; constructivism; teaching experiment; teacher},
  Url                      = {http://www.jstor.org/stable/748576}
}

@Article{Cobb2001a,
  Title                    = {{Participating in classroom mathematical practices}},
  Author                   = {Cobb, P. and Stephan, M. and McClain, K. and Gravemeijer, K.},
  Journal                  = {Journal of the learning sciences},
  Year                     = {2001},
  Number                   = {1},
  Pages                    = {113--163},
  Volume                   = {10},

  File                     = {/home/huub/Documents/Research/main/Sources/Cobb2001a-Participating\_in\_classroom\_mathematical\_practices.pdf},
  Keywords                 = {mathematics; design research},
  Publisher                = {Routledge},
  Url                      = {http://aim.psch.uic.edu/documents/cobb\_p\_etal\_inpr.pdf}
}

@Article{Cobb1996b,
  Title                    = {{A method for conducting longitudinal analyses of classroom videorecordings and transcripts}},
  Author                   = {Cobb, P. and Whitenack, J.},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {1996},
  Number                   = {3},
  Pages                    = {213--228},
  Volume                   = {30},

  Doi                      = {10.1007/BF00304566},
  File                     = {/home/huub/Documents/Research/main/Sources/Cobb1996b-A\_method\_for\_conducting\_longitudinal\_analyses\_of\_classroom\_videorecordings\_and\_transcripts.pdf},
  ISSN                     = {0013-1954},
  Language                 = {English},
  Publisher                = {Kluwer Academic Publishers},
  Url                      = {http://dx.doi.org/10.1007/BF00304566}
}

@Article{Cobb1996a,
  Title                    = {{Constructivist, emergent, and sociocultural perspectives in the context of developmental research}},
  Author                   = {Cobb, P. and Yackel, E.},
  Journal                  = {Educational psychologist},
  Year                     = {1996},
  Number                   = {3},
  Pages                    = {175--190},
  Volume                   = {31},

  File                     = {/home/huub/Documents/Research/main/Sources/Cobb1996a-Constructivist\_Emergent\_and\_Sociocultural\_Perspectives\_in\_the\_Context\_of\_Developmental\_Research.pdf},
  Keywords                 = {constructivism; social-cultural; design research},
  Publisher                = {Routledge}
}

@Article{Cobb1992a,
  Title                    = {{A Constructivist Alternative to the Representational View of Mind in Mathematics Education}},
  Author                   = {Cobb, P. and Yackel, E. and Wood, T.},
  Journal                  = {Journal for Research in Mathematics Education},
  Year                     = {1992},

  Month                    = jan,
  Number                   = {1},
  Pages                    = {2--33},
  Volume                   = {23},

  File                     = {/home/huub/Documents/Research/main/Sources/Cobb1992a-A\_Constructivist\_Alternative\_to\_the\_Representational\_View\_of\_Mind\_in\_Mathematics\_Education.pdf},
  Keywords                 = {mathematics; constructivism}
}

@Article{Cobern1996a,
  Title                    = {{Worldview theory and conceptual change in science education}},
  Author                   = {Cobern, William W.},
  Journal                  = {Science Education},
  Year                     = {1996},
  Number                   = {5},
  Pages                    = {579--610},
  Volume                   = {80},

  File                     = {/home/huub/Documents/Research/main/Sources/Cobern1996a-Worldview\_theory\_and\_conceptual\_change\_in\_science\_education.pdf},
  Keywords                 = {conceptual change},
  Publisher                = {Salem, Mass.: WG Whitman, 1929-}
}

@Article{Cobo2013a,
  Title                    = {{Skills for innovation: envisioning an education that prepares for the changing world}},
  Author                   = {Cobo, C.},
  Journal                  = {Curriculum Journal},
  Year                     = {2013},
  Number                   = {1},
  Pages                    = {67--85},
  Volume                   = {24},

  Doi                      = {10.1080/09585176.2012.744330},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/09585176.2012.744330},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/09585176.2012.744330}
}

@TechReport{Cobo2009a,
  Title                    = {{Strategies to promote the development of e-competences in the next generation of professionals: European and International trends}},
  Author                   = {Cobo, Crist{\'o}bal},
  Year                     = {2009},

  Date                     = {November 1, 2009},
  File                     = {/home/huub/Documents/Research/main/Sources/Cobo2009a-Strategies\_to\_promote\_the\_development\_of\_e-competencies.pdf},
  Journal                  = {SKOPE Issues Paper Series}
}

@Article{Cohen2009a,
  Title                    = {{The Challenging Concept of Change Over Time}},
  Author                   = {Cohen, S.},

  Url                      = {http://www.historycooperative.org/journals/whc/6.2/cohen.html}
}

@InProceedings{Cole2014a,
  Title                    = {{Toward an argumentative grammar for socio-cultural/cultural-historical activity approaches to design research}},
  Author                   = {Cole, Michael and Engestr{\"o}m, Yrj{\"o} and Sannino, Annalisa and Guti{\'e}rrez, Kris and Jurow, Susan and Packer, Martin and Penuel, William R. and Johnson, Raymond and Severance, Samuel and Leary, Heather and Miller, Susan},
  Booktitle                = {{ICLS 2014 Proceedings}},
  Year                     = {2014},
  Pages                    = {1254--1263},

  Localfile                = {/home/huub/to-research/Sources/Cole2014a-Towards_an_argumentative_grammar_to_design_research.pdf},
  Url                      = {http://www.isls.org/icls2014/downloads/ICLS%202014%20Volume%203%20%28PDF%29-wCover.pdf}
}

@Article{Coll2005a,
  Title                    = {{The role of models and analogies in science education: implications from research}},
  Author                   = {Coll, Richard K. and France, Bev and Taylor, Ian},
  Journal                  = {International Journal of Science Education},
  Year                     = {2005},
  Number                   = {2},
  Pages                    = {183--198},
  Volume                   = {27},

  Doi                      = {10.1080/0950069042000276712},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/0950069042000276712},
  File                     = {/home/huub/Documents/Research/main/Sources/Coll2005a-The\_role\_of\_models\_and\_anaologies\_in\_science\_education.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/0950069042000276712}
}

@InCollection{Coll2011a,
  Title                    = {{Modeling and the Future of Science Learning}},
  Author                   = {Coll, Richard K. and Lajium, Denis},
  Booktitle                = {{Models and Modeling}},
  Publisher                = {Springer Netherlands},
  Year                     = {2011},
  Editor                   = {Khine, Myint Swe and Saleh, Issa M.},
  Pages                    = {3--21},
  Series                   = {{Models and Modeling in Science Education}},
  Volume                   = {6},

  Affiliation              = {Science and Engineering Faculty, University of Waikato, Hamilton, New Zealand},
  File                     = {/home/huub/Documents/Research/main/Sources/Coll2011a-Modelling\_and\_the\_future\_of\_science\_learning.pdf},
  ISBN                     = {978-94-007-0449-7},
  Keyword                  = {Humanities, Social Sciences and Law}
}

@InCollection{Collins1992a,
  Title                    = {{Towards a design science of education}},
  Author                   = {Collins, A.},
  Booktitle                = {{New directions in educational technology}},
  Publisher                = {Springer-Verlag},
  Year                     = {1992},

  Address                  = {Berlin},
  Editor                   = {Scalon, E. and O'Shea, T.},
  Pages                    = {15--22}
}

@TechReport{Collins1986a,
  Title                    = {{The Computer as a Tool for Learning through Reflection. Technical Report No. 376.}},
  Author                   = {Collins, A. and Brown, J.},
  Institution              = {Center for the Study of Reading},
  Year                     = {1986},

  File                     = {/home/huub/Documents/Research/main/Sources/Collins1986a-The\_computer\_as\_a\_tool\_for\_learning\_through\_reflection.pdf}
}

@Article{Collins1991a,
  Title                    = {{Cognitive apprenticeship: Making thinking visible}},
  Author                   = {Collins, A. and Brown, J. and Holum, A.},
  Journal                  = {American Educator},
  Year                     = {1991},
  Number                   = {3},
  Pages                    = {6--11},
  Volume                   = {15},

  Publisher                = {Citeseer}
}

@Article{Collins2010a,
  Title                    = {{The second educational revolution: rethinking education in the age of technology}},
  Author                   = {Collins, A. and Halverson, R.},
  Journal                  = {Journal of Computer Assisted Learning},
  Year                     = {2010},
  Number                   = {1},
  Pages                    = {18--27},
  Volume                   = {26},

  Doi                      = {10.1111/j.1365-2729.2009.00339.x},
  File                     = {/home/huub/Documents/Research/main/Sources/Collins2010a-The\_second\_educational\_revolution.pdf},
  ISSN                     = {1365-2729},
  Keywords                 = {computers and education; educational technology; future of education; history of education; life long learning; schools and technology},
  Url                      = {http://dx.doi.org/10.1111/j.1365-2729.2009.00339.x}
}

@Book{Collins2009a,
  Title                    = {{Rethinking education in the age of technology. The digital revolution and schooling in America}},
  Author                   = {Collins, A. and Halverson, R.},
  Publisher                = {Teachers College Press},
  Year                     = {2009},

  Address                  = {New York}
}

@Article{Collins2004a,
  Title                    = {{Design research: Theoretical and methodological issues}},
  Author                   = {Collins, A. and Joseph, D. and Bielaczyc, K.},
  Journal                  = {Journal of the Learning Sciences},
  Year                     = {2004},
  Number                   = {1},
  Pages                    = {15--42},
  Volume                   = {13},

  File                     = {/home/huub/Documents/Research/main/Sources/Collins2004a-Design\_research-Theoretical\_and\_methodological\_issues.pdf},
  Keywords                 = {design research},
  Publisher                = {Routledge},
  Url                      = {http://www.siumed.edu/dme/jc\_articles/Shin\_DesignResearch\_0217.pdf}
}

@InCollection{Confrey1994d,
  Title                    = {{Splitting, similarity, and rate of change: A new approach to multiplication and exponential functions}},
  Author                   = {Confrey, J.},
  Booktitle                = {{The development of multiplicative reasoning in the learning of mathematics}},
  Publisher                = {SUNY Press, Albany, NY},
  Year                     = {1994},
  Editor                   = {Harel, G. and Confrey, J.},
  Pages                    = {291--330}
}

@Article{Confrey1996a,
  Title                    = {{A critique of the selection of ``mathematical objects'' as a central metaphor for advanced mathematical thinking}},
  Author                   = {Confrey, J. and Costa, S.},
  Journal                  = {International journal of computers for mathematical learning},
  Year                     = {1996},
  Number                   = {2},
  Pages                    = {139--168},
  Volume                   = {1},

  File                     = {/home/huub/Documents/Research/main/Sources/Confrey1996a-A\_critique\_of\_the\_selection\_of\_mathematical\_objects.pdf},
  Keywords                 = {mathematics},
  Publisher                = {Springer},
  Url                      = {http://www.springerlink.com/content/j5867663g1gt2463/fulltext.pdf}
}

@InCollection{Confrey1994c,
  Title                    = {{Comments on James Kaput's Chapter}},
  Author                   = {Confrey, Jere and Smith, Erick},
  Booktitle                = {{Mathematical Thinking and Problem-Solving}},
  Publisher                = {Lawrence Erlbaum},
  Year                     = {1994},

  Address                  = {Hillsdale},
  Editor                   = {Schoenfeld, A.},
  Pages                    = {172--193},

  File                     = {/home/huub/Documents/Research/main/Sources/Confrey1994a-Exponential\_functions\_rates\_of\_change\_and\_the\_multiplicative\_unit.pdf}
}

@Article{Confrey1995a,
  Title                    = {{Splitting, covariation, and their role in the development of exponential functions}},
  Author                   = {Confrey, J. and Smith, E.},
  Journal                  = {Journal for Research in Mathematics Education},
  Year                     = {1995},
  Number                   = {1},
  Pages                    = {66--86},
  Volume                   = {26},

  File                     = {/home/huub/Documents/Research/main/Sources/Confrey1995a-Splitting\_covariation\_and\_their\_role\_in\_the\_development\_of\_exponentional\_functions.pdf},
  Keywords                 = {function; compound variable quantities}
}

@Article{Confrey1994b,
  Title                    = {{Exponential functions, rates of change, and the multiplicative unit}},
  Author                   = {Confrey, J. and Smith, E.},
  Journal                  = {Educational Studies in mathematics},
  Year                     = {1994},
  Number                   = {2},
  Pages                    = {135--164},
  Volume                   = {26},

  File                     = {/home/huub/Documents/Research/main/Sources/Confrey1994b-Exponential\_functions\_rates\_of\_change\_and\_the\_multiplicative\_unit.pdf},
  Keywords                 = {function; compound variable quantities; rate; table; secondary education},
  Publisher                = {Springer},
  Url                      = {http://www.jstor.org/stable/3482782}
}

@Article{Conlon2000a,
  Title                    = {{Visions of change: information technology, education and postmodernism}},
  Author                   = {Conlon, T.},
  Journal                  = {British Journal of Educational Technology},
  Year                     = {2000},
  Number                   = {2},
  Pages                    = {109--116},
  Volume                   = {31},

  Doi                      = {10.1111/1467-8535.00141},
  File                     = {/home/huub/Documents/Research/main/Sources/Conlon2000a-Visions\_of\_change-information\_technology\_education\_and\_postmodernism.pdf},
  ISSN                     = {1467-8535},
  Publisher                = {Blackwell Publishers Ltd},
  Url                      = {http://dx.doi.org/10.1111/1467-8535.00141}
}

@Book{Corbin2008a,
  Title                    = {{Basics of qualitative research: Techniques and procedures for developing grounded theory}},
  Author                   = {Corbin, Juliet and Strauss, Anselm},
  Publisher                = {Sage},
  Year                     = {2008},
  Edition                  = {3e},

  File                     = {/home/huub/Documents/Research/main/Sources/Corbin2008a-Basics\_of\_qualitative\_research-ch4-comparisons.pdf}
}

@InCollection{Cornu1991a,
  Title                    = {{Limits}},
  Author                   = {Cornu, B.},
  Booktitle                = {{Advanced Mathematical Thinking}},
  Publisher                = {Springer Netherlands},
  Year                     = {1991},
  Editor                   = {Tall, D.},
  Pages                    = {153--166},
  Series                   = {{Mathematics Education Library}},
  Volume                   = {11},

  File                     = {/home/huub/Documents/Research/main/Sources/Cornu1991a-Limits.pdf},
  ISBN                     = {978-0-306-47203-9},
  Keyword                  = {Education},
  Keywords                 = {mathematics},
  Url                      = {http://dx.doi.org/10.1007/0-306-47203-1_10}
}

@Article{Cottrill1996a,
  Title                    = {{Understanding the limit concept: Beginning with a coordinated process scheme}},
  Author                   = {Cottrill, J. and Dubinsky, E. and Nichols, D. and Schwingendorf, K. and Thomas, K. and Vidakovic, D.},
  Journal                  = {Journal of Mathematical Behavior},
  Year                     = {1996},
  Number                   = {2},
  Pages                    = {167--192},
  Volume                   = {15},

  File                     = {/home/huub/Documents/Research/main/Sources/Cottrill1996a-Understanding\_the\_limit\_concept.pdf},
  Keywords                 = {calculus; higher education; review},
  Url                      = {http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.49.7665&rep=rep1&type=pdf}
}

@TechReport{NRC2011a,
  Title                    = {{Report of a Workshop on the Pedagogical Aspects of Computational Thinking}},
  Author                   = {Council, Committee for the Workshops on Computational Thinking; National Research},
  Year                     = {2011},

  File                     = {/home/huub/Documents/Research/main/Sources/NRC2011a-Report\_of\_a\_workshop\_on\_the\_pedagogical\_aspects\_of\_computational\_thinking.pdf},
  ISBN                     = {9780309214742},
  Publisher                = {The National Academies Press},
  Url                      = {http://www.nap.edu/openbook.php?record_id=13170}
}

@TechReport{NRC2010a,
  Title                    = {{Report of a Workshop on The Scope and Nature of Computational Thinking}},
  Author                   = {Council, Committee for the Workshops on Computational Thinking; National Research},
  Year                     = {2010},

  File                     = {/home/huub/Documents/Research/main/Sources/NRC2010a-Report\_of\_a\_workshop\_on\_the\_scope\_and\_nature\_of\_computational\_thinking.pdf},
  ISBN                     = {9780309149570},
  Publisher                = {The National Academies Press},
  Url                      = {http://www.nap.edu/openbook.php?record_id=12840}
}

@InProceedings{Cox2008a,
  Title                    = {{Diagrams in the UK National School Curriculum}},
  Author                   = {Cox, G. and {Garcia Garcia}, Grecia},
  Booktitle                = {{Diagrammatic representation and inference: 5th international conference, Diagrams 2008, Herrsching, Germany, September 19-21, 2008: proceedings}},
  Year                     = {2008},
  Organization             = {Springer-Verlag New York Inc},
  Pages                    = {360--363},
  Volume                   = {5223},

  File                     = {/home/huub/Documents/Research/main/Sources/Cox2008a-Diagrams\_in\_the\_UK\_national\_school\_curriculum.pdf},
  Keywords                 = {graph; primary education}
}

@Article{Cox1999a,
  Title                    = {{Representation construction, externalised cognition and individual differences}},
  Author                   = {Cox, Richard},
  Journal                  = {Learning and Instruction},
  Year                     = {1999},
  Number                   = {4},
  Pages                    = {343--363},
  Volume                   = {9},

  Doi                      = {10.1016/S0959-4752(98)00051-6},
  File                     = {/home/huub/Documents/Research/main/Sources/Cox1999a-Representation\_construction\_externalised\_cognition\_and\_individual\_differences.pdf},
  ISSN                     = {0959-4752},
  Keywords                 = {External representations},
  Url                      = {http://www.sciencedirect.com/science/article/pii/S0959475298000516}
}

@Article{Cramer2001a,
  Title                    = {{Using models to build middle-grade students' understanding of functions}},
  Author                   = {Cramer, K.},
  Journal                  = {Mathematics Teaching in the Middle School},
  Year                     = {2001},
  Number                   = {1},
  Volume                   = {6},

  Keywords                 = {function; middle school},
  Url                      = {http://www.cehd.umn.edu/rationalnumberproject/01_1.html}
}

@Article{Cronin2009a,
  Title                    = {{Why don't well-educated adults understand accumulation? A challenge to researchers, educators, and citizens}},
  Author                   = {Cronin, Matthew A. and Gonzalez, Cleotilde and Sterman, John D.},
  Journal                  = {Organizational Behavior and Human Decision Processes},
  Year                     = {2009},
  Number                   = {1},
  Pages                    = {116--130},
  Volume                   = {108},

  Doi                      = {10.1016/j.obhdp.2008.03.003},
  File                     = {/home/huub/Documents/Research/main/Sources/Cronin2009a-Why\_dont\_well-educated\_adults\_understand\_accumulation.pdf},
  ISSN                     = {0749-5978},
  Url                      = {http://www.sciencedirect.com/science/article/pii/S0749597808000447}
}

@Article{Crook1998a,
  Title                    = {{Children as computer users: the case of collaborative learning}},
  Author                   = {Crook, C.},
  Journal                  = {Computers \& Education},
  Year                     = {1998},
  Number                   = {3-4},
  Pages                    = {237--247},
  Volume                   = {30},

  File                     = {/home/huub/Documents/Research/main/Sources/Crook1998a-Children\_as\_computer\_users-the\_case\_of\_collaborative\_learning.pdf}
}

@Article{Davis2003a,
  Title                    = {{Prompting Middle School Science Students for Productive Reflection: Generic and Directed Prompts}},
  Author                   = {Davis, E.},
  Journal                  = {Journal of the Learning Sciences},
  Year                     = {2003},
  Number                   = {1},
  Pages                    = {91--142},
  Volume                   = {12},

  Doi                      = {10.1207/S15327809JLS1201_4},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1207/S15327809JLS1201\_4},
  File                     = {/home/huub/Documents/Research/main/Sources/Davis2003a-Prompting\_middle\_school\_science\_students\_for\_productive\_reflection-generic\_and\_directed\_prompts.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1207/S15327809JLS1201_4}
}

@Article{Davis2000a,
  Title                    = {{Scaffolding students' knowledge integration: prompts for reflection in KIE}},
  Author                   = {Davis, E.},
  Journal                  = {International Journal of Science Education},
  Year                     = {2000},
  Number                   = {8},
  Pages                    = {819--837},
  Volume                   = {22},

  Doi                      = {10.1080/095006900412293},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/095006900412293},
  File                     = {/home/huub/Documents/Research/main/Sources/Davis2000a-Scaffolding\_students\_knowledge\_integration-prompts\_for\_reflection\_in\_KIE.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/095006900412293}
}

@Article{Davis2011a,
  Title                    = {{Reviewing the landscape of ICT and teacher education over 20 years and looking forward to the future}},
  Author                   = {Davis, N. and Loveless, A.},
  Journal                  = {Technology, Pedagogy and Education},
  Year                     = {2011},
  Number                   = {3},
  Pages                    = {247--261},
  Volume                   = {20},

  Doi                      = {10.1080/1475939X.2011.610928},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/1475939X.2011.610928},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/1475939X.2011.610928}
}

@Article{Davis1994a,
  Title                    = {{What mathematics should students learn?}},
  Author                   = {Davis, R.},
  Journal                  = {The Journal of Mathematical Behavior},
  Year                     = {1994},
  Number                   = {1},
  Pages                    = {3--33},
  Volume                   = {13},

  Doi                      = {10.1016/0732-3123(94)90031-0},
  File                     = {/home/huub/Documents/Research/main/Sources/Davis1994a-What\_Mathematics\_schould\_students\_learn.pdf},
  Keywords                 = {mathematics},
  Url                      = {http://www.sciencedirect.com/science/article/B6W5B-46976P5-3/2/66a69e8c6057e4416b2cc521d15f5b0d}
}

@Book{Dawson2004a,
  Title                    = {{Minds and machines. Connectionism and psychological modeling}},
  Author                   = {Dawson, Michael R. W.},
  Publisher                = {Blakwell Publishing},
  Year                     = {2004}
}

@Article{Wever2006a,
  Title                    = {{Content analysis schemes to analyze transcripts of online asynchronous discussion groups: A review}},
  Author                   = {{De Wever}, B. and Schellens, T. and Valcke, M. and {Van Keer}, H.},
  Journal                  = {Computers \& Education},
  Year                     = {2006},
  Number                   = {1},
  Pages                    = {6--28},
  Volume                   = {46},

  File                     = {/home/huub/Documents/Research/main/Sources/Wever2006a-Content\_analysis\_schemes\_to\_analyze\_transcripts\_of\_online\_asynchronous\_discussion\_groups.pdf},
  Publisher                = {Elsevier}
}

@Article{DeBoer2000a,
  Title                    = {{Scientific literacy: Another look at its historical and contemporary meanings and its relationship to science education reform}},
  Author                   = {DeBoer, George E},
  Journal                  = {Journal of research in science teaching},
  Year                     = {2000},
  Number                   = {6},
  Pages                    = {582--601},
  Volume                   = {37},

  File                     = {/home/huub/Documents/Research/main/Sources/DeBoer2000a-Scientific\_literacy-Another\_look\_at\_its\_historical\_and\_contemporary\_meanings.pdf}
}

@InCollection{Dede2008a,
  Title                    = {{Theoretical Perspectives Influencing the Use of Information Technology in Teaching and Learning}},
  Author                   = {Dede, C.},
  Booktitle                = {{International Handbook of Information Technology in Primary and Secondary Education}},
  Publisher                = {Springer US},
  Year                     = {2008},
  Editor                   = {Voogt, J. and Knezek, G.},
  Pages                    = {43--62},
  Series                   = {{Springer International Handbook of Information Technology in Primary and Secondary Education}},
  Volume                   = {20},

  Doi                      = {10.1007/978-0-387-73315-9_3},
  File                     = {/home/huub/Documents/Research/main/Sources/Dede2008a-Theoretical\_perspectives\_influencing\_the\_use\_of\_IT\_in\_teaching\_and\_learning.pdf},
  ISBN                     = {978-0-387-73314-2},
  Url                      = {http://dx.doi.org/10.1007/978-0-387-73315-9_3}
}

@Article{Dede2010a,
  Title                    = {{Comparing frameworks for 21st century skills}},
  Author                   = {Dede, C.},
  Journal                  = {21st century skills: Rethinking how students learn},
  Year                     = {2010},
  Pages                    = {51--76},

  File                     = {/home/huub/Documents/Research/main/Sources/Dede2010a-Comparing\_frameworks\_for\_21st\_century\_skills.pdf}
}

@InProceedings{Dede2005a,
  Title                    = {{Planning for ``neomillennial'' learning styles: Implications for investments in technology and faculty}},
  Author                   = {Dede, C.},
  Booktitle                = {{In}},
  Year                     = {2005},
  Pages                    = {226--247},
  Publisher                = {EDUCAUSE Publishers},

  File                     = {/home/huub/Documents/Research/main/Sources/Dede2005a-Planning\_for\_neomillennial\_learning\_styles.pdf}
}

@Article{Dede2004a,
  Title                    = {{Commentaries: If Design-Based Research is the Answer, What is the Question? A Commentary on Collins, Joseph, and Bielaczyc; diSessa and Cobb; and Fishman, Marx, Blumenthal, Krajcik, and Soloway in the JLS Special Issue on Design-Based Research}},
  Author                   = {Dede, C.},
  Journal                  = {Journal of the Learning Sciences},
  Year                     = {2004},
  Number                   = {1},
  Pages                    = {105--114},
  Volume                   = {13},

  File                     = {/home/huub/Documents/Research/main/Sources/Dede2004a-If\_design-based\_research\_is\_the\_answer\_what\_is\_the\_question.pdf},
  Keywords                 = {design research},
  Publisher                = {Routledge},
  Url                      = {http://inkido.indiana.edu/design/dede.doc}
}

@Article{Dede2000a,
  Title                    = {{Emerging influences of information technology on school curriculum}},
  Author                   = {Dede, C.},
  Journal                  = {Journal of Curriculum Studies},
  Year                     = {2000},
  Number                   = {2},
  Pages                    = {281--303},
  Volume                   = {32},

  Doi                      = {10.1080/002202700182763},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/002202700182763},
  File                     = {/home/huub/Documents/Research/main/Sources/Dede2000a-Emerging\_influences\_of\_information\_technology\_on\_school\_curriculum.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/002202700182763}
}

@Article{DeHart1998a,
  Title                    = {{Scientific literacy: New minds for a changing world}},
  Author                   = {{DeHart Hurd}, P.},
  Journal                  = {Science education},
  Year                     = {1998},
  Number                   = {3},
  Pages                    = {407--416},
  Volume                   = {82},

  File                     = {/home/huub/Documents/Research/main/Sources/DeHart1998a-Scientific\_literacy-new\_minds\_for\_a\_changing\_world.pdf}
}

@Article{Dekker1998a,
  Title                    = {{A process model for interaction and mathematical level raising}},
  Author                   = {Dekker, R. and Elshout-Mohr, M.},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {1998},
  Number                   = {3},
  Pages                    = {303--314},
  Volume                   = {35},

  File                     = {/home/huub/Documents/Research/main/Sources/Dekker1998a-A\_process\_model\_for\_interaction\_and\_mathematical\_level\_raising.pdf}
}

@Article{Dykstra2009a,
  Title                    = {{Conceptual development about motion and force in elementary and middle school students}},
  Author                   = {{Dewey I. Dykstra}, Jr. and Sweet, Dale R.},
  Journal                  = {American Journal of Physics},
  Year                     = {2009},
  Number                   = {5},
  Pages                    = {468--476},
  Volume                   = {77},

  Doi                      = {10.1119/1.3090824},
  File                     = {/home/huub/Documents/Research/main/Sources/Dykstra2009a-Conceptual\_development\_about\_motion\_and\_force\_in\_elementary\_and\_middle\_school\_students.pdf},
  Keywords                 = {force; physics education; student experiments},
  Publisher                = {AAPT},
  Url                      = {http://link.aip.org/link/?AJP/77/468/1}
}

@Article{Dierdorp2011a,
  Title                    = {{Authentic Practices as Contexts for Learning to Draw Inferences Beyond Correlated Data}},
  Author                   = {Dierdorp, Adri and Bakker, Arthur and Eijkelhof, Harrie and van Maanen, Jan},
  Journal                  = {Mathematical Thinking and Learning},
  Year                     = {2011},
  Number                   = {1-2},
  Pages                    = {132--151},
  Volume                   = {13},

  Doi                      = {10.1080/10986065.2011.538294},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/10986065.2011.538294},
  File                     = {/home/huub/Documents/Research/main/Sources/Dierdorp2011a-Authentic\_practices\_as\_contexts\_for\_learning\_to\_draw\_inferences\_beyond\_correlated\_data.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/10986065.2011.538294}
}

@Book{Dijksterhuis1950a,
  Title                    = {{De mechanisering van het wereldbeeld}},
  Author                   = {Dijksterhuis, E.J.},
  Publisher                = {J.M. Meulenhoff},
  Year                     = {1950},

  Keywords                 = {mathematics; science; history}
}

@InCollection{Dillenbourg1999a,
  Title                    = {{What do you mean by collaborative learning?}},
  Author                   = {Dillenbourg, P.},
  Booktitle                = {{Collaborative-learning: Cognitive and computational approaches.}},
  Publisher                = {Elsevier},
  Year                     = {1999},

  Address                  = {Oxford},
  Editor                   = {Dillenbourg, P.},
  Pages                    = {1--19},

  File                     = {/home/huub/Documents/Research/main/Sources/Dillenbourg1999a-What\_do\_you\_mean\_by\_collaborative\_learning.pdf}
}

@Article{Dillenbourg2008a,
  Title                    = {{The mechanics of CSCL macro scripts}},
  Author                   = {Dillenbourg, P. and Hong, F.},
  Journal                  = {International Journal of Computer-Supported Collaborative Learning},
  Year                     = {2008},
  Number                   = {1},
  Pages                    = {5--23},
  Volume                   = {3},

  File                     = {/home/huub/Documents/Research/main/Sources/Dillenbourg2008a-The\_mechanics\_of\_CSCL\_macro\_scripts.pdf},
  Publisher                = {Springer}
}

@InProceedings{Doerr1995a,
  Title                    = {{An Integrated Approach to Mathematical Modeling: A Classroom Study.}},
  Author                   = {Doerr, H.M.},
  Booktitle                = {{Annual Meeting of the American Educational Research Association, April 18, 1995, San Francisco, Ca}},
  Year                     = {1995},

  Date                     = {18 April 1995},
  File                     = {/home/huub/Documents/Research/main/Sources/Doerr1995a-An\_integrated\_approach\_to\_mathematical\_modeling.pdf},
  Keywords                 = {modeling},
  Url                      = {http://eric.ed.gov/PDFS/ED387349.pdf}
}

@InCollection{Dooren2012a,
  Title                    = {{How Students Connect Descriptions of Real-World Situations to Mathematical Models in Different Representational Modes}},
  Author                   = {van Dooren, Wim and de Bock, Dirk and Verschaffel, Lieven},
  Booktitle                = {{Teaching Mathematical Modelling: Connecting to Research and Practice}},
  Publisher                = {Springer Netherlands},
  Year                     = {2013},
  Editor                   = {Stillman, Gloria Ann and Kaiser, Gabriele and Blum, Werner and Brown, Jill P.},
  Pages                    = {385--393},
  Series                   = {{International Perspectives on the Teaching and Learning of Mathematical Modelling}},

  Doi                      = {10.1007/978-94-007-6540-5_32},
  File                     = {/home/huub/Documents/Research/main/Sources/Dooren2012a-How\_students\_connect\_descriptions\_of\_real\_world\_situations\_to\_mathematical\_models\_in\_different\_representational\_modes.pdf},
  ISBN                     = {978-94-007-6539-9},
  Language                 = {English},
  Url                      = {http://dx.doi.org/10.1007/978-94-007-6540-5_32}
}

@PhdThesis{Doorman2005a,
  Title                    = {{Modelling motion: from trace graphs to instantaneous change}},
  Author                   = {Doorman, M.},
  School                   = {Utrecht University},
  Year                     = {2005},

  Address                  = {the Netherlands},

  File                     = {/home/huub/Documents/Research/main/Sources/Doorman2005a-Modelling\_motion-from\_trace\_graphs\_to\_instantaneous\_change.pdf},
  Keywords                 = {motion domain; history; secondary education; design research; mathematics; calculus; graph; ict}
}

@Article{Doorman2003a,
  Title                    = {{Inzicht in snelheid en afgelegde weg via grafieken}},
  Author                   = {Doorman, M.},
  Journal                  = {Tijdschrift voor didactiek der b{\`e}ta-wetenschappen},
  Year                     = {2003},
  Number                   = {1},
  Pages                    = {1--25},
  Volume                   = {20},

  File                     = {/home/huub/Documents/Research/main/Sources/Doorman2003a-Inzicht\_in\_snelheid\_en\_afgelegde\_weg\_via\_grafieken.pdf},
  Keywords                 = {graph; motion domain; ict},
  Url                      = {http://www1.phys.uu.nl/wwwcdb/tdb/fulltext/Doorman_2003.pdf}
}

@Article{Doorman2012a,
  Title                    = {{Tool use and the development of the function concept: from repeated calculations to functional thinking}},
  Author                   = {Doorman, M. and Drijvers, P. and Gravemeijer, K. and Boon, P. and Reed, H.},
  Journal                  = {International Journal of Science and Mathematics Education},
  Year                     = {2012},
  Number                   = {6},
  Pages                    = {1243--1267},
  Volume                   = {10}
}

@Article{Doorman2009a,
  Title                    = {{Emergent modeling: discrete graphs to support the understanding of change and velocity}},
  Author                   = {Doorman, M. and Gravemeijer, K.},
  Journal                  = {ZDM Mathematics Education},
  Year                     = {2009},
  Pages                    = {199--211},
  Volume                   = {41},

  File                     = {/home/huub/Documents/Research/main/Sources/Doorman2009a-Emergent\_modeling-discrete\_graphs\_to\_support\_the\_understanding\_of\_change\_and\_velocity.pdf},
  Keywords                 = {compound variable quantities; design research; secondary education; graph}
}

@Article{Doorman2008a,
  Title                    = {{A Historical Perspective on Teaching and Learning Calculus.}},
  Author                   = {Doorman, M. and van Maanen, J.},
  Journal                  = {Australian Senior Mathematics Journal},
  Year                     = {2008},
  Number                   = {2},
  Pages                    = {4--14},
  Volume                   = {22},

  File                     = {/home/huub/Documents/Research/main/Sources/Doorman2008a-A\_historical\_perspective\_on\_teaching\_and\_learning\_calculus.pdf}
}

@Article{Dorst2011a,
  Title                    = {{The core of {\lq}design thinking{\rq} and its application}},
  Author                   = {Dorst, Kees},
  Journal                  = {Design Studies},
  Year                     = {2011},
  Note                     = {Interpreting Design Thinking},
  Number                   = {6},
  Pages                    = {521--532},
  Volume                   = {32},

  Abstract                 = {In the last few years, ``Design Thinking'' has gained popularity -- it is now seen as an exciting new paradigm for dealing with problems in sectors as far a field as IT, Business, Education and Medicine. This potential success challenges the design research community to provide unambiguous answers to two key questions: ``What is the core of Design Thinking?'' and ``What could it bring to practitioners and organisations in other fields?''. We sketch a partial answer by considering the fundamental reasoning pattern behind design, and then looking at the core design practices of framing and frame creation. The paper ends with an exploration of the way in which these core design practices can be adopted for organisational problem solving and innovation.},
  Doi                      = {10.1016/j.destud.2011.07.006},
  ISSN                     = {0142-694X},
  Keywords                 = {reasoning; framing; problem solving; design practice},
  Localfile                = {/home/huub/Documents/Research/main/Sources/Dorst2011a-The_core_of_design_thinking_and_its_application.pdf},
  Url                      = {http://www.sciencedirect.com/science/article/pii/S0142694X11000603}
}

@Conference{Dragon2007a,
  Title                    = {{Understanding and advising students from within an inquiry tutor}},
  Author                   = {Dragon, Toby and Woolf, {Beverly Park}},
  Booktitle                = {{Workshop of Emerging Technologies for Inquiry-Based Learning in Science.}},
  Year                     = {2007},
  Pages                    = {61--74},

  File                     = {/home/huub/Documents/Research/main/Sources/Dragon2007a-Understanding\_and\_advising\_students\_from\_within\_an\_inquiry\_tutor.pdf},
  Keywords                 = {ict}
}

@Article{Driel2002a,
  Title                    = {{Experienced teachers' knowledge of teaching and learning of models and modelling in science education}},
  Author                   = {van Driel, J.H. and Verloop, N.},
  Journal                  = {International Journal of Science Education},
  Year                     = {2002},
  Number                   = {12},
  Pages                    = {1255--1272},
  Volume                   = {24},

  File                     = {/home/huub/Documents/Research/main/Sources/Driel2002a-Experienced\_teachers\_knowledge\_of\_teaching\_and\_learning\_of\_models\_and\_modelling\_in\_science\_education.pdf}
}

@Article{Drijvers2010a,
  Title                    = {{Integrating technology into mathematics education: Theoretical perspectives}},
  Author                   = {Drijvers, P. and Kieran, C. and Mariotti, M.A. and Ainley, J. and Andresen, M. and Chan, Y.C. and Dana-Picard, T. and Gueudet, G. and Kidron, I. and Leung, A. and others},
  Journal                  = {Mathematics Education and Technology-Rethinking the Terrain},
  Year                     = {2010},
  Pages                    = {89--132},

  File                     = {/home/huub/Documents/Research/main/Sources/Drijvers2010a-Integrating\_technology\_into\_mathematics\_education-Theoretical\_perspective.doc},
  Keywords                 = {ict; mathematics},
  Publisher                = {Springer}
}

@Article{Dubinsky2000a,
  Title                    = {{Mathematical literacy and abstraction in the 21st century}},
  Author                   = {Dubinksy, E.},
  Journal                  = {School Science and Mathematics},
  Year                     = {2000},
  Number                   = {6},
  Pages                    = {289--297},
  Volume                   = {100},

  File                     = {/home/huub/Documents/Research/main/Sources/Dubinsky2000a-Mathematical\_literacy\_and\_abstraction\_in\_the\_21st\_century.pdf},
  Keywords                 = {mathematics; theory; higher education},
  Publisher                = {Wiley Online Library},
  Url                      = {http://www.math.kent.edu/~edd/NiessPaper.pdf}
}

@InCollection{Dubinsky1994a,
  Title                    = {{Comments on James Kaput's Chapter}},
  Author                   = {Dubinsky, Ed},
  Booktitle                = {{Mathematical Thinking and Problem-Solving}},
  Publisher                = {Lawrence Erlbaum},
  Year                     = {1994},

  Address                  = {Hillsdale},
  Editor                   = {Schoenfeld, A.},
  Pages                    = {157--171}
}

@InCollection{Dubinsky1991a,
  Title                    = {{Reflective abstraction in advanced mathematical thinking}},
  Author                   = {Dubinsky, E.},
  Booktitle                = {{Advanced mathematical thinking}},
  Publisher                = {Springer},
  Year                     = {1991},
  Note                     = {Pre-published version on-line: caution when citing},
  Pages                    = {95--126},

  File                     = {/home/huub/Documents/Research/main/Sources/Dubinsky1991a-Reflective\_abstraction\_in\_advanced\_mathematical\_thinking.pdf},
  Url                      = {http://www.math.wisc.edu/~wilson/Courses/Math903/ReflectiveAbstraction.pdf}
}

@Article{Duffin2000a,
  Title                    = {{A search for understanding}},
  Author                   = {Duffin, J.M. and Simpson, A.P.},
  Journal                  = {The Journal of Mathematical Behavior},
  Year                     = {2000},
  Number                   = {4},
  Pages                    = {415--427},
  Volume                   = {18},

  File                     = {/home/huub/Documents/Research/main/Sources/Duffin2000a-A\_search\_for\_understanding.pdf},
  Keywords                 = {mathematics},
  Publisher                = {Elsevier}
}

@Article{Duit1991a,
  Title                    = {{On the role of analogies and metaphors in learning science}},
  Author                   = {Duit, R.},
  Journal                  = {Science Education},
  Year                     = {1991},
  Number                   = {6},
  Pages                    = {649--672},
  Volume                   = {75},

  File                     = {/home/huub/Documents/Research/main/Sources/Duit1991a-On\_the\_role\_of\_analogies\_and\_metaphors\_in\_learning\_science.pdf}
}

@Article{Duit2003a,
  Title                    = {{Conceptual change: a powerful framework for improving science teaching and learning}},
  Author                   = {Duit, R. and Treagust, D.F.},
  Journal                  = {International Journal of Science Education},
  Year                     = {2003},
  Number                   = {6},
  Pages                    = {671--688},
  Volume                   = {25},

  File                     = {/home/huub/Documents/Research/main/Sources/Duit2003a-Conceptual\_change.pdf}
}

@Article{Ebersbach2010a,
  Title                    = {{Discriminating Non-linearity from Linearity: Its Cognitive Foundations in Five-Year-Olds}},
  Author                   = {Ebersbach, M. and {Van Dooren}, W. and Goudriaan, M. and Verschaffel, L.},
  Journal                  = {Mathematical Thinking and Learning},
  Year                     = {2010},
  Number                   = {1},
  Pages                    = {4--19},
  Volume                   = {12},

  File                     = {/home/huub/Documents/Research/main/Sources/Ebersbach2010a-Discriminating\_non-linearity\_form\_linearity.pdf}
}

@Article{Ebersbach2011a,
  Title                    = {{Knowledge on accelerated motion as measured by implicit and explicit tasks in 5 to 16 year olds}},
  Author                   = {Ebersbach, M. and {Van Dooren}, W. and Verschaffel, L.},
  Journal                  = {International Journal of Science and Mathematics Education},
  Year                     = {2011},
  Note                     = {10.1007/s10763-010-9208-5},
  Pages                    = {25--46},
  Volume                   = {9},

  Affiliation              = {Martin-Luther-University of Halle--Wittenberg, Institut fuer Psychologie, 06099 Halle (S.), Germany},
  File                     = {/home/huub/Documents/Research/main/Sources/Ebersbach2011a-Knowledge\_on\_accelerated\_motion\_as\_measured\_by\_implicit\_and\_explicit\_tasks\_in\_5\_to\_16\_year\_olds.pdf},
  ISSN                     = {1571-0068},
  Keywords                 = {motion domain; primary education; secondary education; linearity},
  Publisher                = {Springer Netherlands},
  Url                      = {http://dx.doi.org/10.1007/s10763-010-9208-5}
}

@Article{Ebersbach2007a,
  Title                    = {{Children's Intuitive Mathematics: The Development of Knowledge About Nonlinear Growth}},
  Author                   = {Ebersbach, M. and Wilkening, F.},
  Journal                  = {Child development},
  Year                     = {2007},
  Number                   = {1},
  Pages                    = {296--308},
  Volume                   = {78},

  File                     = {/home/huub/Documents/Research/main/Sources/Ebersbach2007a-Childrens\_intuitive\_mathematics.pdf}
}

@Article{Edge2005a,
  Title                    = {{Mathematics education research: designing, implementing and concluding}},
  Author                   = {Edge, D.},
  Journal                  = {The Mathematics Educator},
  Year                     = {2005},
  Number                   = {1},
  Pages                    = {1--11},
  Volume                   = {9},

  File                     = {/home/huub/Documents/Research/main/Sources/Edge2005a-Mathematics\_education\_research-Designing\_implementing\_and\_concluding.pdf},
  Keywords                 = {mathematics}
}

@InCollection{Edgerton1985a,
  Title                    = {{The renaissance development of the scientific illustration}},
  Author                   = {Edgerton, S.},
  Booktitle                = {{Science and the arts in the renaissance}},
  Publisher                = {Associated University Press},
  Year                     = {1985},
  Editor                   = {Shirley, John W. and Hoenger, F. David},
  Pages                    = {168--197},

  File                     = {/home/huub/Documents/Research/main/Sources/Edgerton1985a-The\_renaissance\_development\_of\_the\_scientific\_illustration.pdf},
  Journal                  = {Science and the arts in the renaissance},
  Keywords                 = {history; representation},
  Url                      = {http://faculty.winthrop.edu/kosterj/scholarly/ARTH480/edgerton.pdf}
}

@InCollection{Edwards1995a,
  Title                    = {{Microworlds as representations}},
  Author                   = {Edwards, L.D.},
  Booktitle                = {{Computers and exploratory learning}},
  Publisher                = {Springer},
  Year                     = {1995},
  Editor                   = {diSessa, Andrea A. and Hoyles, Celia and Noss, Richard and Edwards, Laurie D.},
  Pages                    = {127--154},

  File                     = {/home/huub/Documents/Research/main/Sources/Edwards1995a-Microworlds\_as\_representations.pdf},
  Keywords                 = {ict; programming; modeling; microworld; theory}
}

@Article{Edwards1998a,
  Title                    = {{Embodying mathematics and science: Microworlds as representations}},
  Author                   = {Edwards, L.D.},
  Journal                  = {The Journal of Mathematical Behavior},
  Year                     = {1998},
  Number                   = {1},
  Pages                    = {53--78},
  Volume                   = {17},

  File                     = {/home/huub/Documents/Research/main/Sources/Edwards1998a-Embodying\_mathematics\_and\_science-Microworlds\_as\_representations.pdf},
  Keywords                 = {ict; microworld; mathematics}
}

@InProceedings{Eerde2013a,
  Title                    = {{Design research: Looking in to the heart of mathematics education}},
  Author                   = {van Eerde, H.},
  Booktitle                = {{Proceeding of the first Southeast Asian Design/Development Research Conference}},
  Year                     = {2013},
  Editor                   = {Zulkardi},
  Pages                    = {1--10},
  Publisher                = {Sriwijaya university},

  File                     = {/home/huub/Documents/Research/main/Sources/Eerde2013a-Design\_research-looking\_into\_the\_heart\_of\_mathematics\_education.pdf}
}

@Article{Eijck2010a,
  Title                    = {{Theorizing scientific literacy in the wild}},
  Author                   = {van Eijck, M. and Roth, W.},
  Journal                  = {Educational Research Review},
  Year                     = {2010},
  Number                   = {2},
  Pages                    = {184--194},
  Volume                   = {5},

  Doi                      = {10.1016/j.edurev.2010.03.002},
  File                     = {/home/huub/Documents/Research/main/Sources/Eijck2010a-Theorizing\_scientific\_literacy\_in\_the\_wild.pdf},
  Keywords                 = {science; situated cognition; review},
  Publisher                = {Elsevier},
  Url                      = {http://www.sciencedirect.com/science/article/B7XNV-4YRXDBF-1/2/991101b763a899df8bd161162c4917f3}
}

@InCollection{Eisenberg1995a,
  Title                    = {{Creating software applications for children: Some thoughts about design}},
  Author                   = {Eisenberg, M.},
  Booktitle                = {{Computers and Exploratory Learning}},
  Publisher                = {Springer},
  Year                     = {1995},
  Editor                   = {diSessa, Andrea A. and Hoyles, Celia and Noss, Richard and Edwards, Laurie D.},
  Pages                    = {175--196},

  File                     = {/home/huub/Documents/Research/main/Sources/Eisenberg1995a-Creating\_software\_applications\_for\_children.pdf},
  Keywords                 = {ict; programming; microworld}
}

@Article{Elby2000a,
  Title                    = {{What students' learning of representations tells us about constructivism}},
  Author                   = {Elby, A.},
  Journal                  = {The Journal of Mathematical Behavior},
  Year                     = {2000},
  Number                   = {4},
  Pages                    = {481--502},
  Volume                   = {19},

  File                     = {/home/huub/Documents/Research/main/Sources/Elby2000a-What\_students\_learning\_of\_representations\_tells\_us\_about\_constructivism.pdf}
}

@Article{Elia2007a,
  Title                    = {{Relations between secondary pupils{\rq} conceptions about functions and problem solving in different representations}},
  Author                   = {Elia, I. and Panaoura, A. and Eracleous, A. and Gagatsis, A.},
  Journal                  = {International Journal of Science and Mathematics Education},
  Year                     = {2007},
  Number                   = {3},
  Pages                    = {533--556},
  Volume                   = {5},

  File                     = {/home/huub/Documents/Research/main/Sources/Elia2007a-Relations\_between\_secondary\_pupils\_conceptions\_about\_functions.pdf},
  Keywords                 = {function; representation; secondary education},
  Publisher                = {Springer},
  Url                      = {http://www.springerlink.com/content/xqu7p752m8552434/fulltext.pdf}
}

@Article{Ellis2010a,
  Title                    = {{Autoethnography: An Overview}},
  Author                   = {Ellis, Carolyn and Adams, Tony and Bochner, Arthur},
  Journal                  = {Forum Qualitative Sozialforschung / Forum: Qualitative Social Research},
  Year                     = {2010},
  Number                   = {1},
  Volume                   = {12},

  Abstract                 = {Autoethnography is an approach to research and writing that seeks to describe and systematically analyze personal experience in order to understand cultural experience. This approach challenges canonical ways of doing research and representing others and treats research as a political, socially-just and socially-conscious act. A researcher uses tenets of autobiography and ethnography to do and write autoethnography. Thus, as a method, autoethnography is both process and product. URN: http://nbn-resolving.de/urn:nbn:de:0114-fqs1101108},
  File                     = {/home/huub/Documents/Research/main/Sources/Ellis2010a-Autoethnography-an\_overview.pdf},
  ISSN                     = {1438-5627},
  Keywords                 = {autoethnography; relational ethics; co-constructed narratives; interactive interviews; narrative; ethnography; personal narrative; narrative ethnographies},
  Url                      = {http://www.qualitative-research.net/index.php/fqs/article/view/1589}
}

@InCollection{Ellis2000a,
  Title                    = {{Autoethnography, personal narrative, reflexivity: Researcher as subject}},
  Author                   = {Ellis, C. and Bochner, A.},
  Booktitle                = {{The Handbook of Qualitative Research}},
  Publisher                = {Sage},
  Year                     = {2000},
  Editor                   = {Denzin, N. and Lincoln, Y.},
  Pages                    = {733--768},

  File                     = {/home/huub/Documents/Research/main/Sources/Ellis2000a-Autoethnography\_personal\_narrative\_reflexivity.pdf}
}

@Article{Eng2005a,
  Title                    = {{The impact of ICT on learning: A review of research}},
  Author                   = {Eng, T.S.},
  Journal                  = {International Education Journal Vol 6, No 5, 2005 i},
  Year                     = {2005},
  Number                   = {5},
  Pages                    = {635--650},
  Volume                   = {6},

  File                     = {/home/huub/Documents/Research/main/Sources/Eng2005a-The\_impact\_of\_ICT\_on\_learning\_a\_review\_of\_research.pdf},
  ISSN                     = {1443-1475},
  Keywords                 = {ict},
  Url                      = {http://www.eric.ed.gov/PDFS/EJ855017.pdf}
}

@InProceedings{Engelhardt2004a,
  Title                    = {{The Teaching Experiment -- What it is and what it isn't}},
  Author                   = {Engelhardt, P.V. and Corpuz, E.G. and Ozimek, D.J. and Rebello, N.S.},
  Booktitle                = {{2003 Physics Education Research Conference}},
  Year                     = {2004},
  Organization             = {American Institute of Physics, 2 Huntington Quadrangle, Suite 1 NO 1, Melville, NY, 11747-4502, USA,},
  Pages                    = {157--160},
  Volume                   = {720},

  File                     = {/home/huub/Documents/Research/main/Sources/Engelhardt2004a-The\_teaching\_experiment-What\_it\_is\_and\_what\_it\_isnt.pdf},
  ISBN                     = {0735402000},
  ISSN                     = {0094-243X},
  Keywords                 = {teaching experiment}
}

@Article{Ergazaki2005a,
  Title                    = {{High-school students{\rq} reasoning while constructing plant growth models in a computer-supported educational environment}},
  Author                   = {Ergazaki, M. and Komis, V. and Zogza, V.},
  Journal                  = {International journal of science education},
  Year                     = {2005},
  Number                   = {8},
  Pages                    = {909--933},
  Volume                   = {27},

  File                     = {/home/huub/Documents/Research/main/Sources/Ergazaki2005a-High-school\_students\_reasoning\_while\_constructing\_plant\_growth\_models.pdf}
}

@InCollection{Ernest2010a,
  Title                    = {{Commentary 2 on Reflections on Theories of Learning}},
  Author                   = {Ernest, Paul},
  Booktitle                = {{Theories of Mathematics Education}},
  Publisher                = {Springer Berlin Heidelberg},
  Year                     = {2010},
  Editor                   = {Sriraman, Bharath and English, Lyn},
  Note                     = {10.1007/978-3-642-00742-2\_6},
  Pages                    = {53--61},
  Series                   = {{Advances in Mathematics Education}},

  Affiliation              = {University of Exeter, Exeter, UK},
  File                     = {/home/huub/Documents/Research/main/Sources/Ernest2010a-Commentary\_2\_on\_reflections\_on\_theories\_of\_learning.pdf},
  ISBN                     = {978-3-642-00742-2},
  Keyword                  = {Education},
  Keywords                 = {theory; learning},
  Url                      = {http://dx.doi.org/10.1007/978-3-642-00742-2_6}
}

@Article{Ernest2006a,
  Title                    = {{Reflections on theories of learning}},
  Author                   = {Ernest, P.},
  Journal                  = {ZDM},
  Year                     = {2006},
  Number                   = {1},
  Pages                    = {3--7},
  Volume                   = {38},

  File                     = {/home/huub/Documents/Research/main/Sources/Ernest2006a-Reflections\_on\_theories\_of\_learning.pdf},
  ISSN                     = {1863-9690},
  Keywords                 = {learning; theory; constructivism; social constructivism},
  Publisher                = {Springer}
}

@InProceedings{Estrada2006a,
  Title                    = {{Understanding the relation between accumulation and its rate of change in a computational environment through simulation of dynamic situations}},
  Author                   = {Estrada-Medina, Juan and Arenas-S{\'a}nchez, Enrique},
  Booktitle                = {{Proceedings of the 28th annual meeting of the North American Chapter of the International Group for the Psychology of mathematics Education}},
  Year                     = {2006},
  Pages                    = {850--855},
  Volume                   = {2},

  File                     = {/home/huub/Documents/Research/main/Sources/Estrada2006a-Understanding\_the\_relation\_between\_accumulation\_and\_its\_rate\_of\_change.pdf},
  Keywords                 = {ict; calculus; alternative domain; higher education},
  Url                      = {http://www.pmena.org/2006/cd/TECHNOLOGY/TECHNOLOGY-0000.pdf}
}

@Electronic{Fagan2002a,
  Title                    = {{A summary of the research on student graphing misconceptions and their roots}},
  Author                   = {Fagan, Emily R.},
  Organization             = {PBS},
  Url                      = {http://www2.edc.org/edc-research/curriki/ROLE/lc/sessions/session6/MisconOnGraphs.pdf},
  Year                     = {2002},

  File                     = {/home/huub/Documents/Research/main/Sources/Fagan2002a-A\_summary\_of\_the\_research\_on\_student\_graphing\_misconceptions\_and\_their\_roots.pdf},
  Keywords                 = {graph}
}

@InCollection{Falbel1991a,
  Title                    = {{The computer as a convivial tool}},
  Author                   = {Falbel, Aaron},
  Booktitle                = {{Constructionism}},
  Year                     = {1991},
  Editor                   = {Harel, Idit and Papert, Seymour},
  Pages                    = {29--37},

  File                     = {/home/huub/Documents/Research/main/Sources/Falbel1991a-The\_computer\_as\_a\_convivial\_tool.pdf}
}

@Book{Fann1970a,
  Title                    = {{Peirce's theory of abduction}},
  Author                   = {Fann, K.T.},
  Publisher                = {Martinus Nijhoff},
  Year                     = {1970},

  Localfile                = {/home/huub/Documents/Research/main/Sources/Fann1970a-Peirces_theory_of_abduction.pdf},
  Location                 = {The Hague},
  Url                      = {http://www.dca.fee.unicamp.br/~gudwin/ftp/ia005/Peirce%20Theory%20of%20Abduction.pdf}
}

@InCollection{Ferrari2011a,
  Title                    = {{Educational Change through Technology: A Challenge for Obligatory Schooling in Europe}},
  Author                   = {Ferrari, A. and Cachia, R. and Punie, Y.},
  Booktitle                = {{Towards Ubiquitous Learning}},
  Publisher                = {Springer Berlin Heidelberg},
  Year                     = {2011},
  Editor                   = {Kloos, CarlosDelgado and Gillet, Denis and {Crespo Garc{\'i}a}, RaquelM. and Wild, Fridolin and Wolpers, Martin},
  Pages                    = {97--110},
  Series                   = {{Lecture Notes in Computer Science}},
  Volume                   = {6964},

  Doi                      = {10.1007/978-3-642-23985-4_9},
  File                     = {/home/huub/Documents/Research/main/Sources/Ferrari2011a-Educational\_change\_through\_technology-a\_challenge\_for\_obligatory\_schooling\_in\_Europe.pdf},
  ISBN                     = {978-3-642-23984-7},
  Keywords                 = {Compulsory Education; Future of Learning; Educational change; Educational technology; schools and technology},
  Url                      = {http://dx.doi.org/10.1007/978-3-642-23985-4_9}
}

@InCollection{Ferrari2012a,
  Title                    = {{Understanding Digital Competence in the 21st Century: An Analysis of Current Frameworks}},
  Author                   = {Ferrari, A. and Punie, Y. and Redecker, C.},
  Booktitle                = {{21st Century Learning for 21st Century Skills}},
  Publisher                = {Springer Berlin Heidelberg},
  Year                     = {2012},
  Editor                   = {Ravenscroft, Andrew and Lindstaedt, Stefanie and Kloos, CarlosDelgado and Hern{\'a}ndez-Leo, Davinia},
  Pages                    = {79--92},
  Series                   = {{Lecture Notes in Computer Science}},
  Volume                   = {7563},

  Doi                      = {10.1007/978-3-642-33263-0_7},
  File                     = {/home/huub/Documents/Research/main/Sources/Ferrari2012a-Understanding\_digital\_competence\_in\_the\_21st\_century.pdf},
  ISBN                     = {978-3-642-33262-3},
  Url                      = {http://dx.doi.org/10.1007/978-3-642-33263-0_7}
}

@Article{Feurzeig2010a,
  Title                    = {{Toward a Culture of Creativity: A Personal Perspective on Logo{\rq}s Early Years and Ongoing Potential}},
  Author                   = {Feurzeig, Wallace},
  Journal                  = {International Journal of Computers for Mathematical Learning},
  Year                     = {2010},
  Note                     = {10.1007/s10758-010-9168-4},
  Pages                    = {257--265},
  Volume                   = {15},

  Affiliation              = {BBN Technologies, Cambridge, MA USA},
  File                     = {/home/huub/Documents/Research/main/Sources/Feurzeig2010a-Toward\_a\_culture\_of\_creativity.pdf},
  ISSN                     = {1382-3892},
  Issue                    = {3},
  Keyword                  = {Humanities, Social Sciences and Law},
  Keywords                 = {ict; programming; history; papert},
  Publisher                = {Springer Netherlands},
  Url                      = {http://dx.doi.org/10.1007/s10758-010-9168-4}
}

@Article{Figueiredo2009a,
  Title                    = {{The actor{\rq}s and observer{\rq}s point of view: A geometry applet as an example}},
  Author                   = {Figueiredo, N. and van Galen, F. and Gravemeijer, K.},
  Journal                  = {Educational Designer},
  Year                     = {2009},
  Number                   = {3},
  Volume                   = {1},

  File                     = {/home/huub/Documents/Research/main/Sources/Figueiredo2009a-The\_actors\_and\_observers\_point\_of\_view.pdf},
  HowPublished             = {http://www.educationaldesigner.org/ed/volume1/issue2/article5},
  Localfile                = {/home/huub/to-research/Sources/Figueiredo2009a-The_actors_and_observers_point_of_view.pdf},
  Url                      = {http://www.educationaldesigner.org/ed/volume1/issue3/article10}
}

@Article{Fishman2004a,
  Title                    = {{Creating a framework for research on systemic technology innovations}},
  Author                   = {Fishman, B. and Marx, R.W. and Blumenfeld, P. and Krajcik, J. and Soloway, E.},
  Journal                  = {Journal of the Learning Sciences},
  Year                     = {2004},
  Number                   = {1},
  Pages                    = {43--76},
  Volume                   = {13},

  File                     = {/home/huub/Documents/Research/main/Sources/Fishman2004a-Creating\_a\_framework\_for\_research\_on\_systematic\_technology\_innovations.pdf},
  Keywords                 = {design research; ict},
  Publisher                = {Routledge},
  Url                      = {http://www.umich.edu/~hiceweb/downloads/JLS13\_1\_pp43\_76.pdf}
}

@InCollection{Forbus2008a,
  Title                    = {{Qualitative modeling}},
  Author                   = {Forbus, K.D.},
  Booktitle                = {{Handbook of Knowledge Representation}},
  Publisher                = {Elsevier},
  Year                     = {2008},
  Editor                   = {van Harmelen, F. and Lifschitz, V. and Porter, B.},
  Pages                    = {361--393},

  File                     = {/home/huub/Documents/Research/main/Sources/Forbus2008a-Qualitative\_modeling.pdf},
  Keywords                 = {modeling}
}

@Article{Ford2003a,
  Title                    = {{Representing and meaning in history and in classrooms: developing symbols and conceptual organizations of free-fall motion}},
  Author                   = {Ford, M.J.},
  Journal                  = {Science \& Education},
  Year                     = {2003},
  Number                   = {1},
  Pages                    = {1--25},
  Volume                   = {12},

  File                     = {/home/huub/Documents/Research/main/Sources/Ford2003a-Representing\_and\_meaning\_in\_history\_and\_in\_classrooms.pdf},
  Keywords                 = {history; mathematics; motion domain; ict; representation; draw graph},
  Publisher                = {Springer}
}

@Unpublished{Ford2000a,
  Title                    = {{The Interpretation of Symbol Schemes in a Computational Medium.}},
  Author                   = {Ford, M. and Frederickson, A. and Martin, L.},
  Note                     = {Paper presented at the Annual Meeting of the American Educational Research Association (New Orleans, LA, April 24-28, 2000},
  Year                     = {2000},

  File                     = {/home/huub/Documents/Research/main/Sources/Ford2000a-The\_interpretation\_of\_symbol-schemes\_in\_a\_copmutational\_medium.pdf},
  Keywords                 = {middle school},
  Url                      = {http://www.eric.ed.gov/PDFS/ED443404.pdf}
}

@InProceedings{Forster2004a,
  Title                    = {{Conceptualising Motion Through Dynamic Graphing}},
  Author                   = {Forster, Patricia A},
  Year                     = {2004},

  File                     = {/home/huub/Documents/Research/main/Sources/Forster2004a-Conceptualising\_motion\_through\_dynamic\_graphing.pdf}
}

@Book{Freudenthal1991a,
  Title                    = {{Revisiting mathematics education: China lectures}},
  Author                   = {Freudenthal, H.},
  Publisher                = {Springer},
  Year                     = {1991},
  Volume                   = {9},

  File                     = {/home/huub/Documents/Research/main/Sources/Freudenthal1991a-Revisiting\_mathematics\_education.pdf}
}

@Book{Freudenthal1983a,
  Title                    = {{Didactical phenomenology of mathematical structures}},
  Author                   = {Freudenthal, H.},
  Publisher                = {D. Reidel Publishing Company},
  Year                     = {1983},

  Address                  = {Dordrecht},

  File                     = {/home/huub/Documents/Research/main/Sources/Freudenthal1983a-Didactical\_phenomenology\_of\_mathematical\_structures.pdf},
  Keywords                 = {mathematics}
}

@Book{Freudenthal1978a,
  Title                    = {{Weeding and sowing: Preface to a science of mathematical education}},
  Author                   = {Freudenthal, H.},
  Publisher                = {Springer},
  Year                     = {1978}
}

@Article{Freudenthal1976a,
  Title                    = {{Wiskundeonderwijs anno 2000}},
  Author                   = {Freudenthal, Hans},
  Journal                  = {Euclides},
  Year                     = {1976},
  Note                     = {reprint in panama special edition Freudenthal 100},
  Number                   = {8},
  Pages                    = {294},
  Volume                   = {52},

  File                     = {/home/huub/Documents/Research/main/Sources/Freudenthal1976a-Wiskunde\_onderwijs\_anno\_2000.pdf},
  Url                      = {http://www.fisme.science.uu.nl/publicaties/literatuur/7205.pdf}
}

@Article{Freudenthal1971a,
  Title                    = {{Geometry between the devil and the deep sea}},
  Author                   = {Freudenthal, H.},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {1971},
  Number                   = {3},
  Pages                    = {413--435},
  Volume                   = {3},

  File                     = {/home/huub/Documents/Research/main/Sources/Freudenthal1971a-Geometry\_between\_the\_devil\_and\_the\_deep\_sea.pdf},
  Keywords                 = {geometry; mathematics},
  Publisher                = {Springer}
}

@Article{Frey2013a,
  Title                    = {{The future of employment: how susceptible are jobs to computerisation?}},
  Author                   = {Frey, C. and Osborne, M.},
  Year                     = {2013},

  File                     = {/home/huub/Documents/Research/main/Sources/Frey2013a-The\_future\_of\_employment-how\_susceptible\_are\_jobs\_to\_computerisation.pdf},
  Url                      = {http://www.futuretech.ox.ac.uk/sites/futuretech.ox.ac.uk/files/The_Future_of_Employment_OMS_Working_Paper_0.pdf}
}

@Article{Friel2001a,
  Title                    = {{Making Sense of Graphs: Critical Factors Influencing Comprehension and Instructional Implications}},
  Author                   = {Friel, Susan N. and Curcio, Frances R. and Bright, George W.},
  Journal                  = {Journal for Research in Mathematics Education},
  Year                     = {2001},
  Number                   = {2},
  Pages                    = {pp. 124--158},
  Volume                   = {32},

  File                     = {/home/huub/Documents/Research/main/Sources/Friel2001a-Making\_sense\_of\_graphs-critical\_factors\_influencing\_comprehension\_and\_instructional\_implications.pdf}
}

@InCollection{Friendly2008a,
  Title                    = {{A Brief History of Data Visualization}},
  Author                   = {Friendly, Michael},
  Booktitle                = {{Handbook of Data Visualization}},
  Publisher                = {Springer Berlin Heidelberg},
  Year                     = {2008},
  Pages                    = {15--56},
  Series                   = {{Springer Handbooks Comp.Statistics}},

  Doi                      = {10.1007/978-3-540-33037-0_2},
  File                     = {/home/huub/Documents/Research/main/Sources/Friendly2008a-A\_brief\_history\_of\_data\_visualization.pdf},
  ISBN                     = {978-3-540-33036-3},
  Language                 = {English},
  Url                      = {http://dx.doi.org/10.1007/978-3-540-33037-0_2}
}

@InCollection{Frigg2012a,
  Title                    = {{Models in Science}},
  Author                   = {Frigg, Roman and Hartmann, Stephan},
  Booktitle                = {{The Stanford Encyclopedia of Philosophy}},
  Year                     = {2012},
  Edition                  = {Fall 2012},
  Editor                   = {Zalta, Edward N.},

  HowPublished             = {\url{http://plato.stanford.edu/archives/fall2012/entries/models-science/}}
}

@Article{Frigg2009a,
  Title                    = {{The philosophy of simulation: hot new issues or same old stew?}},
  Author                   = {Frigg, Roman and Reiss, Julian},
  Journal                  = {Synthese},
  Year                     = {2009},
  Number                   = {3},
  Pages                    = {593--613},
  Volume                   = {169},

  Doi                      = {10.1007/s11229-008-9438-z},
  File                     = {/home/huub/Documents/Research/main/Sources/Frigg2009a-The\_philosophy\_of\_simulation-hot\_new\_issues\_or\_same\_old\_stew.pdf},
  ISSN                     = {0039-7857},
  Keywords                 = {Simulation; Models; Computer experiments; Representation; Epistemology of simulation},
  Language                 = {English},
  Publisher                = {Springer Netherlands},
  Url                      = {http://dx.doi.org/10.1007/s11229-008-9438-z}
}

@Article{Furinghetti2007a,
  Title                    = {{Teacher education through the history of mathematics}},
  Author                   = {Furinghetti, Fulvia},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {2007},
  Pages                    = {131--143},
  Volume                   = {66}
}

@InProceedings{Trigueros2011a,
  Title                    = {{How are graphs of two vvariable taught?}},
  Author                   = {Gaisman, Maria Trigueros and Mart{\'i}nez-Planell, Rafael},
  Booktitle                = {{Proceedings of the Annual Meeting of the North American Chapter of the International Group for the Psychology of Mathematics Education, University of Nevada, Reno, Reno, NV.}},
  Year                     = {2011},

  File                     = {/home/huub/Documents/Research/main/Sources/Trigueros2011a-How\_are\_graphs\_of\_two\_variable\_functions\_taught.pdf}
}

@Book{Galen2010a,
  Title                    = {{Dynamische grafieken op de basisschool}},
  Author                   = {van Galen, F. and Gravemeijer, K.},
  Publisher                = {Ververs foundation},
  Year                     = {2010},

  File                     = {/home/huub/Documents/Research/main/Sources/Galen2010a-Dynamische\_grafieken\_op\_de\_basisschool.pdf},
  Keywords                 = {ict; graph; compound variable quantities; primary education},
  Url                      = {http://www.fi.uu.nl/rekenweb/grafiekenmaker/documents/dynamischegrafieken.pdf}
}

@Book{Galen2009a,
  Title                    = {{Dynamische grafieken op de basisschool}},
  Author                   = {van Galen, F. and Gravemeijer, K.},
  Year                     = {2009},

  File                     = {/home/huub/Documents/Research/main/Sources/Galen2009a-Dynamische\_grafieken\_op\_de\_basisschool.pdf}
}

@Book{Galen2012a,
  Title                    = {{Kinderen ononderzoeken 'snelheid'}},
  Author                   = {van Galen, F. and Gravemeijer, K. and van Mulken, F. and Quant, E.},
  Year                     = {2012},

  File                     = {/home/huub/Documents/Research/main/Sources/Galen2012a-Kinderen\_onderzoeken\_snelheid.pdf},
  Url                      = {http://www.fisme.science.uu.nl/rekenweb/grafiekenmaker/documents/kinderenonderzoekensnelheid.pdf}
}

@Electronic{Garcia200xa,
  Title                    = {{Children who interpret graphs as pictures}},
  Author                   = {{Garcia Garcia}, Grecia and Cox, Richard},
  Url                      = {http://celstec.org/system/files/file/conference_proceedings/aeid2009/papers/paper_163.pdf},

  File                     = {/home/huub/Documents/Research/main/Sources/Garcia200xa-Children\_who\_interpret\_graphs\_as\_pictures.pdf},
  Keywords                 = {graph; primary education}
}

@InProceedings{Garcia2010a,
  Title                    = {{"Graph-as-Picture" Misconceptions in Young Students}},
  Author                   = {Garcia, G.G. and Cox, R.},
  Booktitle                = {{Diagrammatic Representation and Inference: 6th International Conference, Diagrams 2010, Portland, USA, August 9-11, 2010, Proceedings}},
  Year                     = {2010},
  Organization             = {Springer-Verlag},
  Pages                    = {310--312},

  File                     = {/home/huub/Documents/Research/main/Sources/Garcia2010a-Graph-as-picture\_misconceptions\_in\_young\_children.pdf},
  Keywords                 = {graph; primary education}
}

@Article{Gardner1970a,
  Title                    = {{Mathematical games: The fantastic combinations of John Conway{\rq}s new solitaire game ``life''}},
  Author                   = {Gardner, M.},
  Journal                  = {Scientific American},
  Year                     = {1970},
  Number                   = {4},
  Pages                    = {120--123},
  Volume                   = {223},

  File                     = {/home/huub/Documents/Research/main/Sources/Gardner1970a-Mathematical\_games-The\_fantastic\_combinations\_of\_John\_Conways\_new\_solitaire\_game\_life.pdf},
  Url                      = {http://ddi.cs.uni-potsdam.de/HyFISCH/Produzieren/lis_projekt/proj_gamelife/ConwayScientificAmerican.htm}
}

@Article{Ge2003a,
  Title                    = {{Scaffolding students{\rq} problem-solving processes in an ill-structured task using question prompts and peer interactions}},
  Author                   = {Ge, X. and Land, S.M.},
  Journal                  = {Educational Technology Research and Development},
  Year                     = {2003},
  Number                   = {1},
  Pages                    = {21--38},
  Volume                   = {51},

  File                     = {/home/huub/Documents/Research/main/Sources/Ge2003a-Scaffolding\_students\_problem-solving\_processes\_in\_an\_ill-structured\_task.pdf}
}

@Article{Gentner1997a,
  Title                    = {{Structure mapping in analogy and similarity}},
  Author                   = {Gentner, Dedre and Markman, Arthur B.},
  Journal                  = {American Psychologist},
  Year                     = {1997},
  Number                   = {1},
  Pages                    = {45--56},
  Volume                   = {52},

  File                     = {/home/huub/Documents/Research/main/Sources/Gentner1997a-Structure\_mapping\_in\_analogy\_and\_similarity.pdf}
}

@InCollection{Gess1999a,
  Title                    = {{Pedagogical Content Knowledge: An Introduction and Orientation}},
  Author                   = {Gess-Newsome, Julie},
  Booktitle                = {{Examining Pedagogical Content Knowledge}},
  Publisher                = {Springer Netherlands},
  Year                     = {1999},
  Editor                   = {Gess-Newsome, Julie and Lederman, NormanG.},
  Pages                    = {3--17},
  Series                   = {{Science \& Technology Education Library}},
  Volume                   = {6},

  Doi                      = {10.1007/0-306-47217-1_1},
  ISBN                     = {978-0-7923-5903-6},
  Url                      = {http://dx.doi.org/10.1007/0-306-47217-1_1}
}

@Article{Gilbert2004a,
  Title                    = {{Models and modelling: Routes to more authentic science education}},
  Author                   = {Gilbert, J.},
  Journal                  = {International Journal of Science and Mathematics Education},
  Year                     = {2004},
  Number                   = {2},
  Pages                    = {115--130},
  Volume                   = {2},

  File                     = {/home/huub/Documents/Research/main/Sources/Gilbert2004a-Models\_and\_modelling-Routes\_to\_more\_authentic\_science\_education.pdf}
}

@InCollection{Gilbert1998a,
  Title                    = {{Learning Science Through Models and Modelling}},
  Author                   = {Gilbert, J. and Boulter, C.},
  Booktitle                = {{International handbook of science education}},
  Year                     = {1998},
  Editor                   = {Fraser, B.J. and Tohin, K.G.},
  Pages                    = {53--66},

  File                     = {/home/huub/Documents/Research/main/Sources/Gilbert1998a-Learning\_science\_through\_models\_and\_modelling.pdf}
}

@Article{Gilbert1991a,
  Title                    = {{Model building and a definition of science}},
  Author                   = {Gilbert, S.},
  Journal                  = {Journal of Research in Science Teaching},
  Year                     = {1991},
  Number                   = {1},
  Pages                    = {73--79},
  Volume                   = {28},

  File                     = {/home/huub/Documents/Research/main/Sources/Gilbert1991a-Model\_building\_and\_a\_definition\_of\_science.pdf}
}

@Article{Gillies2011a,
  Title                    = {{Promoting thinking, problem-solving and reasoning during small group discussions}},
  Author                   = {Gillies, R.M.},
  Journal                  = {Teachers and Teaching: theory and practice},
  Year                     = {2011},
  Number                   = {1},
  Pages                    = {73--89},
  Volume                   = {17},

  File                     = {/home/huub/Documents/Research/main/Sources/Gillies2011a-Promoting\_thinking\_problem-solving\_and\_reasoning\_during\_small\_group\_discussions.pdf}
}

@Article{Gillies2005a,
  Title                    = {{Teachers' scaffolding behaviours during cooperative learning}},
  Author                   = {Gillies, R.M. and Boyle, M.},
  Journal                  = {Asia-Pacific Journal of Teacher Education},
  Year                     = {2005},
  Number                   = {3},
  Pages                    = {243--259},
  Volume                   = {33},

  File                     = {/home/huub/Documents/Research/main/Sources/Gillies2005a-Teachers\_scaffolding\_behaviours\_during\_cooperative\_learning.pdf}
}

@Article{Gillies2011b,
  Title                    = {{Increasing explanatory behaviour, problem-solving, and reasoning within classes using cooperative group work}},
  Author                   = {Gillies, R.M. and Haynes, M.},
  Journal                  = {Instructional Science},
  Year                     = {2011},
  Number                   = {3},
  Pages                    = {349--366},
  Volume                   = {39},

  File                     = {/home/huub/Documents/Research/main/Sources/Gillies2011a-Increasing\_explanatory+behaviour\_problem\_solving\_and\_reasoning\_within\_classes\_using\_cooperative\_group\_work.pdf}
}

@Article{Gillies2003a,
  Title                    = {{Structuring cooperative group work in classrooms}},
  Author                   = {Gillies, Robyn M.},
  Journal                  = {International Journal of Educational Research},
  Year                     = {2003},
  Number                   = {1{\^a}€``2},
  Pages                    = {35--49},
  Volume                   = {39},

  Doi                      = {10.1016/S0883-0355(03)00072-7},
  File                     = {/home/huub/Documents/Research/main/Sources/Gillies2003a-Structuring\_cooperative\_group\_work\_in\_classrooms.pdf},
  ISSN                     = {0883-0355},
  Url                      = {http://www.sciencedirect.com/science/article/pii/S0883035503000727}
}

@Book{Glaser1967a,
  Title                    = {{The discovery of grounded theory: strategies for qualitative research}},
  Author                   = {Glaser, B.G. and Strauss, A.L.},
  Publisher                = {Aldine Transaction},
  Year                     = {1967},
  Edition                  = {third paperback printing 2008},

  Location                 = {New Brunswick}
}

@InCollection{Glasersfeld1981a,
  Title                    = {{Feedback, induction, and epistemology}},
  Author                   = {von Glasersfeld, E.},
  Booktitle                = {{Applied systems and cybernetics}},
  Publisher                = {Pergamon Press},
  Year                     = {1981},

  Address                  = {New York},
  Editor                   = {Lasker, G.},
  Pages                    = {712--719},
  Volume                   = {2},

  File                     = {/home/huub/Documents/Research/main/Sources/Glasersfeld1981a-Feedback\_induction\_and\_epistemology.pdf},
  Keywords                 = {glasersfeld}
}

@Book{Glasersfeld1995a,
  Title                    = {{Radical Constructivism: A Way of Knowing and Learning. Studies in Mathematics Education Series: 6.}},
  Author                   = {von Glasersfeld, E.},
  Publisher                = {Routledge/Falmer},
  Year                     = {1995}
}

@Article{Glasersfeld1989a,
  Title                    = {{Cognition, Construction of Knowledge, and Teaching.}},
  Author                   = {von Glasersfeld, E.},
  Year                     = {1989},
  Number                   = {1},
  Pages                    = {121--140},
  Volume                   = {80},

  File                     = {/home/huub/Documents/Research/main/Sources/Glasersfeld1989a--Cognition\_construction\_of\_knowledge\_and\_teaching.pdf},
  Keywords                 = {glasersfeld; constructivism; social constructivism},
  Url                      = {http://www.ffst.hr/~berislav/phed/filod2007/literatura/glasersfeld.pdf},
  Yournal                  = {Synthese}
}

@Article{Glazer2011a,
  Title                    = {{Challenges with graph interpretation: a review of the literature}},
  Author                   = {Glazer, N.},
  Journal                  = {Studies in Science Education},
  Year                     = {2011},
  Number                   = {2},
  Pages                    = {183--210},
  Volume                   = {47},

  Doi                      = {10.1080/03057267.2011.605307},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/03057267.2011.605307},
  File                     = {/home/huub/Documents/Research/main/Sources/Glazer2011a-Challenges\_with\_graph\_interpretation-a\_review\_of\_the\_literature.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/03057267.2011.605307}
}

@Article{Goedhart1999a,
  Title                    = {{The use of van Hiele levels as a tool in the development of curricula for science education}},
  Author                   = {Goedhart, M.J.},
  Journal                  = {Research in Science Education in Europe},
  Year                     = {1999},
  Pages                    = {65--72},

  File                     = {/home/huub/Documents/Research/main/Sources/Goedhart1999a-The\_use\_of\_Van\_Hiele\_levels\_as\_a\_tool\_in\_development\_science\_curricula.pdf},
  Keywords                 = {van hiele; science; higher education},
  Publisher                = {Kluwer Academic Publishers}
}

@Article{Golafshani2003a,
  Title                    = {{Understanding reliability and validity in qualitative research}},
  Author                   = {Golafshani, N.},
  Journal                  = {The qualitative report},
  Year                     = {2003},
  Number                   = {4},
  Pages                    = {597--606},
  Volume                   = {8}
}

@InCollection{Goodchild2010a,
  Title                    = {{Commentary 1 on Reflections on Theories of Learning by Paul Ernest}},
  Author                   = {Goodchild, Simon},
  Booktitle                = {{Theories of Mathematics Education}},
  Publisher                = {Springer Berlin Heidelberg},
  Year                     = {2010},
  Editor                   = {Sriraman, Bharath and English, Lyn},
  Note                     = {10.1007/978-3-642-00742-2\_5},
  Pages                    = {49--52},
  Series                   = {{Advances in Mathematics Education}},

  Affiliation              = {Department of Mathematical Sciences, University of Agder, Kristiansand, Norway},
  File                     = {/home/huub/Documents/Research/main/Sources/Goodchild2010a-Commentary1\_on\_reflections\_of\_learning\_by\_Paul\_Ernest.pdf},
  ISBN                     = {978-3-642-00742-2},
  Keyword                  = {Education},
  Keywords                 = {social constructivism; mathematics},
  Url                      = {http://dx.doi.org/10.1007/978-3-642-00742-2_5}
}

@Book{Gould2011a,
  Title                    = {{The Hedgehog, the Fox, and the Magister's Pox. Mending the Gap between science and the humanities}},
  Author                   = {Gould, S.J.},
  Publisher                = {The Belknap Press of Harvard University Press},
  Year                     = {2011},

  Localfile                = {/home/huub/Documents/Research/main/Sources/Gould2011a-The_fox_and_the_magisters_pox.pdf}
}

@Article{Grabiner1983a,
  Title                    = {{The changing concept of change: the derivative from Fermat to Weierstrass}},
  Author                   = {Grabiner, J.V.},
  Journal                  = {Mathematics Magazine},
  Year                     = {1983},
  Number                   = {4},
  Pages                    = {195--206},
  Volume                   = {56},

  File                     = {/home/huub/Documents/Research/main/Sources/Grabiner1983a-The\_changing\_concept\_of\_change.pdf},
  Keywords                 = {calculus; change; history}
}

@Article{Grant1972a,
  Title                    = {{Nicole Oresme and the medieval geometry of qualities and motions. A treatise on the uniformity and difformity of intensities known as {\lq}tractatus de configurationibus qualitatum et motuum{\rq}: Marshall Clagett (ed. and tr.), edited with an introduction, English translation and commentary by Marshall Clagett. University of Wisconsin Press: Madison, Milwaukee, 1968; and London, 1969. xiii+713pp. £7.75.}},
  Author                   = {Grant, Edward},
  Journal                  = {Studies in History and Philosophy of Science Part A},
  Year                     = {1972},
  Number                   = {2},
  Pages                    = {167--182},
  Volume                   = {3},

  Doi                      = {10.1016/0039-3681(72)90022-2},
  File                     = {/home/huub/Documents/Research/main/Sources/Grant1972a-Essy\_review\_Oresme.pdf},
  ISSN                     = {0039-3681},
  Url                      = {http://www.sciencedirect.com/science/article/pii/0039368172900222}
}

@InCollection{Gravemeijer2013b,
  Title                    = {{Mathematics Education and the Information Society}},
  Author                   = {Gravemeijer, K.},
  Booktitle                = {{Educational Interfaces between Mathematics and Industry, Report on an ICMI-ICIAM-Study}},
  Publisher                = {Springer International Publishing},
  Year                     = {2013},

  Address                  = {Cham, Switzerland},
  Editor                   = {Damlamian, A. and Rodrigues, J. and Str{\"a}{\ss}er, R.},
  Pages                    = {279--286},
  Series                   = {{New ICMI Study Series}},

  Vol                      = {16}
}

@InCollection{Gravemeijer2007b,
  Title                    = {{Emergent modelling as a precursor to mathematical modelling}},
  Author                   = {Gravemeijer, K.},
  Booktitle                = {{Modelling and Applications in mathematics education}},
  Publisher                = {Springer},
  Year                     = {2007},
  Editor                   = {Galbraith, P. and Henn, H. and Niss, Mogens},
  Pages                    = {137--144},

  File                     = {/home/huub/Documents/Research/main/Sources/Gravemeijer2007b-Emergent\_modelling\_as\_a\_precursor\_to\_mathematical\_modelling.pdf}
}

@InCollection{Gravemeijer2002a,
  Title                    = {{Preamble: From Models to Modeling}},
  Author                   = {Gravemeijer, K.},
  Booktitle                = {{Symbolizing, Modeling and Tool Use in Mathematics Education}},
  Publisher                = {Kluwer Academic Publishers},
  Year                     = {2002},
  Editor                   = {Gravemeijer, K. and Lehrer, R. and van Oers, B. and Verschaffel, L.},
  Pages                    = {7--22},

  File                     = {/home/huub/Documents/Research/main/Sources/Gravemeijer2002a-Preamble\_From\_Models\_to\_Modeling.doc},
  Keywords                 = {modeling; constructivism; social constructivism}
}

@InCollection{Gravemeijer2008a,
  Title                    = {{RME Theory and Mathematics Teacher Education}},
  Author                   = {Gravemeijer, K.},
  Booktitle                = {{International handbook of mathematics teacher education: Vol.1. Knowledge and beliefs in mathematics teaching and teaching development}},
  Publisher                = {Sense Publishers},
  Year                     = {2008},
  Editor                   = {Tirosh, D. and Wood, T.},
  Pages                    = {283--302},

  Addresss                 = {Rotterdam}
}

@Unpublished{Gravemeijer1988a,
  Title                    = {{Methodologische objectiviteit en kwalitatief onderzoek}},
  Author                   = {Gravemeijer, K.},

  Localfile                = {/home/huub/Documents/Research/main/Sources/Gravemeijer1988a-Methodologische_objectiviteit_en_kwalitatief_onderzoek.pdf},
  Pages                    = {77--82}
}

@Book{Gravemeijer2009b,
  Title                    = {{Leren voor later. Toekomstgerichte science- en techniekonderwijs voor de basisschool}},
  Author                   = {Gravemeijer, K.},
  Publisher                = {Technische universiteit Eindhoven},
  Year                     = {2009},

  Address                  = {Eindhoven},
  Note                     = {intreerede 20 maart 2009},

  File                     = {/home/huub/Documents/Research/main/Sources/Gravemeijer2009b-Leren\_voor\_later.pdf},
  Keywords                 = {ict; graph; compound variable quantities; mathematics; science},
  Url                      = {http://library.tue.nl/catalog/LinkToVubis.csp?DataBib=6:641950}
}

@Article{Gravemeijer2005a,
  Title                    = {{Revisiting 'Mathematics education revisited'}},
  Author                   = {Gravemeijer, K.},
  Year                     = {2005},

  File                     = {/home/huub/Documents/Research/main/Sources/Gravemeijer2005a-Revisiting\_mathematics\_education\_revisited.pdf},
  Keywords                 = {mathematics},
  Publisher                = {Freudenthal Instituut},
  Url                      = {http://www.fi.uu.nl/publicaties/literatuur/6638.pdf}
}

@Article{Gravemeijer2004a,
  Title                    = {{Local Instruction Theories as Means of Support for Teachers in Reform Mathematics Education}},
  Author                   = {Gravemeijer, K.},
  Journal                  = {Mathematical Thinking and Learning},
  Year                     = {2004},
  Number                   = {2},
  Pages                    = {105--128},
  Volume                   = {6},

  File                     = {/home/huub/Documents/Research/main/Sources/Gravemeijer2004a.pdf},
  Keywords                 = {design research; primary education; local instruction theory}
}

@Article{Gravemeijer1999b,
  Title                    = {{How emergent models may foster the constitution of formal mathematics}},
  Author                   = {Gravemeijer, K.},
  Journal                  = {Mathematical Thinking and Learning},
  Year                     = {1999},
  Number                   = {2},
  Pages                    = {155--177},
  Volume                   = {1},

  File                     = {/home/huub/Documents/Research/main/Sources/Gravemeijer1999b-How\_emergent\_models\_may\_foster\_the\_constitution\_of\_formal\_mathematics.pdf},
  Publisher                = {Taylor \& Francis}
}

@Article{Gravemeijer1994a,
  Title                    = {{Educational development and developmental research in mathematics education}},
  Author                   = {Gravemeijer, K.},
  Journal                  = {Journal for Research in Mathematics Education},
  Year                     = {1994},
  Number                   = {5},
  Pages                    = {443--471},
  Volume                   = {25},

  File                     = {/home/huub/Documents/Research/main/Sources/Gravemeijer1994a-Educational\_development\_and\_developmental\_research\_in\_mathematics\_education.pdf},
  Keywords                 = {mathematics; design research}
}

@PhdThesis{Gravemeijer1994b,
  Title                    = {{Developing realistic mathematics education}},
  Author                   = {Gravemeijer, K.},
  School                   = {Utrecht University},
  Year                     = {1994},

  File                     = {/home/huub/Documents/Research/main/Sources/Gravemeijer1994b-Developing\_realistic\_mathematics\_education.pdf}
}

@InCollection{Gravemeijer2003a,
  Title                    = {{Chapter 6: Continuing the Design Research Cycle: A Revised Measurement and Arithmetic Sequence}},
  Author                   = {Gravemeijer, K. and Bowers, J. and Stephan, M.},
  Booktitle                = {{Supporting Students' Development of Measuring Conceptions: Analyzing Students' Learning in Social Context}},
  Publisher                = {National Council of Teachers of Mathematics},
  Year                     = {2003},
  Pages                    = {pp. 103--122},
  Series                   = {{Journal for Research in Mathematics Education. Monograph}},
  Volume                   = {12},

  Url                      = {http://www.jstor.org/stable/30037723}
}

@InCollection{Gravemeijer2013a,
  Title                    = {{Design research from the learning design perspective}},
  Author                   = {Gravemeijer, K. and Cobb, P.},
  Booktitle                = {{Educational design research}},
  Publisher                = {SLO},
  Year                     = {2013},
  Chapter                  = {3},
  Editor                   = {Nieveen, N. and Plomp, T.},
  Pages                    = {73--113},

  File                     = {/home/huub/Documents/Research/main/Sources/Gravemeijer2013a-Design\_research\_from\_the\_learning\_design\_perspective.pdf},
  Location                 = {Enschede},
  Url                      = {http://international.slo.nl/publications/edr/}
}

@InCollection{Gravemeijer2006a,
  Title                    = {{Design research from a learning design perspective}},
  Author                   = {Gravemeijer, K. and Cobb, P.},
  Booktitle                = {{Educational design research}},
  Publisher                = {Routledge London, New York},
  Year                     = {2006},
  Editor                   = {{Van den Akker}, J. and Gravemeijer, K. and McKenney, S. and Nieveen, N.},
  Pages                    = {45--85},

  File                     = {/home/huub/Documents/Research/main/Sources/Gravemeijer2006a-Design\_research\_from\_a\_learning\_perspective.pdf},
  Keywords                 = {design research},
  Url                      = {http://www.fi.uu.nl/publicaties/literatuur/EducationalDesignResearch.pdf}
}

@Article{Gravemeijer2007a,
  Title                    = {{Ontwikkelingsonderzoek als methode voor onderzoek rond innovatieve leergangen}},
  Author                   = {Gravemeijer, K. and Cobb, P.},
  Journal                  = {Pedagogische Studi{\"e}n},
  Year                     = {2007},
  Number                   = {5},
  Pages                    = {330--339},
  Volume                   = {84},

  File                     = {/home/huub/Documents/Research/main/Sources/Gravemeijer2007a.pdf},
  Keywords                 = {design research; mathematics}
}

@InCollection{Gravemeijer2000b,
  Title                    = {{Symbolizing, Modeling, and Instructional Design}},
  Author                   = {Gravemeijer, K. and Cobb, P. and Bowers, J. and Whitenack, J.},
  Booktitle                = {{Communicating and symbolizing in mathematics: Perspectives on discourse, tools, and instructional design}},
  Year                     = {2000},
  Chapter                  = {7},
  Editor                   = {Cobb, P. and Yackel, E. and McClain, K.},
  Pages                    = {225--274}
}

@Article{Gravemeijer1999a,
  Title                    = {{Context Problems in Realistic Mathematics Education: A Calculus Course as an Example}},
  Author                   = {Gravemeijer, K. and Doorman, M.},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {1999},
  Number                   = {1/3},
  Pages                    = {111--129},
  Volume                   = {39},

  File                     = {/home/huub/Documents/Research/main/Sources/Gravemeijer1999a-Context\_problems\_in\_realistic\_mathematics\_education-A\_calculus\_course\_as\_an\_example.pdf},
  Keywords                 = {calculus; design research; history},
  Publisher                = {Springer},
  Url                      = {http://www.jstor.org/stable/3483163}
}

@Article{Gravemeijer2009a,
  Title                    = {{Design Research as a Means for Building a Knowledge Base for Teachers and Teaching in Mathematics Education}},
  Author                   = {Gravemeijer, K. and Eerde, D. van},
  Journal                  = {The Elementary School Journal},
  Year                     = {2009},
  Number                   = {5},
  Pages                    = {1--15},
  Volume                   = {109},

  File                     = {/home/huub/Documents/Research/main/Sources/Gravemeijer2009a-Design\_Research\_as\_a\_Means\_for\_Building\_a\_Knowledge\_Base\_for\_Teachers\_and\_Teaching\_in\_Mathematics\_Education.pdf},
  Keywords                 = {design research; mathematics; teacher}
}

@Article{Gravemeijer2000a,
  Title                    = {{Hans Freudenthal: a mathematician on didactics and curriculum theory}},
  Author                   = {Gravemeijer, K. and Terwel, J.},
  Journal                  = {Journal of curriculum studies},
  Year                     = {2000},
  Number                   = {6},
  Pages                    = {777--796},
  Volume                   = {32},

  File                     = {/home/huub/Documents/Research/main/Sources/Gravemeijer2000a-Hans\_Freudenthal-a\_mathematician\_on\_didactics\_and\_curriculum\_theory.pdf}
}

@Article{Gray1994a,
  Title                    = {{Duality, Ambiguity, and Flexibility: A "Proceptual" View of Simple Arithmetic}},
  Author                   = {Gray, E. and Tall, D.},
  Journal                  = {Journal for Research in Mathematics Education},
  Year                     = {1994},
  Number                   = {2},
  Pages                    = {pp. 116--140},
  Volume                   = {25},

  File                     = {/home/huub/Documents/Research/main/Sources/Gray1994a-Duality\_ambiguity\_and\_flexibility-a\_proceptual\_view\_of\_simple\_arithmetic.pdf}
}

@InCollection{Gredler2004a,
  Title                    = {{Games and simulations and their relationships to learning}},
  Author                   = {Gredler, M.E.},
  Booktitle                = {{Handbook of research on educational communications and technology}},
  Year                     = {2004},
  Editor                   = {Jonassen, David H.},
  Pages                    = {571--581},
  Volume                   = {2},

  File                     = {/home/huub/Documents/Research/main/Sources/Gredler2004a-Games\_and\_simulations\_and\_their\_relationship\_to\_learning.pdf},
  Keywords                 = {ict},
  Url                      = {http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.131.3781&rep=rep1&type=pdf}
}

@Article{Greer2010a,
  Title                    = {{Overview of the Papers: Why is Linear Thinking so Dominant?}},
  Author                   = {Greer, Brian},
  Journal                  = {Mathematical Thinking and Learning},
  Year                     = {2010},
  Number                   = {1},
  Pages                    = {109--115},
  Volume                   = {12},

  Doi                      = {10.1080/10986060903465996},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/10986060903465996},
  Keywords                 = {linearity},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/10986060903465996}
}

@Article{Gregor2007a,
  Title                    = {{The anatomy of a design theory}},
  Author                   = {Gregor, S. and Jones, D.},
  Journal                  = {Journal of the Association for Information Systems},
  Year                     = {2007},
  Number                   = {5},
  Pages                    = {312--335},
  Volume                   = {8},

  File                     = {/home/huub/Documents/Research/main/Sources/Gregor2007a-The\_anatomy\_of\_a\_design\_theory.pdf}
}

@Article{Grosslight1991a,
  Title                    = {{Understanding models and their use in science: Conceptions of middle and high school students and experts}},
  Author                   = {Grosslight, L. and Unger, C. and Jay, E. and Smith, C.L.},
  Journal                  = {Journal of Research in Science teaching},
  Year                     = {1991},
  Number                   = {9},
  Pages                    = {799--822},
  Volume                   = {28},

  File                     = {/home/huub/Documents/Research/main/Sources/Grosslight1991a-Understanding\_models\_and\_their\_use\_in\_science-Conceptions\_of\_middle\_and\_high\_school\_studentsa\_and\_experts.pdf}
}

@Article{Grover2013a,
  Title                    = {{Computational Thinking in K--12: A Review of the State of the Field}},
  Author                   = {Grover, S. and Pea, R.},
  Journal                  = {Educational Researcher},
  Year                     = {2013},
  Number                   = {1},
  Pages                    = {38--43},
  Volume                   = {42},

  Abstract                 = {Jeannette Wing{\rq}s influential article on computational thinking 6 years ago argued for adding this new competency to every child{\rq}s analytical ability as a vital ingredient of science, technology, engineering, and mathematics (STEM) learning. What is computational thinking? Why did this article resonate with so many and serve as a rallying cry for educators, education researchers, and policy makers? How have they interpreted Wing{\rq}s definition, and what advances have been made since Wing{\rq}s article was published? This article frames the current state of discourse on computational thinking in K--12 education by examining mostly recently published academic literature that uses Wing{\rq}s article as a springboard, identifies gaps in research, and articulates priorities for future inquiries.},
  Doi                      = {10.3102/0013189X12463051},
  Eprint                   = {http://edr.sagepub.com/content/42/1/38.full.pdf+html},
  File                     = {/home/huub/Documents/Research/main/Sources/Grover2013a-Computational\_thinking\_in\_k12-a\_review\_of\_the\_state\_of\_the\_field.pdf},
  Url                      = {http://edr.sagepub.com/content/42/1/38.abstract}
}

@InProceedings{Groves2003a,
  Title                    = {{Shortest equals fastest: upper primary childrens pre-conceptions of speed}},
  Author                   = {Groves, S. and Doig, B.},
  Booktitle                = {{International symposium elementary maths teaching: Prague, the Czech Republic, Charles University, Faculty of Education, August 24-29, 2003: proceedings}},
  Year                     = {2003},
  Pages                    = {79--83},

  File                     = {/home/huub/Documents/Research/main/Sources/Groves2003a-Shortest\_equals\_fastest-upper\_primary\_childrens\_preconceptions\_of\_speed.pdf}
}

@Article{Guba1981a,
  Title                    = {{Criteria for assessing the trustworthiness of naturalistic inquiries}},
  Author                   = {Guba, Egon G.},
  Journal                  = {Educational Technology Research and Development},
  Year                     = {1981},
  Number                   = {2},
  Pages                    = {75--91},
  Volume                   = {29},

  File                     = {/home/huub/Documents/Research/main/Sources/:/home/huub/Documents/Research/main/Sources/Guba1981a-Criteria\_for\_assessing\_the\_trustworthiness\_of\_naturalistic\_inquiries.pdf}
}

@Article{Guzdial2008a,
  Title                    = {{Education: Paving the Way for Computational Thinking}},
  Author                   = {Guzdial, M.},
  Journal                  = {Commun. ACM},
  Year                     = {2008},

  Month                    = aug,
  Number                   = {8},
  Pages                    = {25--27},
  Volume                   = {51},

  Acmid                    = {1378713},
  Address                  = {New York, NY, USA},
  Doi                      = {10.1145/1378704.1378713},
  File                     = {/home/huub/Documents/Research/main/Sources/Guzdial2008a-Paving\_the\_way\_for\_computational\_thinking.pdf},
  ISSN                     = {0001-0782},
  Issue_date               = {August 2008},
  Numpages                 = {3},
  Publisher                = {ACM},
  Url                      = {http://doi.acm.org/10.1145/1378704.1378713}
}

@Article{Guzdial1994a,
  Title                    = {{Software-Realized Scaffolding to Facilitate Programming for Science Learning.}},
  Author                   = {Guzdial, M.},
  Journal                  = {Interactive Learning Environments},
  Year                     = {1994},
  Number                   = {1},
  Pages                    = {1--44},
  Volume                   = {4},

  File                     = {/home/huub/Documents/Research/main/Sources/Guzdial1994a-Software\_realized\_scaffolding\_to\_facilitate\_programming\_for\_science\_learning.pdf},
  Url                      = {http://guzdial.cc.gatech.edu/Emile-ILE.pdf}
}

@Article{Hadjidemetriou2010a,
  Title                    = {{The linearity prototype for graphs: cognitive and sociocultural perspectives}},
  Author                   = {Hadjidemetriou, Constantia and Williams, Julian},
  Journal                  = {Mathematical Thinking and Learning},
  Year                     = {2010},
  Pages                    = {68--85},
  Volume                   = {12},

  File                     = {/home/huub/Documents/Research/main/Sources/Hadjidemetriou2010a-The\_linearity\_prototype\_for\_graphs.pdf},
  Keywords                 = {graph; linearity; secondary education},
  Url                      = {http://www.informaworld.com/index/918797446.pdf}
}

@Article{Halloun1985a,
  Title                    = {{Common sense concepts about motion}},
  Author                   = {Halloun, I.A. and Hestenes, D.},
  Journal                  = {American Journal of Physics},
  Year                     = {1985},
  Pages                    = {1056--1065},
  Volume                   = {53},

  File                     = {/home/huub/Documents/Research/main/Sources/Halloun1985a-Common\_sense\_concepts\_about\_motion.pdf},
  Keywords                 = {motion domain; higher education; history}
}

@Article{Halloun1985b,
  Title                    = {{The initial knowledge state of college physics students}},
  Author                   = {Halloun, I.A. and Hestenes, D.},
  Journal                  = {American journal of Physics},
  Year                     = {1985},
  Number                   = {11},
  Pages                    = {1043--1055},
  Volume                   = {53},

  File                     = {/home/huub/Documents/Research/main/Sources/Halloun1985b-The\_initial\_knowledge\_state\_of\_college\_physics\_students.pdf},
  Publisher                = {New York}
}

@InCollection{Hancock1995a,
  Title                    = {{The Medium and the Curriculum: Reflections on Transparent Tools and Tacit Mathematics}},
  Author                   = {Hancock, Chris},
  Booktitle                = {{Computers and Exploratory Learning}},
  Publisher                = {Springer Berlin Heidelberg},
  Year                     = {1995},
  Editor                   = {diSessa, AndreaA. and Hoyles, Celia and Noss, Richard and Edwards, LaurieD.},
  Pages                    = {221--240},
  Series                   = {{NATO ASI Series}},
  Volume                   = {146},

  Doi                      = {10.1007/978-3-642-57799-4_12},
  Localfile                = {/home/huub/Documents/Research/main/Sources/Hancock1995a-The_medium_and_the_curriculum-Reflections_on_transparent_tools_and_tacit_mathematics.pdf},
  Url                      = {http://dx.doi.org/10.1007/978-3-642-57799-4_12}
}

@Article{Hancock1992a,
  Title                    = {{Authentic Inquiry With Data: Critical Barriers to Classroom Implementation}},
  Author                   = {Hancock, Chris and Kaput, J. and Goldsmith, Lyn T.},
  Journal                  = {Educational Psychologist},
  Year                     = {1992},
  Number                   = {3},
  Pages                    = {337--364},
  Volume                   = {27},

  File                     = {/home/huub/Documents/Research/main/Sources/Hancock1992a-Authentic\_Inquiry\_With\_Data\_Criticl\_Barriers\_to\_Classroom\_Implementation.pdf},
  Keywords                 = {ict; primary education; secondary education}
}

@InCollection{Harel1991c,
  Title                    = {{The silent observer and holistic note taker: using video for documenting a research report}},
  Author                   = {Harel, Idit},
  Booktitle                = {{Constructionism}},
  Year                     = {1991},
  Editor                   = {Harel, Idit and Papert, Seymour},
  Pages                    = {449--466},

  File                     = {/home/huub/Documents/Research/main/Sources/Harel1991c-The\_silent\_observer\_and\_holistic\_note\_taker.pdf}
}

@InCollection{Harel1991b,
  Title                    = {{Software design as a learning environment}},
  Author                   = {Harel, Idit and Papert, Seymour},
  Booktitle                = {{Constructionism}},
  Year                     = {1991},
  Editor                   = {Harel, Idit and Papert, Seymour},
  Pages                    = {41--84},

  File                     = {/home/huub/Documents/Research/main/Sources/Harel1991b-Software\_design\_as\_a\_learning\_environmentl.pdf}
}

@Misc{Harrington2011a,
  Title                    = {{Instants and Instantaneous Velocity}},

  Author                   = {Harrington, James},
  Month                    = {June},
  Year                     = {2011},

  Abstract                 = {As Frank Arntzenius has shown, instantaneous velocity continues to pose philosophical puzzles. Here I recap the flaws involved in all three standard theories of velocity-the 'at-at' theory plus the calculus, impetus or dispositional theories and ?no-instants' theories. Next, I argue that, although it avoids the problems with impetus theories identified by Arntzenius, Marc Lange's dispositional theory of velocity suffers from its own variety of philosophical perplexity. I conclude by arguing for a modified ?no-instants' theory, inspired by Aristotle's responses to Zeno's paradoxes, that avoids the problems for the versions considered by Arntzenius. In addition, this theory points the way to a more philosophically perspicuous account of the internal structure of time.},
  File                     = {/home/huub/Documents/Research/main/Sources/Harrington2011a-Instants\_and\_instantaneous\_velocity.pdf},
  Keywords                 = {instantaneous speed; philosophy},
  Url                      = {http://philsci-archive.pitt.edu/8675/}
}

@Article{Harrison2000a,
  Title                    = {{A typology of school science models}},
  Author                   = {Harrison, Allan G. and Treagust, David F.},
  Journal                  = {International Journal of Science Education},
  Year                     = {2000},
  Number                   = {9},
  Pages                    = {1011--1026},
  Volume                   = {22},

  Doi                      = {10.1080/095006900416884},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/095006900416884},
  File                     = {/home/huub/Documents/Research/main/Sources/Harrison2000a-A\_typology\_of\_school\_science\_models.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/095006900416884}
}

@InCollection{Hartley1996a,
  Title                    = {{Text design}},
  Author                   = {Hartley, J.},
  Booktitle                = {{Handbook of research for educational communications and technology}},
  Year                     = {1996},
  Editor                   = {Jonassen, David H.},
  Pages                    = {795--820},

  File                     = {/home/huub/Documents/Research/main/Sources/:C\:\\Users\\hdbeer\\Documents\\Research\\main\\Sources\\Hartley1996a-Text\_design.pdf},
  Keywords                 = {graphic design; instructional sequence},
  Url                      = {http://www.aect.org/edtech/ed1/pdf/27.pdf}
}

@Book{Peirce1967a,
  Title                    = {{Collected Papers of Charles Sanders Peirce}},
  Author                   = {Hartshorne, Charles and Weiss, Paul and Burks, Arthur},
  Publisher                = {Harvard University Press},
  Year                     = {1967},
  Volume                   = {1},

  Localfile                = {/home/huub/Documents/Research/main/Sources/Peirce1967a-Collected_papers.pdf},
  Url                      = {http://courses.arch.ntua.gr/fsr/138469/Peirce,%20Collected%20papers.pdf}
}

@InProceedings{Hassan2006a,
  Title                    = {{The role of abstraction in learning about rates of change}},
  Author                   = {Hassan, I. and Mitchelmore, M.},
  Booktitle                = {{The 29th annual conference of the Mathematics Education Research Group of Australia}},
  Year                     = {2006},
  Pages                    = {278--285},

  File                     = {/home/huub/Documents/Research/main/Sources/Hassan2006a-The\_role\_of\_abstraction\_in\_learning\_about\_rates\_of\_change.pdf},
  Keywords                 = {calculus; mathematics; secondary education}
}

@Article{Healy2010a,
  Title                    = {{Charting the microworld territory over time: design and construction in mathematics education}},
  Author                   = {Healy, L. and Kynigos, C.},
  Journal                  = {ZDM},
  Year                     = {2010},
  Number                   = {1},
  Pages                    = {63--76},
  Volume                   = {42},

  File                     = {/home/huub/Documents/Research/main/Sources/Healy2010a-Charting\_the\_microworld\_territory\_over\_time.pdf},
  Keywords                 = {ict; microworld; mathematics; papert; history; constructionism},
  Publisher                = {Springer}
}

@Article{Heer2012a,
  Title                    = {{Interactive Dynamics for Visual Analysis}},
  Author                   = {Heer, Jeffrey and Shneiderman, Ben},
  Journal                  = {Queue},
  Year                     = {2012},

  Month                    = feb,
  Number                   = {2},
  Pages                    = {30:30--30:55},
  Volume                   = {10},

  Acmid                    = {2146416},
  Address                  = {New York, NY, USA},
  Articleno                = {30},
  Doi                      = {10.1145/2133416.2146416},
  File                     = {/home/huub/Documents/Research/main/Sources/Heer2012a-Interactive\_dynamics\_for\_visual\_analysis.pdf},
  ISSN                     = {1542-7730},
  Issue_date               = {February 2012},
  Numpages                 = {26},
  Publisher                = {ACM},
  Url                      = {http://doi.acm.org/10.1145/2133416.2146416}
}

@InProceedings{Hegedus2004a,
  Title                    = {{An introduction to the profound potential of connected algebra activities: Issues of representation, engagement and pedagogy}},
  Author                   = {Hegedus, S and Kaput, J},
  Booktitle                = {{Proceedings of the 28th Conference of the International Group for the Psychology of Mathematics Education}},
  Year                     = {2004},
  Pages                    = {129--136},
  Volume                   = {3},

  File                     = {/home/huub/Documents/Research/main/Sources/Hegedus2004a-An\_introduction\_to\_the\_profound\_potential\_of\_connected\_algebra.pdf}
}

@InProceedings{Heid2006a,
  Title                    = {{Ways in which prospective secondary mathematics teachers deal with mathematical complexity}},
  Author                   = {Heid, M Kathleen and Lunt, Jana and Portnoy, Neil and Zembat, Ismail Ozgur},
  Booktitle                = {{28th annual meeting of the North American Chapter of the International Group for the Psychology of Mathematics Education M{\'e}rida, Mexico}},
  Year                     = {2006},
  Pages                    = {2--9},
  Volume                   = {2},

  File                     = {/home/huub/Documents/Research/main/Sources/Heid2006a-Ways\_in\_which\_prospecting\_secondary\_mathematics\_teachers\_deal\_with\_mathematical\_complexity.pdf},
  Keywords                 = {filling glasses; available}
}

@Article{Herbert2012a,
  Title                    = {{Revealing educationally critical aspects of rate}},
  Author                   = {Herbert, S. and Pierce, R.},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {2012},
  Number                   = {1},
  Pages                    = {85--101},
  Volume                   = {81},

  Doi                      = {10.1007/s10649-011-9368-4},
  File                     = {/home/huub/Documents/Research/main/Sources/Herbert2012a-Revealing\_educationally\_critical\_aspects\_of\_rate.pdf},
  ISSN                     = {0013-1954},
  Keywords                 = {Secondary school mathematics; Rate; Rate of change; Phenomenography; Educationally critical aspects; Calculus},
  Language                 = {English},
  Publisher                = {Springer Netherlands},
  Url                      = {http://dx.doi.org/10.1007/s10649-011-9368-4}
}

@Article{Herbert2011a,
  Title                    = {{What is rate? Does context or representation matter?}},
  Author                   = {Herbert, S. and Pierce, R.},
  Journal                  = {Mathematics Education Research Journal},
  Year                     = {2011},
  Pages                    = {455--477},
  Volume                   = {23},

  Doi                      = {10.1007/s13394-011-0026-z},
  File                     = {/home/huub/Documents/Research/main/Sources/Herbert2011a-What\_is\_rate-Does\_context\_or\_representation\_matter.pdf},
  ISSN                     = {1033-2170},
  Issue                    = {4},
  Keywords                 = {Secondary school mathematics; Rate; Speed; Representation; Pre-calculus; Educationally critical aspects},
  Language                 = {English},
  Url                      = {http://dx.doi.org/10.1007/s13394-011-0026-z}
}

@InProceedings{Herbert2009a,
  Title                    = {{Revealing conceptions of rate of change}},
  Author                   = {Herbert, S. and Pierce, R.},
  Booktitle                = {{Crossing divides: Proceedings of the 32nd annual conference of the Mathematics Education Research Group of Australasia}},
  Year                     = {2009},
  Pages                    = {217--224},

  File                     = {/home/huub/Documents/Research/main/Sources/Herbert2009a-Revealing\_conceptions\_of\_rate\_of\_change.pdf}
}

@Article{Herbert2008a,
  Title                    = {{An {\lq}Emergent Model{\rq}for Rate of Change}},
  Author                   = {Herbert, S. and Pierce, R.},
  Journal                  = {International Journal of Computers for Mathematical Learning},
  Year                     = {2008},
  Number                   = {3},
  Pages                    = {231--249},
  Volume                   = {13},

  File                     = {/home/huub/Documents/Research/main/Sources/Herbert2008a-An\_emergent\_model\_for\_rate\_of\_change.pdf},
  Keywords                 = {ict; motion domain; alternative domain; secondary education},
  Publisher                = {Springer}
}

@InProceedings{Herbert2005a,
  Title                    = {{Potential of technology and a familiar context to enhance students' concept of rate of change}},
  Author                   = {Herbert, S. and Pierce, R.},
  Booktitle                = {{MERGA 2005: Building connections: research, theory and practice: proceedings of the annual conference held at RMIT, Melbourne, 7th-9th July 2005}},
  Year                     = {2005},
  Pages                    = {435--442},

  File                     = {/home/huub/Documents/Research/main/Sources/Herbert2005a-Potential\_of\_technology\_and\_a\_familiar\_context\_to\_enhance\_students\_concept\_of\_rate\_of\_change.pdf}
}

@Article{Herheim2011a,
  Title                    = {{Verbal communication at a stand-alone computer}},
  Author                   = {Herheim, R. and Krumsvik, R.J. and others},
  Journal                  = {Journal for educational research online},
  Year                     = {2011},
  Number                   = {1},
  Pages                    = {29--55},
  Volume                   = {3},

  File                     = {/home/huub/Documents/Research/main/Sources/Herheim2011a-Verbal\_communication\_at\_a\_stand-alone\_computer.pdf}
}

@Article{Hestenes2006a,
  Title                    = {{Notes for a modeling theory of science, cognition and instruction}},
  Author                   = {Hestenes, D.},
  Year                     = {2006},
  Pages                    = {20--25},

  Booktitle                = {{Proceedings of the GIREP conference}},
  File                     = {/home/huub/Documents/Research/main/Sources/Hestenes2006a-Notes\_for\_a\_modeling\_theory\_of\_science\_cognition\_and\_instruction.pdf},
  Url                      = {http://www.girep.org/proceedings/conference2006/David_Hestenes_-_Notes_for_a_Modeling_Theory_of_Science,_Cognition_and_Instruction.pdf}
}

@InProceedings{Heuvel2001b,
  Title                    = {{Realistic mathematics education as work in progress}},
  Author                   = {van den Heuvel-Panhuizen, M.},
  Booktitle                = {{Common sense in mathematics education}},
  Year                     = {2001},
  Editor                   = {Lin, F.L.},

  Booktitleaddon           = {Proceedings of 2001 The Netherlands and Taiwan Conference on Mathematics Education, Taiwan, 19-23 November 2001},
  File                     = {/home/huub/Documents/Research/main/Sources/Heuvel2001b-Realistic\_mathematics\_education\_as\_work\_in\_progress.pdf},
  Url                      = {http://www.staff.science.uu.nl/~heuve108/download/vdHeuvel_2001_RME%20as%20work-in-progress.pdf}
}

@Article{Heuvel2003a,
  Title                    = {{The didactical use of models in realistic mathematics education: An example from a longitudinal trajectory on percentage}},
  Author                   = {van den Heuvel-Panhuizen, M.},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {2003},
  Number                   = {1},
  Pages                    = {9--35},
  Volume                   = {54},

  File                     = {/home/huub/Documents/Research/main/Sources/Heuvel2003a-The\_didactical\_use\_of\_models\_in\_RME.pdf},
  Publisher                = {Springer}
}

@InCollection{Heytesbury1335a,
  Author                   = {Heytesbury, William},
  Booktitle                = {{The Science of Mechanics in the Middle Ages}},
  Year                     = {1335},
  Editor                   = {Clagett, Marshall}
}

@Book{Hiele1986a,
  Title                    = {{Structure and insight. A theory of mathematics education}},
  Author                   = {van Hiele, Pierre M.},
  Publisher                = {Academic press},
  Year                     = {1986},

  Address                  = {London},

  Keywords                 = {van hiele}
}

@Article{Hipkins2005a,
  Title                    = {{Teaching the {\lq}nature of science{\rq}: modest adaptations or radical reconceptions?}},
  Author                   = {Hipkins, R. and Barker, M. and Bolstad, R.},
  Journal                  = {International Journal of Science Education},
  Year                     = {2005},
  Number                   = {2},
  Pages                    = {243--254},
  Volume                   = {27},

  Doi                      = {10.1080/0950069042000276758},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/0950069042000276758},
  File                     = {/home/huub/Documents/Research/main/Sources/Hipkins2005a-Teaching\_the\_nature\_of\_science-modest\_adaptations\_or\_radical\_reconceptions.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/0950069042000276758}
}

@Article{Hmelo2007a,
  Title                    = {{Scaffolding and achievement in problem-based and inquiry learning: A response to Kirschner, Sweller, and Clark (2006)}},
  Author                   = {Hmelo-Silver, Cindy E and Duncan, Ravit Golan and Chinn, Clark A},
  Journal                  = {Educational Psychologist},
  Year                     = {2007},
  Number                   = {2},
  Pages                    = {99--107},
  Volume                   = {42},

  File                     = {/home/huub/Documents/Research/main/Sources/Hmelo2007a-Scaffolding\_and\_achievement\_in\_problem-based\_and\_inquiry\_learning.pdf},
  Url                      = {http://www.usc.edu/dept/education/cogtech/publications/hmelo_ep07.pdf}
}

@InCollection{Hoadley2002a,
  Title                    = {{Creating context: Design-based research in creating and understanding CSCL}},
  Author                   = {Hoadley, C.P.},
  Booktitle                = {{Proceedings of the Conference on Computer Support for Collaborative Learning: Foundations for a CSCL Community}},
  Year                     = {2002},
  Pages                    = {453--462},

  File                     = {/home/huub/Documents/Research/main/Sources/Hoadley2002a-Creating\_context-Design-based\_research\_in\_creating\_and\_understanding\_CSCL.pdf},
  Keywords                 = {design research; ict},
  Organization             = {International Society of the Learning Sciences}
}

@Article{Hodson2006a,
  Title                    = {{Why we should prioritize learning about science}},
  Author                   = {Hodson, D.},
  Journal                  = {Canadian Journal of Math, Science \& Technology Education},
  Year                     = {2006},
  Number                   = {3},
  Pages                    = {293--311},
  Volume                   = {6},

  File                     = {/home/huub/Documents/Research/main/Sources/Hodson2006a-Why\_we\_should\_prioritize\_learning\_about\_science.pdf}
}

@Article{Hodson2003a,
  Title                    = {{Time for action: Science education for an alternative future}},
  Author                   = {Hodson, D.},
  Journal                  = {International Journal of Science Education},
  Year                     = {2003},
  Number                   = {6},
  Pages                    = {645--670},
  Volume                   = {25},

  Doi                      = {10.1080/09500690305021},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/09500690305021},
  File                     = {/home/huub/Documents/Research/main/Sources/Hodson2003a-Time\_for\_action-Science\_education\_for\_an\_alternative\_future.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/09500690305021}
}

@InProceedings{Hogue2013a,
  Title                    = {{Epistemological Foundations of Educational Design Research}},
  Author                   = {Hogue, Rebecca J},
  Booktitle                = {{World Conference on E-Learning in Corporate, Government, Healthcare, and Higher Education}},
  Year                     = {2013},
  Number                   = {1},
  Pages                    = {1915--1922},
  Volume                   = {2013},

  File                     = {/home/huub/Documents/Research/main/Sources/Hogue2013a-Epistemological\_foundations\_of\_educational\_design\_research.pdf}
}

@Article{Howe2000a,
  Title                    = {{Hypothesis testing in science: group consensus and the acquisition of conceptual and procedural knowledge}},
  Author                   = {Howe, Christine and Tolmie, Andy and Duchak-Tanner, Val and Rattray, Catherine},
  Journal                  = {Learning and Instruction},
  Year                     = {2000},
  Number                   = {4},
  Pages                    = {361--391},
  Volume                   = {10},

  Doi                      = {10.1016/S0959-4752(00)00004-9},
  File                     = {/home/huub/Documents/Research/main/Sources/Howe2000a-Hypothesis\_testing\_in\_science-group\_consensus\_and\_the\_acquisition\_of\_conceptual\_and\_procedural\_knowledge.pdf},
  ISSN                     = {0959-4752},
  Url                      = {http://www.sciencedirect.com/science/article/pii/S0959475200000049}
}

@Article{Hoyles2008a,
  Title                    = {{Next steps in implementing Kaput{\rq}s research programme}},
  Author                   = {Hoyles, C. and Noss, R.},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {2008},
  Number                   = {2},
  Pages                    = {85--97},
  Volume                   = {68},

  File                     = {/home/huub/Documents/Research/main/Sources/Hoyles2008a-Next\_steps\_in\_implementing\_Kaputs\_research\_programme.pdf}
}

@InCollection{Hoyles2003a,
  Title                    = {{What can digital technologies take from and bring to research in mathematics education}},
  Author                   = {Hoyles, C. and Noss, R.},
  Booktitle                = {{Second international handbook of mathematics education}},
  Year                     = {2003},
  Pages                    = {323--349},
  Volume                   = {1},

  File                     = {/home/huub/Documents/Research/main/Sources/Hoyles2003a-What\_can\_digital\_technologies\_take\_and\_bring.pdf},
  Keywords                 = {ict; mathematics; programming; microworld; simulation}
}

@Article{Hoyles2002a,
  Title                    = {{Rethinking the microworld idea}},
  Author                   = {Hoyles, C. and Noss, R. and Adamson, R.},
  Journal                  = {Journal of educational computing research},
  Year                     = {2002},
  Number                   = {1},
  Pages                    = {29--53},
  Volume                   = {27},

  File                     = {/home/huub/Documents/Research/main/Sources/Hoyles2002a-Rethinkin\_the\_microworld\_idea.pdf},
  Keywords                 = {microworld; ict; primary education},
  Publisher                = {Baywood}
}

@Article{Humphreys2009a,
  Title                    = {{The philosophical novelty of computer simulation methods}},
  Author                   = {Humphreys, Paul},
  Journal                  = {Synthese},
  Year                     = {2009},
  Number                   = {3},
  Pages                    = {615--626},
  Volume                   = {169},

  Doi                      = {10.1007/s11229-008-9435-2},
  File                     = {/home/huub/Documents/Research/main/Sources/Humphreys2009a-The\_philosophical\_novelty\_of\_computer\_simulation\_methods.pdf},
  ISSN                     = {0039-7857},
  Keywords                 = {Computer simulations; Computational science; Epistemic opacity; Semantics; Temporal dynamics; Approximations},
  Language                 = {English},
  Publisher                = {Springer Netherlands},
  Url                      = {http://dx.doi.org/10.1007/s11229-008-9435-2}
}

@Misc{Hunt2010a,
  Title                    = {{Go with the flow: Describing storm water runoff rates using the derivative}},

  Author                   = {Hunt, Brad and Lamendella, Regina and Garrison, Sara and Burrows, Andrea and Borowczak, Mike and Kukreti, Anant},
  Year                     = {2010},

  File                     = {/home/huub/Documents/Research/main/Sources/Hunt2010a-Go\_with\_the\_flow-describing\_storm\_water\_runoff\_rates\_using\_the\_derivative.pdf},
  Journal                  = {American Society for Engineering Education},
  Url                      = {https://www.uwplatt.edu/~buechlerd/AC2010-2133.pdf}
}

@TechReport{IvhO2010a,
  Title                    = {{Onderwijsverslag 2008/2009}},
  Author                   = {{Inspectie van het Onderwijs}},
  Institution              = {Inspectie van het Onderwijs},
  Year                     = {2010},

  Url                      = {http://www.rijksoverheid.nl/bestanden/documenten-en-publicaties/publicaties-pb51/onderwijsverslag-2008-2009/de-staat-van-het-onderwijs.pdf}
}

@TechReport{IvhO2005a,
  Title                    = {{Techniek in het basisonderwijs}},
  Author                   = {{Inspectie van het Onderwijs}},
  Institution              = {Inspectie van het Onderwijs},
  Year                     = {2005},

  Keywords                 = {science; primary education},
  Url                      = {http://www.onderwijsinspectie.nl/binaries/content/assets/Actueel_publicaties/2005/Techniek+in+het+basisonderwijs.pdf}
}

@Unpublished{IAP2003a,
  Title                    = {{2003 Statement: Science Education}},
  Author                   = {Issues, Inter Academy Panel on International},
  Year                     = {2003},

  Url                      = {http://www.interacademies.net/default.aspx?id=7886}
}

@Article{Jablonka2010a,
  Title                    = {{Theorising in mathematics education research: differences in modes and quality}},
  Author                   = {Jablonka, E. and Bergsten, C.},
  Journal                  = {Nordisk matematikkdidaktikk},
  Year                     = {2010},
  Number                   = {1},
  Pages                    = {25--52},
  Volume                   = {15},

  File                     = {/home/huub/Documents/Research/main/Sources/Jablonka2010a-Theorising\_in\_mathematics\_education\_research.pdf},
  ISSN                     = {1104-2176},
  Keywords                 = {mathematics; theory},
  Url                      = {http://pure.ltu.se/portal/files/4735209/Theorising_in_mathematics_education_research.pdf}
}

@Article{Jacobson2006a,
  Title                    = {{Complex systems in education: Scientific and educational importance and implications for the learning sciences}},
  Author                   = {Jacobson, M.J. and Wilensky, U.},
  Journal                  = {Journal of the Learning Sciences},
  Year                     = {2006},
  Number                   = {1},
  Pages                    = {11--34},
  Volume                   = {15},

  File                     = {/home/huub/Documents/Research/main/Sources/Jacobson2006a-Complex\_systems\_in\_education.pdf},
  Publisher                = {Routledge}
}

@Article{Jankvist2009a,
  Title                    = {{A categorization of the ``whys'' and ``hows'' of using history in mathematics education}},
  Author                   = {Jankvist, U.T.},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {2009},
  Number                   = {3},
  Pages                    = {235--261},
  Volume                   = {71},

  File                     = {/home/huub/Documents/Research/main/Sources/Jankvist2009a-A\_categorization\_of\_the\_whys\_and\_hows\_of\_using\_history\_in\_math\_educ.pdf},
  Keywords                 = {history; mathematics; theory},
  Publisher                = {Springer}
}

@InCollection{Janvier1987b,
  Title                    = {{Translation processes in mathematics education}},
  Author                   = {Janvier, Claude},
  Booktitle                = {{Problems of representation in the teaching and learning of mathematics}},
  Year                     = {1987},
  Chapter                  = {3},
  Editor                   = {Janvier, Claude},
  Pages                    = {27--32},

  File                     = {/home/huub/Documents/Research/main/Sources/Janvier1987b-Translation\_processes\_in\_mathematics\_education.pdf}
}

@InCollection{janvier1987c,
  Title                    = {{Representation and understanding: the notion of function as an example}},
  Author                   = {Janvier, Claude},
  Booktitle                = {{Problems of representation in the teaching and learning of mathematics}},
  Year                     = {1987},
  Chapter                  = {7},
  Editor                   = {Janvier, Claude},
  Pages                    = {67--71}
}

@InCollection{Janvier1987d,
  Title                    = {{Conceptions and representations: the circle as an example}},
  Author                   = {Janvier, Claude},
  Booktitle                = {{Problems of representation in the teaching and learning of mathematics}},
  Year                     = {1987},
  Chapter                  = {13},
  Editor                   = {Janvier, Claude},
  Pages                    = {147--158},

  File                     = {/home/huub/Documents/Research/main/Sources/Janvier1987d-Conceptions\_and\_representations-the\_circle\_as\_an\_example.pdf}
}

@Article{Janvier1981a,
  Title                    = {{Use of situations in mathematics education}},
  Author                   = {Janvier, Claude},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {1981},
  Number                   = {1},
  Pages                    = {113--122},
  Volume                   = {12},

  Doi                      = {10.1007/BF00386049},
  File                     = {/home/huub/Documents/Research/main/Sources/Janvier1981a-Use\_of\_situations\_in\_mathematics\_education.pdf},
  ISSN                     = {0013-1954},
  Language                 = {English},
  Publisher                = {Kluwer Academic Publishers},
  Url                      = {http://dx.doi.org/10.1007/BF00386049}
}

@InProceedings{Jermann2001a,
  Title                    = {{From mirroring to guiding: A review of the state of art technology for supporting collaborative learning}},
  Author                   = {Jermann, P. and Soller, A. and Muehlenbrock, M. and others},
  Booktitle                = {{Proceedings of the European Conference on Computer-Supported Collaborative Learning EuroCSCL-2001. Maastricht, The Netherlands}},
  Year                     = {2001},
  Pages                    = {324--331},

  File                     = {/home/huub/Documents/Research/main/Sources/Jermann2001a-From\_mirroring\_to\_guiding.pdf}
}

@InCollection{Johnson2012b,
  Title                    = {{Reasoning about quantities involved in rate of change as varying simultaneously and independently}},
  Author                   = {Johnson, Heather L.},
  Booktitle                = {{Quantitative reasoning and Mathematical Modeling: A Driver for STEM Integrated Education and Teaching in Context}},
  Year                     = {2012},
  Editor                   = {Mayes, R. and Bonillia, R. and Hatfield, L. L. and Belbase, S.},
  Pages                    = {39--53},

  File                     = {/home/huub/Documents/Research/main/Sources/Johnson2012b-Reasoning\_about\_quantities\_involved\_in\_rate\_of\_change\_as\_varying\_simultaneously\_and\_independently.pdf},
  Url                      = {http://www.uwyo.edu/wisdome/_files/documents/johnson.pdf}
}

@InProceedings{Johnson2013a,
  Title                    = {{Using images of intensive and extensive quantity to extend a covariation framework}},
  Author                   = {Johnson, Heather Lynn},
  Year                     = {2013},

  File                     = {/home/huub/Documents/Research/main/Sources/Johnson2013a-Intentsive\_and\_extensive.pdf}
}

@Article{Johnson2012a,
  Title                    = {{Reasoning about variation in the intensity of change in covarying quantities involved in rate of change}},
  Author                   = {Johnson, Heather L.},
  Journal                  = {The Journal of Mathematical Behavior},
  Year                     = {2012},
  Number                   = {3},
  Pages                    = {313--330},
  Volume                   = {31},

  Doi                      = {10.1016/j.jmathb.2012.01.001},
  File                     = {/home/huub/Documents/Research/main/Sources/Johnson2012a-Reasoning\_about\_variation\_in\_the\_intensity\_of\_change\_in\_covarying\_quantities\_involved\_in\_rate\_of\_change.pdf},
  ISSN                     = {0732-3123},
  Url                      = {http://www.sciencedirect.com/science/article/pii/S0732312312000132}
}

@InProceedings{Johnson2011a,
  Title                    = {{Secondary students{\rq} quantification of variation in rate of change}},
  Author                   = {Johnson, Heather L},
  Booktitle                = {{Proceedings of the 33rd annual meeting of the North American Chapter of the International Group for the Psychology of Mathematics Education. Reno, NV: University of Nevada, Reno}},
  Year                     = {2011},

  File                     = {/home/huub/Documents/Research/main/Sources/Johnson2011a-Secondary\_students\_quantification\_of\_variation\_in\_rate\_of\_change.pdf},
  Keywords                 = {filling glasses; available}
}

@InCollection{Jonassen2006a,
  Title                    = {{Modeling for meaningful learning}},
  Author                   = {Jonassen, David H and Strobel, Johannes},
  Booktitle                = {{Engaged learning with emerging technologies}},
  Year                     = {2006},
  Pages                    = {1--27},

  File                     = {/home/huub/Documents/Research/main/Sources/Jonassen2006a-Modeling\_for\_meaningful\_learning.pdf},
  Url                      = {http://www.msu.ac.zw/elearning/material/1354783745Jonassen_strobel_modeling_2006.pdf}
}

@InCollection{Jones1971a,
  Title                    = {{The nature of measurement}},
  Author                   = {Jones, L.V.},
  Booktitle                = {{Educational Measurement}},
  Publisher                = {American Council on Education},
  Year                     = {1971},

  Address                  = {Washington},
  Edition                  = {2nd},
  Editor                   = {Thorndike, R.L.},

  File                     = {/home/huub/Documents/Research/main/Sources/Jones1971a-The\_nature\_of\_measurement.pdf}
}

@InCollection{Jones2000a,
  Title                    = {{Animated diagrams: An investigation into the cognitive effects of using animation to illustrate dynamic processes}},
  Author                   = {Jones, S. and Scaife, M.},
  Booktitle                = {{Theory and Application of Diagrams}},
  Publisher                = {Springer},
  Year                     = {2000},

  Address                  = {Berlin},
  Editor                   = {Anderson, M. and Cheng, P.},
  Number                   = {1889},
  Pages                    = {295--307},

  File                     = {/home/huub/Documents/Research/main/Sources/Jones2000a-Animated\_diagrams-An\_investigation\_into\_the\_cognitive\_effects\_of\_using\_animation\_to\_illustrate\_dynamic\_processes.pdf},
  Keywords                 = {ict},
  Url                      = {http://www.sussex.ac.uk/Users/sarap/pdfs/Price\_diagrams2000.pdf}
}

@Article{Jong1998a,
  Title                    = {{Scientific Discovery Learning With Computer Simulations of Conceptual Domains}},
  Author                   = {de Jong, T. and van Joolingen, W.R.},
  Journal                  = {Review of Educational Research},
  Year                     = {1998},
  Number                   = {2},
  Pages                    = {179--201},
  Volume                   = {68},

  File                     = {/home/huub/Documents/Research/main/Sources/Jong1998a-Scientific\_discovery\_learning\_with\_computer\_simulations.pdf},
  Keywords                 = {ict; simulation; theory}
}

@Article{Joram2004a,
  Title                    = {{"As People Get Older, They Get Taller"}},
  Author                   = {Joram, E. and Hartman, C. and Trafton, P.},
  Journal                  = {Teaching Children Mathematics},
  Year                     = {2004},
  Pages                    = {345},

  File                     = {/home/huub/Documents/Research/main/Sources/Joram2004a-As\_people\_get\_older\_they\_get\_taller.pdf},
  Keywords                 = {primary education; mathematics; alternative domain},
  Url                      = {http://www.math.ccsu.edu/mitchell/math409tcmaspeoplegetoldertheygettaller.pdf}
}

@Article{Justi2002a,
  Title                    = {{Modelling, teachers' views on the nature of modelling, and implications for the education of modellers}},
  Author                   = {Justi, R. and Gilbert, J.},
  Journal                  = {International Journal of Science Education},
  Year                     = {2002},
  Number                   = {4},
  Pages                    = {369--387},
  Volume                   = {24},

  File                     = {/home/huub/Documents/Research/main/Sources/Justi2002a-Modelling\_teachers\_views\_on\_the\_nature\_of\_modelling\_and\_implications\_for\_the\_education\_of\_modellers.pdf}
}

@InCollection{Kafai1991a,
  Title                    = {{Learning through design and teaching: exploring social and collaborative aspects of constructionism}},
  Author                   = {Kafai, Yasmin and Harel, Idit},
  Booktitle                = {{Constructionism}},
  Year                     = {1991},
  Editor                   = {Harel, Idit and Papert, Seymour},
  Pages                    = {85--110},

  File                     = {/home/huub/Documents/Research/main/Sources/Kafai1991a-Learning\_through\_design\_and\_teaching.pdf}
}

@InCollection{Kafai1991b,
  Title                    = {{Children learning through consulting: when mathematical ideas, knowledge of programming and design, and playful discourse are intertwined}},
  Author                   = {Kafai, Yasmin and Harel, Idit},
  Booktitle                = {{Constructionism}},
  Year                     = {1991},
  Editor                   = {Harel, Idit and Papert, Seymour},
  Pages                    = {111--140},

  File                     = {/home/huub/Documents/Research/main/Sources/Kafai1991b-Learning\_through\_consulting.pdf}
}

@InCollection{Kaput1994c,
  Title                    = {{The representational roles of technology in connecting mathematics with authentic experience}},
  Author                   = {Kaput, J.},
  Booktitle                = {{Didactics of mathematics as a scientific discipline}},
  Year                     = {1994},
  Editor                   = {Biehler, R. and Scholz, R.W. and Str{\"a}{\ss}er, R. and Winkelmann, B.},
  Pages                    = {379--397},

  File                     = {/home/huub/Documents/Research/main/Sources/Kaput1994c-The\_representational\_roles\_of\_technology\_in\_connecting\_mathematics\_with\_authentic\_experience.pdf}
}

@InCollection{Kaput1994a,
  Title                    = {{Democratizing access to calculus: New routes to old roots}},
  Author                   = {Kaput, J.},
  Booktitle                = {{Mathematical Thinking and Problem-Solving}},
  Publisher                = {Lawrence Erlbaum},
  Year                     = {1994},

  Address                  = {Hillsdale},
  Editor                   = {Schoenfeld, A.},
  Pages                    = {77--156},

  File                     = {/home/huub/Documents/Research/main/Sources/Kaput1994a-Democratizing\_access\_to\_calculus.pdf},
  Keywords                 = {calculus}
}

@Article{Kaput1998a,
  Title                    = {{Representations, Inscriptions, Descriptions and Learning: A Kaleidoscope of Windows}},
  Author                   = {Kaput, J.},
  Journal                  = {The Journal of Mathematical Behaviour},
  Year                     = {1998},
  Number                   = {2},
  Pages                    = {265--281},
  Volume                   = {17},

  File                     = {/home/huub/Documents/Research/main/Sources/Kaput1998a-The\_mathematics\_of\_change\_and\_variation\_from\_a\_millennial\_perspective-New\_contet\_new\_context.pdf},
  Keywords                 = {representation},
  Localfile                = {/home/huub/to-research/Sources/Kaput1998a-Representations_Inscriptions_Descriptions_and_Learning-A_Kaleidoscope_of_Windows.pdf}
}

@Article{Kaput1997a,
  Title                    = {{Rethinking Calculus: Learning and Thinking}},
  Author                   = {Kaput, J.},
  Journal                  = {The American Mathematical Monthly},
  Year                     = {1997},
  Number                   = {8},
  Pages                    = {pp. 731--737},
  Volume                   = {104},

  File                     = {/home/huub/Documents/Research/main/Sources/Kaput1997a-Rethinking\_calculus-learning\_and\_thinking.pdf},
  ISSN                     = {00029890},
  Jstor_formatteddate      = {Oct., 1997},
  Keywords                 = {calculus; history; ict; middle school; secondary education; primary education},
  Language                 = {English},
  Publisher                = {Mathematical Association of America},
  Url                      = {http://www.jstor.org/stable/2975238}
}

@Electronic{Kaput2005a,
  Title                    = {{Planning documents for a national initiative on complex systems in k-16 education}},
  Author                   = {Kaput, J. and Bar-Yam, Y. and Jacobson, M. and Jakobsson, E. and Lemke, J. and Wilensky, U.},
  Url                      = {http://www.necsi.edu/events/cxedk16/cxedk16.html},
  Year                     = {2005},

  Keywords                 = {complexity}
}

@InCollection{Kaput2002a,
  Title                    = {{Developing new notations for a learnable mathematics in the computational era}},
  Author                   = {Kaput, J. and Noss, R. and Hoyles, C.},
  Booktitle                = {{Handbook of international research in mathematics education}},
  Year                     = {2002},
  Pages                    = {51--75},

  File                     = {/home/huub/Documents/Research/main/Sources/Kaput2002a-Developing\_new\_notations\_for\_a\_learnable\_mathematics\_in\_the\_computational\_era.pdf},
  Keywords                 = {ict; history; mathematics; representation}
}

@InCollection{Kaput1998b,
  Title                    = {{The mathematics of change and variation from a millennial perspective: New content, new context}},
  Author                   = {Kaput, J. and Roschelle, J.},
  Booktitle                = {{Mathematics for a new millennium}},
  Publisher                = {Springer-Verlag},
  Year                     = {1998},

  Address                  = {London},
  Editor                   = {Hoyles, C. and Morgan, C. and Woodhouse, G.},
  Pages                    = {155--170},

  Keywords                 = {representation; graph; ict; motion domain; history; calculus; middle school},
  Url                      = {http://ctl.sri.com/publications/downloads/Millenium_preprint.pdf}
}

@InCollection{Kaput2007a,
  Title                    = {{Changing representational infrastructures chages most everything: the case of SimCalc, algebra and calculus}},
  Author                   = {Kaput, J. and Schorr, Roberta},
  Booktitle                = {{Research on technology in the learning and teaching of mathematics}},
  Publisher                = {Erlbaum},
  Year                     = {2007},

  Address                  = {Mahwah, NJ},
  Editor                   = {Blume, G. and Heid, K.},
  Pages                    = {211--253},

  File                     = {/home/huub/Documents/Research/main/Sources/Kaput2007a-Changing\_representational\_infrastructures\_changes\_most\_everything.pdf},
  Keywords                 = {ict; calculus; graph; compound variable quantities; secondary education; motion domain; history},
  Url                      = {http://www.kaputcenter.umassd.edu/downloads/simcalc/cc1/library/changinginfrastruct.pdf}
}

@Article{Kaput1994b,
  Title                    = {{Technology in mathematics education research: The first 25 years in the JRME}},
  Author                   = {Kaput, J. and Thompson, P.},
  Journal                  = {Journal for Research in Mathematics Education},
  Year                     = {1994},
  Number                   = {6},
  Pages                    = {676--684},
  Volume                   = {25},

  File                     = {/home/huub/Documents/Research/main/Sources/Kaput1994b-Technology\_in\_mathematics\_education\_research.pdf},
  Keywords                 = {ict; theory; mathematics},
  Publisher                = {JSTOR}
}

@InCollection{Kelly2013a,
  Title                    = {{When is design research appropriate?}},
  Author                   = {Kelly, A.E.},
  Booktitle                = {{Educational Design Research}},
  Publisher                = {SLO},
  Year                     = {2013},
  Editor                   = {Plomp, T. and Nieveen, N.},
  Pages                    = {135--150},
  Volume                   = {A},

  File                     = {/home/huub/Documents/Research/main/Sources/Nieveen2013a-Educational\_design\_research.pdf},
  Url                      = {http://international.slo.nl/edr}
}

@Article{Kelly2004a,
  Title                    = {{Design research in education: Yes, but is it methodological?}},
  Author                   = {Kelly, A.},
  Journal                  = {Journal of the Learning Sciences},
  Year                     = {2004},
  Number                   = {1},
  Pages                    = {115--128},
  Volume                   = {13},

  File                     = {/home/huub/Documents/Research/main/Sources/Kelly2004a-Design\_research\_in\_education-Yes\_but\_is\_it\_methodological.pdf},
  Keywords                 = {design research},
  Publisher                = {Routledge}
}

@Article{Kelly2003a,
  Title                    = {{Theme issue: The role of design in educational research}},
  Author                   = {Kelly, A.E.},
  Journal                  = {Educational Researcher},
  Year                     = {2003},
  Number                   = {1},
  Pages                    = {3--4},
  Volume                   = {32},

  File                     = {/home/huub/Documents/Research/main/Sources/Kelly2003a-Theme\_issue-The\_role\_of\_design\_in\_educational\_research.pdf},
  Keywords                 = {design research}
}

@Article{Kelly2007a,
  Title                    = {{A reflective discourse on science learning and the merits of simulation}},
  Author                   = {Kelly, Janet and Bradley, C and Gratch, J and Maninger, R},
  Journal                  = {Journal of thought},
  Year                     = {2007},
  Number                   = {2},
  Pages                    = {23--38},
  Volume                   = {42},

  File                     = {/home/huub/Documents/Research/main/Sources/Kelly2007a-A\_reflective\_discourse\_on\_science\_learning\_and\_the\_merits\_of\_simulation.pdf}
}

@Article{Kennewell2007a,
  Title                    = {{The features of interactive whiteboards and their influence on learning}},
  Author                   = {Kennewell, S. and Beauchamp, G.},
  Journal                  = {Learning, Media and Technology},
  Year                     = {2007},
  Number                   = {3},
  Pages                    = {227--241},
  Volume                   = {32},

  File                     = {/home/huub/Documents/Research/main/Sources/Kennewell2007a-The\_features\_of\_interactive\_whiteboards\_and\_their\_influence\_on\_learning.pdf},
  Keywords                 = {ict},
  Publisher                = {Routledge}
}

@Article{Keogh1999a,
  Title                    = {{Concept cartoons, teaching and learning in science: an evaluation}},
  Author                   = {Keogh, Brenda and Naylor, Stuart},
  Journal                  = {International Journal of Science Education},
  Year                     = {1999},
  Number                   = {4},
  Pages                    = {431--446},
  Volume                   = {21},

  Doi                      = {10.1080/095006999290642},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/095006999290642},
  File                     = {/home/huub/Documents/Research/main/Sources/Keogh1999a-Concepts\_cartoons\_teaching\_and\_larning\_in\_science-an\_evaluation.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/095006999290642}
}

@Book{Keulen2009a,
  Title                    = {{Drijven en Zinken. Wetenschap en techniek in het primair onderwijs}},
  Author                   = {van Keulen, Hanno},
  Publisher                = {Fontys Hogescholen},
  Year                     = {2009},
  Note                     = {oratie 26 juni 2009},

  File                     = {/home/huub/Documents/Research/main/Sources/Keulen2009a-Drijven\_en\_zinken-Wetenschap\_en\_techniek\_in\_het\_primair\_onderwijs.pdf},
  Keywords                 = {primary education; science; teacher},
  Url                      = {http://www.ecent.nl/servlet/supportBinaryFiles?referenceId=1&supportId=1969}
}

@Article{Kim2011a,
  Title                    = {{Scaffolding 6th graders{\rq} problem solving in technology-enhanced science classrooms: a qualitative case study}},
  Author                   = {Kim, M.C. and Hannafin, M.J.},
  Journal                  = {Instructional science},
  Year                     = {2011},
  Number                   = {3},
  Pages                    = {255--282},
  Volume                   = {39},

  File                     = {/home/huub/Documents/Research/main/Sources/Kim2011a-Scaffolding\_6th\_graders\_problem\_solving\_in\_technology-enhanced\_science\_classrooms.pdf},
  Publisher                = {Springer}
}

@Article{Kind2009a,
  Title                    = {{Pedagogical content knowledge in science education: perspectives and potential for progress}},
  Author                   = {Kind, Vanessa},
  Journal                  = {Studies in Science Education},
  Year                     = {2009},
  Number                   = {2},
  Pages                    = {169--204},
  Volume                   = {45},

  Doi                      = {10.1080/03057260903142285},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/03057260903142285},
  File                     = {/home/huub/Documents/Research/main/Sources/Kind2009a-Pedagogical\_content\_knowledge\_in\_science\_education-perspectives\_and\_potential\_for\_progress.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/03057260903142285}
}

@Article{King2002a,
  Title                    = {{Structuring peer interaction to promote high-level cognitive processing}},
  Author                   = {King, A.},
  Journal                  = {Theory into Practice},
  Year                     = {2002},
  Number                   = {1},
  Pages                    = {33--39},
  Volume                   = {41},

  File                     = {/home/huub/Documents/Research/main/Sources/King2002a-Structuring\_peer\_interaction\_to\_promote\_high-level\_cognitive\_processes.pdf}
}

@Article{Kirschner2006a,
  Title                    = {{Why Minimal Guidance During Instruction Does Not Work: An Analysis of the Failure of Constructivist, Discovery, Problem-Based, Experiential, and Inquiry-Based Teaching}},
  Author                   = {Kirschner, Paul A. and Sweller, John and Clark, Richard E.},
  Journal                  = {Educational Psychologist},
  Year                     = {2006},
  Number                   = {2},
  Pages                    = {75--86},
  Volume                   = {41},

  Doi                      = {10.1207/s15326985ep4102_1},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1207/s15326985ep4102\_1},
  File                     = {/home/huub/Documents/Research/main/Sources/Kirschner2006a-Why\_minimal\_guidance\_during\_instruction\_does\_not\_work.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1207/s15326985ep4102_1}
}

@Article{Kleiner1989a,
  Title                    = {{Evolution of the Function Concept: A Brief Survey}},
  Author                   = {Kleiner, Israel},
  Journal                  = {The College Mathematics Journal},
  Year                     = {1989},
  Number                   = {4},
  Pages                    = {282--300},
  Volume                   = {20},

  File                     = {/home/huub/Documents/Research/main/Sources/Kleiner1989a-Evolution\_of\_the\_function\_concept-A\_brief\_survey.pdf},
  Url                      = {http://stellasbuds.com/classes/assets/a_evfcn.pdf}
}

@Article{Knowlton2007a,
  Title                    = {{I design; therefore I research: Revealing DBR through personal narrative}},
  Author                   = {Knowlton, D.S.},
  Journal                  = {JOURNAL OF EDUCATIONAL TECHNOLOGYAND SOCIETY},
  Year                     = {2007},
  Number                   = {4},
  Pages                    = {209},
  Volume                   = {10},

  File                     = {/home/huub/Documents/Research/main/Sources/Knowlton2007a-I\_design\_therfore\_I\_research.pdf},
  ISSN                     = {1176-3647},
  Keywords                 = {design research},
  Publisher                = {IFETS}
}

@Article{Kock2011a,
  Title                    = {{Some key issues in creating inquiry-based instructional practices that aim at the understanding of simple electric circuits}},
  Author                   = {Kock, Z. and Taconis, R. and Bolhuis, S. and Gravemeijer, K.},
  Journal                  = {Research in Science Education},
  Year                     = {2013},
  Pages                    = {1--19},

  File                     = {/home/huub/Documents/Research/main/Sources/Kock2011a-Some\_key\_issues\_in\_creating\_inquiry-based\_instructional\_practices\_that\_aim\_at\_the\_understanding\_of\_simple\_electric\_circuits.pdf},
  Publisher                = {Springer},
  Url                      = {http://link.springer.com/article/10.1007/s11165-011-9278-6/fulltext.html}
}

@PhdThesis{Koklu2007a,
  Title                    = {{An investigation of college students' covariational reasonings}},
  Author                   = {Koklu, O.},
  School                   = {Florida State University},
  Year                     = {2007},

  File                     = {/home/huub/Documents/Research/main/Sources/Koklu2007a-An\_investigation\_of\_college\_students\_covariational\_reasonings.pdf},
  Keywords                 = {higher education; compound variable quantities; calculus},
  Publisher                = {The Florida State University},
  Url                      = {http://etd.lib.fsu.edu/theses/available/etd-07082007-234700/unrestricted/okokludissertation.pdf}
}

@Article{Kolovou2009a,
  Title                    = {{Non-routine problem solving tasks in primary school mathematics textbooks--A needle in a haystack}},
  Author                   = {Kolovou, Angeliki and {Van den Heuvel-Panhuizen}, Marja and Bakker, Arthur},
  Journal                  = {Mediterranean Journal for Research in Mathematics Education},
  Year                     = {2009},
  Number                   = {2},
  Pages                    = {31--68},
  Volume                   = {8},

  File                     = {/home/huub/Documents/Research/main/Sources/Kolovou2009a-Non-routine\_problem\_solving\_tasks\_in\_primary\_school\_mathematics\_textbooks.pdf},
  Url                      = {http://www.staff.science.uu.nl/~heuve108/download/Kolovou-vdHeuvel-Bakker_2009_MJRME_textbook-analysis-problemsolving.pdf}
}

@Article{Komorek2004a,
  Title                    = {{The teaching experiment as a powerful method to develop and evaluate teaching and learning sequences in the domain of non-linear systems}},
  Author                   = {Komorek, M. and Duit, R.},
  Journal                  = {International Journal of Science Education},
  Year                     = {2004},
  Pages                    = {619--633},
  Volume                   = {26},

  File                     = {/home/huub/Documents/Research/main/Sources/Komorek2004a-The\_teaching\_experiment\_as\_a\_powerful\_method\_to\_develop\_and\_evaluate\_teaching\_and\_learning\_sequences.pdf},
  ISSN                     = {0950-0693},
  Keywords                 = {teaching experiment; science; secondary education}
}

@Article{Kramarski1999a,
  Title                    = {{The Study Of Graphs By Computers: Is Easier Better?}},
  Author                   = {Kramarski, B.},
  Journal                  = {Educational Media International},
  Year                     = {1999},
  Number                   = {3},
  Pages                    = {203--209},
  Volume                   = {36},

  File                     = {/home/huub/Documents/Research/main/Sources/Kramarski1999a-The\_study\_of\_graphs\_by\_computer-Is\_easier\_better.pdf},
  Keywords                 = {graph; ict; draw graph; secondary education},
  Publisher                = {Routledge}
}

@Article{Krefting1990a,
  Title                    = {{Rigor in qualitative research: The assessment of trustworthiness}},
  Author                   = {Krefting, L.},
  Journal                  = {American journal of occupational therapy},
  Year                     = {1991},
  Number                   = {3},
  Pages                    = {214--222},
  Volume                   = {45},

  Publisher                = {American Occupational Therapy Association}
}

@Article{Kreijns2003a,
  Title                    = {{Identifying the pitfalls for social interaction in computer-supported collaborative learning environments: a review of the research}},
  Author                   = {Kreijns, K. and Kirschner, P.A. and Jochems, W.},
  Journal                  = {Computers in human behavior},
  Year                     = {2003},
  Number                   = {3},
  Pages                    = {335--353},
  Volume                   = {19},

  File                     = {/home/huub/Documents/Research/main/Sources/Kreijns2003a-Identifying\_the\_pitfalls\_for\_social\_interaction\_in\_cscl\_environments.pdf}
}

@InCollection{Kruja2002a,
  Title                    = {{A Short Note on the History of Graph Drawing}},
  Author                   = {Kruja, Eriola and Marks, Joe and Blair, Ann and Waters, Richard},
  Booktitle                = {{Graph Drawing}},
  Publisher                = {Springer Berlin Heidelberg},
  Year                     = {2002},
  Editor                   = {Mutzel, Petra and J{\"u}nger, Michael and Leipert, Sebastian},
  Pages                    = {272--286},
  Series                   = {{Lecture Notes in Computer Science}},
  Volume                   = {2265},

  Doi                      = {10.1007/3-540-45848-4_22},
  File                     = {/home/huub/Documents/Research/main/Sources/Kruja2002a-A\_short\_note\_on\_the\_history\_of\_graphing.pdf},
  ISBN                     = {978-3-540-43309-5},
  Language                 = {English},
  Url                      = {http://dx.doi.org/10.1007/3-540-45848-4_22}
}

@Article{Kuhn2000a,
  Title                    = {{The Development of Cognitive Skills To Support Inquiry Learning}},
  Author                   = {Kuhn, Deanna and Black, John and Keselman, Alla and Kaplan, Danielle},
  Journal                  = {Cognition and Instruction},
  Year                     = {2000},
  Number                   = {4},
  Pages                    = {495--523},
  Volume                   = {18},

  Doi                      = {10.1207/S1532690XCI1804_3},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1207/S1532690XCI1804\_3},
  File                     = {/home/huub/Documents/Research/main/Sources/Kuhn2000a-The\_developement\_of\_cognitive\_skills\_to\_support\_inquiry\_thinking.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1207/S1532690XCI1804_3}
}

@InCollection{Kuijpers2009a,
  Title                    = {{Wetenschap en techniek in het basisonderwijs in Nederland; ontwikkelingen in vogelvlucht}},
  Author                   = {Kuijpers, Jaqueline and Noordam, Jan and Peters, Sylvia},
  Booktitle                = {{Onderzoek naar wetenschap en techniek in het Nederlandse basisonderwijs}},
  Publisher                = {Platform B{\`e}ta Techniek},
  Year                     = {2009},

  Address                  = {Den Haag},
  Editor                   = {van Keulen, Hanno and van der Molen, Juliette Walma},
  Pages                    = {17--27},

  Keywords                 = {science; primary education}
}

@Article{Kumar1997a,
  Title                    = {{Pitfalls in elementary physics}},
  Author                   = {Kumar, A.},
  Journal                  = {Resonance},
  Year                     = {1997},
  Number                   = {7},
  Pages                    = {75--81},
  Volume                   = {2},

  File                     = {/home/huub/Documents/Research/main/Sources/Kumar1997a-Pitfalls\_in\_elementary\_physics.pdf},
  Keywords                 = {calculus; higer education; motion domain},
  Publisher                = {Springer}
}

@Article{Kyza2011a,
  Title                    = {{Sixth Graders{\rq} Co-construction of Explanations of a Disturbance in an Ecosystem: Exploring relationships between grouping, reflective scaffolding, and evidence-based explanations}},
  Author                   = {Kyza, Eleni A. and Constantinou, Costas P. and Spanoudis, George},
  Journal                  = {International Journal of Science Education},
  Year                     = {2011},
  Number                   = {18},
  Pages                    = {2489--2525},
  Volume                   = {33},

  Doi                      = {10.1080/09500693.2010.550951},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/09500693.2010.550951},
  File                     = {/home/huub/Documents/Research/main/Sources/Kyza2011a-Sixth\_graders\_co-construction\_of\_explanations\_of\_disturbance\_in\_an\_ecosystem.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/09500693.2010.550951}
}

@Article{Lena2006a,
  Title                    = {{Erasmus Lecture 2005 From science to education: the need for a revolution}},
  Author                   = {L{\'e}na, Pierre},
  Journal                  = {European Review},
  Year                     = {2006},
  Number                   = {01},
  Pages                    = {3--21},
  Volume                   = {14},

  Doi                      = {10.1017/S1062798706000020},
  Eprint                   = {http://journals.cambridge.org/article\_S1062798706000020},
  File                     = {/home/huub/Documents/Research/main/Sources/Lena2006a-From\_science\_to\_education-the\_need\_for\_a\_revolution.pdf},
  Keywords                 = {science; primary education},
  Url                      = {http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=364340&fulltextType=RA&fileId=S1062798706000020}
}

@Book{Lagemann2000a,
  Title                    = {{An elusive science. The troubling history of education research}},
  Author                   = {Lagemann, Ellen Condliffe},
  Publisher                = {The university of Chicago press},
  Year                     = {2000},

  Address                  = {Chicacgo}
}

@Book{Lakoff2003a,
  Title                    = {{Metaphors we live by}},
  Author                   = {Lakoff, George and JOhnson, Mark},
  Publisher                = {The University of Chicago Press},
  Year                     = {2003},

  Address                  = {Chicago},
  Edition                  = {2003},
  Note                     = {first published in 1980; 2003 edition has a new afterword}
}

@Book{Lakoff2000a,
  Title                    = {{Where mathematics comes from}},
  Author                   = {Lakoff, Georg and N{\'u}{\~n}ez, Rafael E.},
  Publisher                = {Basic Books},
  Year                     = {2000}
}

@Article{Lamberg2009a,
  Title                    = {{Design research perspectives on transitioning from individual microgenetic interviews to a whole-class teaching experiment}},
  Author                   = {Lamberg, T. and Middleton, J.A.},
  Journal                  = {Educational Researcher},
  Year                     = {2009},
  Number                   = {4},
  Pages                    = {233},
  Volume                   = {38},

  File                     = {/home/huub/Documents/Research/main/Sources/Lamberg2009a-Design\_research\_perspectives\_on\_transitioning\_from\_individual\_to\_whole\_class\_teaching\_experiment.pdf},
  Keywords                 = {design research; teaching experiment},
  Publisher                = {SAGE Publications}
}

@Article{Lange2005a,
  Title                    = {{How Can Instantaneous Velocity Fulfill Its Causal Role?}},
  Author                   = {Lange, M.},
  Journal                  = {The Philosophical Review},
  Year                     = {2005},
  Number                   = {4},
  Pages                    = {433--468},
  Volume                   = {114},

  File                     = {/home/huub/Documents/Research/main/Sources/Lange2005a-How\_can\_instantaneous\_velocity\_fulfill\_its\_causal\_role.pdf},
  Keywords                 = {instantaneous speed; philosophy}
}

@Article{Lapp2000a,
  Title                    = {{Using data-collection devices to enhance students' understanding}},
  Author                   = {Lapp, D.A. and Cyrus, V.F.},
  Journal                  = {Mathematics Teacher},
  Year                     = {2000},
  Number                   = {6},
  Pages                    = {504--510},
  Volume                   = {93},

  File                     = {/home/huub/Documents/Research/main/Sources/Lapp2000a-Using\_data-collection\_devices\_to\_enhance\_students\_understanding.pdf},
  Keywords                 = {science; mathematics; ict; sensor},
  Url                      = {http://calcnet.cst.cmich.edu/faculty/lapp/MT2000.pdf}
}

@Unpublished{Latour1986a,
  Title                    = {{Visualisation and Cognition: Drawing Things Together}},
  Author                   = {Latour, Bruno},
  Year                     = {1986},

  File                     = {/home/huub/Documents/Research/main/Sources/Latour1986a-Visualisation\_and\_Cognition-Drawing\_Things\_Together.pdf},
  Keywords                 = {representation; history},
  Url                      = {http://www.bruno-latour.fr/articles/article/21-DRAWING-THINGS-TOGETHER.pdf}
}

@Article{Laugksch2000a,
  Title                    = {{Scientific literacy: A conceptual overview}},
  Author                   = {Laugksch, R.C.},
  Journal                  = {Science education},
  Year                     = {2000},
  Number                   = {1},
  Pages                    = {71--94},
  Volume                   = {84},

  File                     = {/home/huub/Documents/Research/main/Sources/Laugksch2000a-Scientific\_Literacy-a-Conceptual\_overview.pdf},
  ISSN                     = {1098-237X},
  Keywords                 = {science},
  Publisher                = {John Wiley \& Sons},
  Url                      = {http://ci.unlv.edu/files/Laugksch_Scientific_Literacy.pdf}
}

@Article{Laverty2012a,
  Title                    = {{Function plot response: A scalable system for teaching kinematics graphs}},
  Author                   = {Laverty, James and Kortemeyer, Gerd},
  Journal                  = {American Journal of Physics},
  Year                     = {2012},
  Number                   = {8},
  Pages                    = {724--733},
  Volume                   = {80},

  Doi                      = {10.1119/1.4719112},
  File                     = {/home/huub/Documents/Research/main/Sources/Laverty2012a-Function\_plot\_response-A\_scalable\_system\_for\_teaching\_kinematics\_graphs.pdf},
  Keywords                 = {graphs; kinematics; physics education; teaching},
  Publisher                = {AAPT},
  Url                      = {http://link.aip.org/link/?AJP/80/724/1}
}

@Article{Leenaars2013a,
  Title                    = {{Using self-made drawings to support modelling in science education}},
  Author                   = {Leenaars, Frank A. J. and van Joolingen, Wouter R. and Bollen, Lars},
  Journal                  = {British Journal of Educational Technology},
  Year                     = {2013},
  Number                   = {1},
  Pages                    = {82--94},
  Volume                   = {44},

  Doi                      = {10.1111/j.1467-8535.2011.01272.x},
  File                     = {/home/huub/Documents/Research/main/Sources/Leenaars2013a-Using\_self-made\_drawings\_to\_support\_modelling\_in\_science\_education.pdf},
  ISSN                     = {1467-8535},
  Publisher                = {Blackwell Publishing Ltd},
  Url                      = {http://dx.doi.org/10.1111/j.1467-8535.2011.01272.x}
}

@Article{Lehrer2007a,
  Title                    = {{Supporting the Development of Conceptions of Statistics by Engaging Students in Measuring and Modeling Variability}},
  Author                   = {Lehrer, Richard and Kim, Min-joung and Schauble, Leona},
  Journal                  = {International Journal of Computers for Mathematical Learning},
  Year                     = {2007},
  Note                     = {10.1007/s10758-007-9122-2},
  Pages                    = {195--216},
  Volume                   = {12},

  Affiliation              = {Vanderbilt University Nashville TN US},
  File                     = {/home/huub/Documents/Research/main/Sources/Lehrer2007a-Supporting\_the\_development\_of\_conceptions\_of\_statistics\_by\_engaging\_students\_in\_measuring\_and\_modeling\_variability.pdf},
  ISSN                     = {1382-3892},
  Issue                    = {3},
  Keyword                  = {Humanities, Social Sciences and Law},
  Keywords                 = {primary education; modeling},
  Publisher                = {Springer Netherlands},
  Url                      = {http://dx.doi.org/10.1007/s10758-007-9122-2}
}

@InBook{Lehrer2006a,
  Title                    = {{Scientific thinking and science literacy}},
  Author                   = {Lehrer, Richard and Schauble, Leona},
  Editor                   = {Renninger, K. Ann and Sigel, Irving E. and Damon, William and Lerner, Richard M.},
  Pages                    = {153--196},
  Year                     = {2006},
  Edition                  = {6},
  Volume                   = {4},

  Booktitle                = {{Handbook of child psychology}},
  File                     = {/home/huub/Documents/Research/main/Sources/Lehrer2006a-Scientific\_thinking\_and\_science\_literacy.pdf}
}

@InCollection{Lehrer2010a,
  Title                    = {{What Kind of Explanation is a Model?}},
  Author                   = {Lehrer, Richard and Schauble, Leona},
  Booktitle                = {{Instructional explanations in the disciplines}},
  Publisher                = {Springer},
  Year                     = {2010},
  Editor                   = {Stein, M.K. and Kucan, L.},
  Pages                    = {9--22},

  File                     = {/home/huub/Documents/Research/main/Sources/Lehrer2010a-What\_kind\_of\_explanation\_is\_a\_model.pdf}
}

@Article{Lehrer2012a,
  Title                    = {{Seeding evolutionary thinking by engaging children in modeling its foundations}},
  Author                   = {Lehrer, Richard and Schauble, Leona},
  Journal                  = {Science Education},
  Year                     = {2012},
  Number                   = {4},
  Pages                    = {701--724},
  Volume                   = {96},

  Doi                      = {10.1002/sce.20475},
  File                     = {/home/huub/Documents/Research/main/Sources/Lehrer2012a-Seeding\_evolutionary\_thinking\_by\_engaging\_children\_in\_modeling\_its\_foundations.pdf},
  ISSN                     = {1098-237X},
  Publisher                = {Wiley Subscription Services, Inc., A Wiley Company},
  Url                      = {http://dx.doi.org/10.1002/sce.20475}
}

@TechReport{Lehtinen1999a,
  Title                    = {{Computer supported collaborative learning: A review}},
  Author                   = {Lehtinen, E. and Hakkarainen, K. and Lipponen, L. and Rahikainen, M. and Muukkonen, H.},
  Year                     = {1999},

  File                     = {/home/huub/Documents/Research/main/Sources/Lehtinen1999a-CSCL-A\_review.pdf},
  Publisher                = {University of Nijmegen Nijmegen},
  Series                   = {{The JHGI Giesbers reports on education}},
  Volume                   = {10}
}

@Article{Leinhardt1990a,
  Title                    = {{Functions, Graphs, and Graphing: Tasks, Learning, and Teaching}},
  Author                   = {Leinhardt, Gaea and Zaslavsky, Orit and Stein, Mary Kay},
  Journal                  = {Review of Educational Research},
  Year                     = {1990},
  Number                   = {1},
  Pages                    = {1--64},
  Volume                   = {60},

  File                     = {/home/huub/Documents/Research/main/Sources/Leinhardt1990a-Functions\_graphs\_and\_graphing-Tasks\_learning\_and\_teaching.pdf},
  Keywords                 = {graph; interpret graph; draw graph; function; middle school; secondary education; higher education}
}

@InCollection{Lemke2003a,
  Title                    = {{Mathematics in the middle: Measure, picture, gesture, sign, and word}},
  Author                   = {Lemke, Jay L},
  Booktitle                = {{Educational Perspectives on Mathematics as Semiosis: From Thinking to Interpreting to Knowing}},
  Year                     = {2002},
  Editor                   = {Anderson, M. and Saenz-Ludlow, A. and Zellweger, S. abd Cifarelli V.},
  Pages                    = {215--234},

  File                     = {/home/huub/Documents/Research/main/Sources/Lemke2003a-Mathematics\_in\_the\_middle-measure\_picture\_gesture\_sign\_and\_word.pdf},
  Journal                  = {Educational perspectives on mathematics as semiosis: From thinking to interpreting to knowing},
  Url                      = {http://www.jaylemke.com/storage/Math-in-the-Middle-2002.pdf}
}

@Article{Lerman2000a,
  Title                    = {{A Case of Interpretations of Social: A Response to Steffe and Thompson}},
  Author                   = {Lerman, S.},
  Journal                  = {Journal for Research in Mathematics Education},
  Year                     = {2000},
  Number                   = {2},
  Pages                    = {pp. 210--227},
  Volume                   = {31},

  Abstract                 = {In their response to my (1996) article, Steffe and Thompson argued that I have taken an early position of Vygotsky's and that his later work is subsumed in and developed by von Glasersfeld. I argue that the two theories, Vygotsky's and radical constructivism, are, on the contrary, quite distinct and that this distinction, when seen as a dichotomy, is productive. I suggest that radical constructivists draw on a weak image of the role of social life. I argue that a thick notion of social leads to a complexity of sociocultural theories concerning the teaching and learning of mathematics, a perspective that is firmly located in the debates surrounding cultural theory of the last 2 decades.},
  File                     = {/home/huub/Documents/Research/main/Sources/Lerman2000a-A\_case\_of\_interpretations\_of\_social.pdf},
  ISSN                     = {00218251},
  Jstor_articletype        = {research-article},
  Jstor_formatteddate      = {Mar., 2000},
  Keywords                 = {vygotsky; glasersfeld; constructivism; social constructivism},
  Language                 = {English},
  Publisher                = {National Council of Teachers of Mathematics},
  Url                      = {http://www.jstor.org/stable/749752}
}

@Article{Lerman1996a,
  Title                    = {{Intersubjectivity in Mathematics Learning: A Challenge to the Radical Constructivist Paradigm?}},
  Author                   = {Lerman, Stephen},
  Journal                  = {Journal for Research in Mathematics Education},
  Year                     = {1996},
  Number                   = {2},
  Pages                    = {pp. 133--150},
  Volume                   = {27},

  File                     = {/home/huub/Documents/Research/main/Sources/Lerman1996a-Intersubjectivity\_in\_mathematics\_learning.pdf},
  ISSN                     = {00218251},
  Jstor_articletype        = {research-article},
  Jstor_formatteddate      = {Mar., 1996},
  Keywords                 = {mathematics; constructivism; social constructivism; piaget; vygotsky},
  Language                 = {English},
  Publisher                = {National Council of Teachers of Mathematics},
  Url                      = {http://www.jstor.org/stable/749597}
}

@Article{Lesh2007a,
  Title                    = {{Introduction to the Special Issue: Modeling as Application versus Modeling as a Way to Create Mathematics}},
  Author                   = {Lesh, Richard and Caylor, Beth},
  Journal                  = {International Journal of Computers for Mathematical Learning},
  Year                     = {2007},
  Note                     = {10.1007/s10758-007-9121-3},
  Pages                    = {173--194},
  Volume                   = {12},

  Affiliation              = {Indiana University Bloomington IN USA},
  File                     = {/home/huub/Documents/Research/main/Sources/Lesh2007a-Modeling\_as\_application\_versus\_modeling\_as\_a\_way\_to\_create\_mathematics.pdf},
  ISSN                     = {1382-3892},
  Issue                    = {3},
  Keyword                  = {Humanities, Social Sciences and Law},
  Keywords                 = {mathematics; modeling; middle school},
  Publisher                = {Springer Netherlands},
  Url                      = {http://dx.doi.org/10.1007/s10758-007-9121-3}
}

@InCollection{Lesh2013a,
  Title                    = {{Modeling as a Means for Making Powerful Ideas Accessible to Children at an Early Age}},
  Author                   = {Lesh, Richard and English, Lyn and Sevis, Serife and Riggs, Chanda},
  Booktitle                = {{The SimCalc Vision and Contributions}},
  Publisher                = {Springer Netherlands},
  Year                     = {2013},
  Editor                   = {Hegedus, Stephen J. and Roschelle, Jeremy},
  Pages                    = {419--436},
  Series                   = {{Advances in Mathematics Education}},

  Doi                      = {10.1007/978-94-007-5696-0_23},
  File                     = {/home/huub/Documents/Research/main/Sources/Lesh2013a-Modeling\_as\_a\_means\_for\_making\_powerful\_ideas\_accessible\_to\_children\_at\_an\_early\_age.pdf},
  ISBN                     = {978-94-007-5695-3},
  Keywords                 = {Models; Modeling; Mathematics problem solving; Model-eliciting activities; Simulations; Children{\rq}s stories; Primary school children; ``Big ideas''; Maximization; Minimization; Mathematizing; Situated understandings; Socially mediated understandings},
  Language                 = {English},
  Url                      = {http://dx.doi.org/10.1007/978-94-007-5696-0_23}
}

@Article{Lesh2003a,
  Title                    = {{Problem solving, modeling, and local conceptual development}},
  Author                   = {Lesh, R. and Harel, G.},
  Journal                  = {Mathematical Thinking and Learning},
  Year                     = {2003},
  Number                   = {2-3},
  Pages                    = {157--189},
  Volume                   = {5},

  File                     = {/home/huub/Documents/Research/main/Sources/Lesh2003a-Problem\_solving\_modeling\_and\_local\_conceptual\_development.pdf}
}

@InCollection{Lesh2000b,
  Title                    = {{Principles for Developing Thought-Revealing Activities for Students and Teachers}},
  Author                   = {Lesh, R. and Hoover, M. and Hole, B. and Kelly, A. and Post, T.},
  Booktitle                = {{Research Design in Mathematics and Science Education}},
  Publisher                = {Lawrence Erlbaum Associates},
  Year                     = {2000},

  Address                  = {Mahwah, New Jersey},
  Editor                   = {Kelly, A. and Lesh, R.},
  Pages                    = {591--646},

  Url                      = {http://www.cehd.umn.edu/rationalnumberproject/00_2.html}
}

@InCollection{Lesh2000a,
  Title                    = {{Multitiered teaching experiments}},
  Author                   = {Lesh, R. and Kelly, A.},
  Booktitle                = {{Research Design in Mathematics and Science Education}},
  Publisher                = {Lawrence Erlbaum Associates},
  Year                     = {2000},

  Address                  = {Mahwah},
  Chapter                  = {9},
  Editor                   = {kelly, A. and Lesh, R.},
  Pages                    = {197--230},

  Keywords                 = {teaching experiment},
  Url                      = {http://www.cehd.umn.edu/rationalnumberproject/00_1.html}
}

@InCollection{Lesh1987a,
  Title                    = {{Representations and ttranslation among representations in mathematics learning and problem solving}},
  Author                   = {Lesh, Richard and Post, Tom and Behr, Merlyn},
  Booktitle                = {{Problems of representation in the teaching and learning of mathematics}},
  Year                     = {1987},
  Chapter                  = {4},
  Editor                   = {Janvier, Claude},
  Pages                    = {33--40},

  File                     = {/home/huub/Documents/Research/main/Sources/Lesh1987a-Representations\_and\_translations\_among\_representations\_in\_mathematics\_learning\_and\_problem\_solving.pdf}
}

@Article{Lesh2010a,
  Title                    = {{Re-conceptualizing Mathematics Education as a Design Science}},
  Author                   = {Lesh, R. and Sriraman, B.},
  Journal                  = {Theories of Mathematics Education},
  Year                     = {2010},
  Pages                    = {123--146},

  File                     = {/home/huub/Documents/Research/main/Sources/Lesh2010a-Re-conceptualizing\_mathematics\_education\_as\_a\_design\_science.pdf},
  Keywords                 = {design research},
  Publisher                = {Springer}
}

@Article{Lester2010a,
  Title                    = {{On the theoretical, conceptual, and philosophical foundations for research in mathematics education}},
  Author                   = {Lester, Frank K. Jr.},
  Journal                  = {Advances in Mathematics Education},
  Year                     = {2010},
  Pages                    = {67--85}
}

@InCollection{Lijnse2010a,
  Title                    = {{{\lq}Developmental research{\rq}as a way to an empirically based {\lq}didactical structure{\rq}of science1}},
  Author                   = {Lijnse, Piet},
  Booktitle                = {{Designing Theory-Based Teaching-Learning Sequences for Science Education}},
  Editor                   = {Kortland, Koos and Klaassen, Kees},
  Pages                    = {91--101},

  File                     = {/home/huub/Documents/Research/main/Sources/Lijnse2010a-Developmental\_research\_as\_a\_way\_to\_an\_empirically\_based\_didactical\_structure\_of\_science.pdf}
}

@Article{Lijnse2008a,
  Title                    = {{Modellen van/voor leren modelleren}},
  Author                   = {Lijnse, P.},
  Journal                  = {Tijdschrift voor Didactiek der {\ss}-wetenschappen},
  Year                     = {2008},
  Number                   = {1},
  Pages                    = {3--24},
  Volume                   = {25},

  File                     = {/home/huub/Documents/Research/main/Sources/Lijnse2008a-Modellen\_van-voor\_leren\_modelleren.pdf},
  Url                      = {http://www.fisme.science.uu.nl/tdb/fulltext/lijnse_2008.pdf}
}

@Article{Lipsey1993a,
  Title                    = {{Theory as method: Small theories of treatments}},
  Author                   = {Lipsey, M.W.},
  Journal                  = {New directions for program evaluation},
  Year                     = {1993},
  Number                   = {57},
  Pages                    = {5--38},
  Volume                   = {1993},

  File                     = {/home/huub/Documents/Research/main/Sources/Lipsey1993a-Theory\_as\_method-Small\_theories\_of\_treatments.pdf},
  Keywords                 = {theory},
  Publisher                = {Wiley Online Library}
}

@Article{Lobato2003a,
  Title                    = {{How design experiments can inform a rethinking of transfer and vice versa}},
  Author                   = {Lobato, J.},
  Journal                  = {Educational Researcher},
  Year                     = {2003},
  Number                   = {1},
  Pages                    = {17--20},
  Volume                   = {32},

  File                     = {/home/huub/Documents/Research/main/Sources/Lobato2003a-How\_design\_experiments\_can\_inform\_a\_rethinking\_of\_transfer\_and\_vice\_versa.pdf},
  Keywords                 = {design research; transfer},
  Publisher                = {American Educational Research Association},
  Url                      = {http://aera.net/uploadedFiles/Journals_and_Publications/Journals/Educational_Researcher/3201/3201_Loboto.pdf}
}

@Article{Lobato2002a,
  Title                    = {{Quantitative reasoning in a reconceived view of transfer}},
  Author                   = {Lobato, Joanne and Siebert, Daniel},
  Journal                  = {The Journal of Mathematical Behavior},
  Year                     = {2002},
  Number                   = {1},
  Pages                    = {87--116},
  Volume                   = {21},

  Doi                      = {10.1016/S0732-3123(02)00105-0},
  File                     = {/home/huub/Documents/Research/main/Sources/Lobato2002a-Quantitative\_reasoning\_in\_a\_reconceived\_view\_for\_transfer.pdf},
  ISSN                     = {0732-3123},
  Url                      = {http://www.sciencedirect.com/science/article/pii/S0732312302001050}
}

@Article{Lobato2015a,
  Title                    = {{Leveraging failure in design research}},
  Author                   = {Lobato, Joanne and Walters, C. David and Hohensee, Charles and Gruver, John and Diamond, JaimeMarie},
  Journal                  = {ZDM},
  Year                     = {2015},
  Pages                    = {1--17},

  Doi                      = {10.1007/s11858-015-0695-2},
  ISSN                     = {1863-9690},
  Language                 = {English},
  Localfile                = {/home/huub/to-research/Sources/Lobato2015a-Leveraging_failure_in_design_research.pdf},
  Publisher                = {Springer Berlin Heidelberg},
  Url                      = {http://dx.doi.org/10.1007/s11858-015-0695-2}
}

@Article{Ball2008a,
  Title                    = {{Content Knowledge for Teaching: What Makes It Special?}},
  Author                   = {{Loewenberg Ball}, Deborah and Thames, Mark Hoover and Phelps, Geoffrey},
  Journal                  = {Journal of Teacher Education},
  Year                     = {2008},
  Number                   = {5},
  Pages                    = {389--407},
  Volume                   = {59},

  Doi                      = {10.1177/0022487108324554},
  File                     = {/home/huub/Documents/Research/main/Sources/Ball2008a-Content\_knowledge\_for\_teaching-what\_makes\_it\_special.pdf}
}

@InCollection{Loh2001a,
  Title                    = {{Developing reflective inquiry practices: A case study of software, the teacher, and students}},
  Author                   = {Loh, B. and Reiser, B.J. and Radinsky, J. and Edelson, D.C. and Gomez, L.M. and Marshall, S.},
  Booktitle                = {{Designing for science: Implications from everyday, classroom, and professional settings}},
  Year                     = {2001},
  Editor                   = {Crowley, K. and Schunn, C.D. and Okada, T.},
  Pages                    = {279--323},

  File                     = {/home/huub/Documents/Research/main/Sources/Loh2001a-Developing\_reflective\_inquiry\_practices-a\_case\_study\_of\_software\_the\_teacher\_and\_students.pdf}
}

@Article{Lou1996a,
  Title                    = {{Within-class grouping: A meta-analysis}},
  Author                   = {Lou, Y. and Abrami, P.C. and Spence, J.C. and Poulsen, C. and Chambers, B. and d{\rq}Apollonia, S.},
  Journal                  = {Review of educational research},
  Year                     = {1996},
  Number                   = {4},
  Pages                    = {423--458},
  Volume                   = {66},

  File                     = {/home/huub/Documents/Research/main/Sources/Lou1996a-Within-class\_grouping-A\_meta-analysis.pdf}
}

@Article{Louca2012a,
  Title                    = {{Modeling-based learning in science education: cognitive, metacognitive, social, material and epistemological contributions}},
  Author                   = {Louca, Loucas T and Zacharia, Zacharias C},
  Journal                  = {Educational Review},
  Year                     = {2012},
  Number                   = {4},
  Pages                    = {471--492},
  Volume                   = {64},

  File                     = {/home/huub/Documents/Research/main/Sources/Louca2012a-Modeling-based\_learning-in\_science\_education-cognitive\_metacognitive\_social\_material\_and\_epistemological\_contributions.pdf}
}

@Article{Lourenco2012a,
  Title                    = {{Piaget and Vygotsky: Many resemblances, and a crucial difference}},
  Author                   = {Louren\c{c}o, Orlando},
  Journal                  = {New Ideas in Psychology},
  Year                     = {2012},
  Number                   = {3},
  Pages                    = {281--295},
  Volume                   = {30},

  Doi                      = {10.1016/j.newideapsych.2011.12.006},
  File                     = {/home/huub/Documents/Research/main/Sources/Lourenco2012a-Piaget\_and\_Vygotsky-Many\_resemblances\_and\_a\_crucial\_difference.pdf},
  ISSN                     = {0732-118X},
  Keywords                 = {Piaget},
  Url                      = {http://www.sciencedirect.com/science/article/pii/S0732118X1100078X}
}

@InCollection{Lowe2006a,
  Title                    = {{Changing Perceptions of Animated Diagrams}},
  Author                   = {Lowe, Richard},
  Booktitle                = {{Diagrammatic Representation and Inference}},
  Publisher                = {Springer Berlin Heidelberg},
  Year                     = {2006},
  Editor                   = {Barker-Plummer, Dave and Cox, Richard and Swoboda, Nik},
  Pages                    = {168--172},
  Series                   = {{Lecture Notes in Computer Science}},
  Volume                   = {4045},

  Doi                      = {10.1007/11783183_22},
  File                     = {/home/huub/Documents/Research/main/Sources/Lowe2006a-Changing\_perceptions\_of\_animated\_diagrams.pdf},
  ISBN                     = {978-3-540-35623-3},
  Url                      = {http://dx.doi.org/10.1007/11783183_22}
}

@Article{Lowe2004a,
  Title                    = {{Interrogation of a dynamic visualization during learning}},
  Author                   = {Lowe, Richard},
  Journal                  = {Learning and Instruction},
  Year                     = {2004},
  Number                   = {3},
  Pages                    = {257--274},
  Volume                   = {14},

  File                     = {/home/huub/Documents/Research/main/Sources/Lowe2004a-Interrogation\_of\_a\_dynamic\_visualization\_during\_learning.pdf}
}

@InProceedings{Lowrie2007a,
  Title                    = {{Middle school students' interpreting graphical tasks: Difficulties within a graphical language}},
  Author                   = {Lowrie, Tom and Diezmann, Carmel M.},
  Booktitle                = {{4th East Asia Regional Conference on Mathematics Education}},
  Year                     = {2007},

  Address                  = {Penang, Malaysia},

  File                     = {/home/huub/Documents/Research/main/Sources/Lowrie2007a-Middle\_school\_students\_interpretation\_of\_graphing\_tasks.pdf},
  Keywords                 = {graph; interpret graph; primary education; middle school},
  Url                      = {http://eprints.qut.edu.au/10491/}
}

@Article{Maatta2012a,
  Title                    = {{Triggers of Students{\rq} Efficacious Interaction in Collaborative Learning Situations}},
  Author                   = {M{\"a}{\"a}tt{\"a}, E. and J{\"a}rvenoja, H. and J{\"a}rvel{\"a}, S.},
  Journal                  = {Small Group Research},
  Year                     = {2012},
  Number                   = {4},
  Pages                    = {497--522},
  Volume                   = {43},

  File                     = {/home/huub/Documents/Research/main/Sources/Maatta2012a-Triggers\_of\_students\_efficacious\_interaction\_in\_collaborative\_learning\_situations.pdf}
}

@Article{MacKay1955a,
  Title                    = {{Operational aspects of some fundamental concepts of human communication}},
  Author                   = {MacKay, Donald M},
  Journal                  = {Synthese},
  Year                     = {1955},
  Number                   = {1},
  Pages                    = {182--198},
  Volume                   = {9},

  File                     = {/home/huub/Documents/Research/main/Sources/MacKay1955a-Operational\_aspects\_of\_some\_fundamental\_concepts\_of\_human\_communication.pdf}
}

@Article{Marsden2007a,
  Title                    = {{Can educational experiments both test a theory and inform practice?}},
  Author                   = {Marsden, E.},
  Journal                  = {British Educational Research Journal},
  Year                     = {2007},
  Number                   = {4},
  Pages                    = {565--588},
  Volume                   = {33},

  File                     = {/home/huub/Documents/Research/main/Sources/Marsden2007a-Can\_educational\_experiments\_both\_test\_a\_theory\_and\_inform\_practice.pdf},
  Keywords                 = {design research},
  Url                      = {http://www.restore.ac.uk/trials-pp/Can%20Educational%20Experiments%20both%20Test%20a%20Theory%20and%20Inform%20Practice.pdf}
}

@Article{Marshall2008a,
  Title                    = {{Students' mathematical modeling of motion}},
  Author                   = {Marshall, Jill A. and Carrejo, David J.},
  Journal                  = {Journal of Research in Science Teaching},
  Year                     = {2008},
  Number                   = {2},
  Pages                    = {153--173},
  Volume                   = {45},

  File                     = {/home/huub/Documents/Research/main/Sources/Marshall2008a-Students\_mathematical\_modeling\_of\_motion.pdf},
  Keywords                 = {modeling; motion domain; higher education},
  Publisher                = {New York, Wiley.}
}

@InProceedings{Mason1992a,
  Title                    = {{Doing and construing mathematics in screenspace}},
  Author                   = {Mason, John},
  Booktitle                = {{Proceedings of the 15th Annual Conference of the Mathematics Education Research Group of Australasia}},
  Year                     = {1992},
  Pages                    = {1--17},

  File                     = {/home/huub/Documents/Research/main/Sources/Mason1992a-Doing\_and\_construing\_mathematics\_in\_screenspace.pdf},
  Url                      = {http://www.merga.net.au/documents/Keynote_Mason_1992.pdf}
}

@InCollection{Mason1996a,
  Title                    = {{The role of theory in mathematics education and research}},
  Author                   = {Mason, John and Waywood, Andrew},
  Booktitle                = {{International handbook of mathematics education}},
  Publisher                = {Kluwer Academic Publishers},
  Year                     = {1996},
  Chapter                  = {28},
  Editor                   = {Bishop, Alan J. and Clements, Ken and Keitel, Christine and Kilpatrick, Jeremy and Laborde, Colette},
  Pages                    = {1055--1089},

  File                     = {/home/huub/Documents/Research/main/Sources/Mason1996a-The\_role\_of\_theory\_in\_mathematics\_education\_and\_research.pdf},
  Keywords                 = {mathematics; theory}
}

@Article{NCTM1996a,
  Title                    = {{Justification and Reform}},
  Author                   = {of Mathematics, Research Advisory Committee of the National Council of Teachers},
  Journal                  = {Journal for Research in Mathematics Education},
  Year                     = {1996},
  Number                   = {5},
  Pages                    = {pp. 516--520},
  Volume                   = {27},

  ISSN                     = {00218251},
  Localfile                = {/home/huub/to-research/Sources/NCTM1996a-Justification_and_reform.pdf},
  Publisher                = {National Council of Teachers of Mathematics},
  Url                      = {http://www.jstor.org/stable/749845}
}

@Article{Mawson2007a,
  Title                    = {{Factors affecting learning in technology in the early years at school}},
  Author                   = {Mawson, Brent},
  Journal                  = {International Journal for Technology Education},
  Year                     = {2007},
  Pages                    = {253--269},
  Volume                   = {17},

  File                     = {/home/huub/Documents/Research/main/Sources/Mawson2007a-Factors\_affecting\_learning\_in\_technology\_in\_the\_early\_years\_at\_school.pdf},
  Keywords                 = {ict; primary education},
  Url                      = {http://www.springerlink.com/content/67846707003j68v2/fulltext.pdf}
}

@Article{Maxwell2004a,
  Title                    = {{Causal explanation, qualitative research, and scientific inquiry in education}},
  Author                   = {Maxwell, J.A.},
  Journal                  = {Educational Researcher},
  Year                     = {2004},
  Number                   = {2},
  Pages                    = {3--11},
  Volume                   = {33},

  File                     = {/home/huub/Documents/Research/main/Sources/Maxwell2004a-Causal\_explanation\_qualitative\_research\_and\_scientific\_inquire\_in\_education.pdf},
  Keywords                 = {qualitative research; theory},
  Url                      = {http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.117.4297&rep=rep1&type=pdf}
}

@Article{Mayer1997a,
  Title                    = {{Multimedia learning: Are we asking the right questions?}},
  Author                   = {Mayer, R.E.},
  Journal                  = {Educational psychologist},
  Year                     = {1997},
  Number                   = {1},
  Pages                    = {1--19},
  Volume                   = {32},

  File                     = {/home/huub/Documents/Research/main/Sources/Mayer1997a-Multimedia\_learning-are\_we\_asking\_the\_right\_questions.pdf},
  Keywords                 = {ict; multimedia},
  Publisher                = {Routledge},
  Url                      = {http://www.uky.edu/~gmswan3/609/mayer_1997.pdf}
}

@Article{Mayer2004a,
  Title                    = {{Should There Be a Three-Strikes Rule Against Pure Discovery Learning?}},
  Author                   = {Mayer, Richard E.},
  Journal                  = {American Psychologist},
  Year                     = {2004},
  Number                   = {1},
  Pages                    = {14--19},
  Volume                   = {59},

  File                     = {/home/huub/Documents/Research/main/Sources/Mayer2004a-Should\_there\_be\_a\_three-strike\_rule\_against\_pure\_discovery\_learning.pdf},
  ISBN                     = {0003-066X},
  Language                 = {English},
  Url                      = {http://search.proquest.com/docview/614385379?accountid=27128}
}

@Article{Mayer2002a,
  Title                    = {{Animation as an aid to multimedia learning}},
  Author                   = {Mayer, Richard E and Moreno, Roxana},
  Journal                  = {Educational psychology review},
  Year                     = {2002},
  Number                   = {1},
  Pages                    = {87--99},
  Volume                   = {14},

  File                     = {/home/huub/Documents/Research/main/Sources/Mayer2002a-Animation\_as\_an\_aid\_to\_multimedia\_learning.pdf}
}

@InCollection{Mayes2012a,
  Title                    = {{Quantitative reasoning in context}},
  Author                   = {Mayes, Robert and Bonilla, Rachel and Peterson, Franziska},
  Booktitle                = {{Quantitative reasoning and Mathematical Modeling: A Driver for STEM Integrated Education and Teaching in Context}},
  Year                     = {2012},
  Editor                   = {Mayes, R. and Bonillia, R. and Hatfield, L. L. and Belbase, S.},
  Pages                    = {7--38},

  File                     = {/home/huub/Documents/Research/main/Sources/Mayes2012a-Quantitative\_reasoning\_in\_context.pdf},
  Url                      = {http://www.uwyo.edu/wisdome/_files/documents/qrincontext_mayespeterson.pdf}
}

@Article{McCandliss2003a,
  Title                    = {{Design experiments and laboratory approaches to learning: Steps toward collaborative exchange}},
  Author                   = {McCandliss, B.D. and Kalchman, M. and Bryant, P.},
  Journal                  = {Educational Researcher},
  Year                     = {2003},
  Number                   = {1},
  Pages                    = {14--16},
  Volume                   = {32},

  File                     = {/home/huub/Documents/Research/main/Sources/McCandliss2003a-Design\_experiments\_and\_laboratory\_approaches\_to\_learning-Steps\_towards\_collaborative\_exchange.pdf},
  Keywords                 = {design research},
  Url                      = {http://www.sacklerinstitute.org/cornell/people/bruce.mccandliss/publications/publications/McCandliss.etal.2003.EdRes.pdf}
}

@Article{McCloskey1983a,
  Title                    = {{Intuitive physics}},
  Author                   = {McCloskey, M.},
  Journal                  = {Scientific american},
  Year                     = {1983},
  Number                   = {4},
  Pages                    = {114--122},
  Volume                   = {248},

  File                     = {/home/huub/Documents/Research/main/Sources/McCloskey1983a-Intuitive\_Physics.pdf},
  Keywords                 = {motion domain; secondary education; higher education; history},
  Url                      = {http://homepage.psy.utexas.edu/homepage/faculty/Markman/PSY394/McCloskey_IntuitivePhysics.pdf}
}

@Article{McCoy2012a,
  Title                    = {{Functions and the Volume of Vases}},
  Author                   = {McCoy, Ann C and Barger, Rita H and Barnett, Joann and Combs, Emily},
  Journal                  = {Mathematics Teaching in the Middle School},
  Year                     = {2012},
  Number                   = {9},
  Pages                    = {530--536},
  Volume                   = {17},

  File                     = {/home/huub/Documents/Research/main/Sources/McCoy2012a-Functions\_and\_the\_volume\_of\_water.pdf},
  Keywords                 = {filling glasses}
}

@Article{McDermott1987a,
  Title                    = {{Student difficulties in connecting graphs and physics: Exampies from kinematics}},
  Author                   = {McDermott, L.C. and Rosenquist, M.L. and Zee, E.H.},
  Journal                  = {American Journal of Physics},
  Year                     = {1987},
  Pages                    = {503--513},
  Volume                   = {55},

  File                     = {/home/huub/Documents/Research/main/Sources/McDermott1987a-Student\_difficulties\_in\_connecting\_graphs\_and\_physics.pdf},
  Keywords                 = {higher education; graph; interpret graph; motion domain},
  Url                      = {http://www.colorado.edu/physics/phys4810/phys4810_fa08/refs/McDermott2c.pdf}
}

@Article{McGowen2010a,
  Title                    = {{Metaphor or Met-Before? The effects of previouos experience on practice and theory of learning mathematics}},
  Author                   = {McGowen, M. and Tall, D.},
  Journal                  = {The Journal of Mathematical Behavior},
  Year                     = {2010},
  Number                   = {3},
  Pages                    = {169--179},
  Volume                   = {29},

  File                     = {/home/huub/Documents/Research/main/Sources/McGowen2010a-Methaphor\_or\_met-before.pdf},
  Url                      = {http://homepages.warwick.ac.uk/staff/David.Tall/pdfs/dot2010b-met-before-mcgowen.pdf}
}

@Article{McNeill1998a,
  Title                    = {{History and the scientific worldview}},
  Author                   = {McNeill, W.H.},
  Journal                  = {History and theory},
  Year                     = {1998},
  Number                   = {1},
  Pages                    = {1--13},
  Volume                   = {37},

  File                     = {/home/huub/Documents/Research/main/Sources/McNeill1998a-History\_and\_the\_scientific\_worldview.pdf},
  ISSN                     = {1468-2303},
  Keywords                 = {science; history},
  Publisher                = {John Wiley \& Sons},
  Url                      = {http://www.historyandtheory.org/archives/feb98.html}
}

@Article{Meij2006a,
  Title                    = {{Supporting students' learning with multiple representations in a dynamic simulation-based learning environment}},
  Author                   = {van der Meij, Jan and de Jong, Ton},
  Journal                  = {Learning and Instruction},
  Year                     = {2006},
  Number                   = {3},
  Pages                    = {199--212},
  Volume                   = {16},

  Doi                      = {10.1016/j.learninstruc.2006.03.007},
  File                     = {/home/huub/Documents/Research/main/Sources/Meij2006a-Supporting\_students\_learning\_with\_multiple\_representations\_in\_a\_dynamic\_simulation-based\_learning\_environment.pdf},
  ISSN                     = {0959-4752},
  Keywords                 = {Multiple representations},
  Url                      = {http://www.sciencedirect.com/science/article/pii/S0959475206000260}
}

@Article{Meira1998a,
  Title                    = {{Making Sense of Instructional Devices: The Emergence of Transparency in Mathematical Activity}},
  Author                   = {Meira, L.},
  Journal                  = {Journal for Research in Mathematics Education},
  Year                     = {1998},
  Number                   = {2},
  Pages                    = {pp. 121--142},
  Volume                   = {29},

  File                     = {/home/huub/Documents/Research/main/Sources/Meira1998a-Making\_sense\_of\_instructional\_devices.pdf},
  Url                      = {http://www.jstor.org/stable/749895}
}

@Article{Mercer2004a,
  Title                    = {{Reasoning as a scientist: ways of helping children to use language to learn science}},
  Author                   = {Mercer, Neil and Dawes, Lyn and Wegerif, Rupert and Sams, Claire},
  Journal                  = {British Educational Research Journal},
  Year                     = {2004},
  Number                   = {3},
  Pages                    = {359--377},
  Volume                   = {30},

  Doi                      = {10.1080/01411920410001689689},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/01411920410001689689},
  File                     = {/home/huub/Documents/Research/main/Sources/Mercer2004a-Reasoning\_as\_a\_scientist-ways\_of\_helping\_children\_to\_use\_language\_to\_learn\_science.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/01411920410001689689}
}

@InCollection{Mercer2007a,
  Title                    = {{Computers, literacy and thinking together}},
  Author                   = {Mercer, N. and Dawes, L. and Wegerif, R. and Sams, C. and Fernandez, M.},
  Booktitle                = {{Teaching Secondary English with ICT}},
  Publisher                = {Open University Press},
  Year                     = {2007},
  Pages                    = {1},

  File                     = {/home/huub/Documents/Research/main/Sources/Mercer2007a-Computers\_literacy\_and\_thinking\_together.pdf}
}

@Article{Mercer1999a,
  Title                    = {{Children's Talk and the Development of Reasoning in the Classroom}},
  Author                   = {Mercer, Neil and Wegerif, Rupert and Dawes, Lyn},
  Journal                  = {British Educational Research Journal},
  Year                     = {1999},
  Number                   = {1},
  Pages                    = {95--111},
  Volume                   = {25},

  Doi                      = {10.1080/0141192990250107},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/0141192990250107},
  File                     = {/home/huub/Documents/Research/main/Sources/Mercer1999a-Childrens\_talk\_and\_the\_development\_of\_reasoning\_in\_the\_classroom.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/0141192990250107}
}

@Article{Merrienboer2001a,
  Title                    = {{Three worlds of instructional design: State of the art and future directions}},
  Author                   = {van Merri{\"e}nboer, J.J.G. and Kirschner, P.A.},
  Journal                  = {Instructional Science},
  Year                     = {2001},
  Number                   = {4},
  Pages                    = {429--441},
  Volume                   = {29},

  Publisher                = {Springer}
}

@Book{Merton1968a,
  Title                    = {{Social theory and social structure}},
  Author                   = {Merton, R.K.},
  Publisher                = {The Free Press},
  Year                     = {1968},
  Edition                  = {1968 Enlarged edition},

  Localfile                = {/home/huub/Documents/Research/main/Sources/Merton1968a-Social_theory_and_social_structure-pages_on_serendipity.pdf},
  Location                 = {New York}
}

@Article{Merton1945a,
  Title                    = {{Sociological Theory}},
  Author                   = {Merton, R.K.},
  Journal                  = {American Journal of Sociology},
  Year                     = {1945},
  Number                   = {6},
  Pages                    = {pp. 462--473},
  Volume                   = {50},

  Abstract                 = {The phrase "sociological theory" has been used to refer to at least six types of analysis which differ significantly in their bearings on empirical research. These are methodology, general orientations, conceptual analysis, post factum interpretations, empirical generalizations, and sociological theory. The distinctive limits and functions of each are described and illustrated. A typical case of the incorporation of an empirical generalization into a theoretic system is briefly considered. The conventions of formal derivation and codification are suggested as devices for aiding the integration of theory and empirical research.},
  Publisher                = {The University of Chicago Press},
  Url                      = {http://www.jstor.org/stable/2771390}
}

@Article{Meter2005a,
  Title                    = {{The Promise and Practice of Learner-Generated Drawing: Literature Review and Synthesis}},
  Author                   = {Meter, Peggy and Garner, Joanna},
  Journal                  = {Educational Psychology Review},
  Year                     = {2005},
  Number                   = {4},
  Pages                    = {285--325},
  Volume                   = {17},

  Doi                      = {10.1007/s10648-005-8136-3},
  ISSN                     = {1040-726X},
  Keywords                 = {drawing; learning strategy; comprehension strategy; cognitive processes},
  Language                 = {English},
  Publisher                = {Kluwer Academic Publishers-Plenum Publishers},
  Url                      = {http://dx.doi.org/10.1007/s10648-005-8136-3}
}

@Article{Mevarech1997a,
  Title                    = {{From verbal descriptions to graphic representations: Stability and change in students' alternative conceptions}},
  Author                   = {Mevarech, Zemira R. and Kramarsky, Bracha},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {1997},
  Number                   = {3},
  Pages                    = {229--263},
  Volume                   = {32},

  Doi                      = {10.1023/A:1002965907987},
  File                     = {/home/huub/Documents/Research/main/Sources/Mevarech1997a-From\_verbal\_descriptions\_to\_graphic\_representations.pdf},
  ISSN                     = {0013-1954},
  Language                 = {English},
  Publisher                = {Kluwer Academic Publishers},
  Url                      = {http://dx.doi.org/10.1023/A%3A1002965907987}
}

@InCollection{Meyer2003b,
  Title                    = {{Threshold Concepts and Troublesome Knowledge -- Linkages to Ways of Thinking and Practising}},
  Author                   = {Meyer, J.H.F. and Land, R.},
  Booktitle                = {{Improving Student Learning -- Ten Years On}},
  Year                     = {2003},
  Editor                   = {Rust, C.},

  File                     = {/home/huub/Documents/Research/main/Sources/Meyer2003b-Threshold\_concepts\_and\_troublesome\_knowledge.pdf}
}

@Article{Meyer2003a,
  Title                    = {{The metaphysics of velocity}},
  Author                   = {Meyer, U.},
  Journal                  = {Philosophical Studies},
  Year                     = {2003},
  Number                   = {1},
  Pages                    = {93--102},
  Volume                   = {112},

  File                     = {/home/huub/Documents/Research/main/Sources/Meyer2003a-The\_metaphysics\_of\_velocity.pdf},
  Keywords                 = {philosophy; instantaneous speed},
  Publisher                = {Springer}
}

@InBook{Mioduser2008a,
  Title                    = {{New literacies for the knowledge society}},
  Author                   = {Mioduser, D. and Nachmias, R. and Forkosh-Baruch, A.},
  Pages                    = {23--42},
  Publisher                = {Springer},
  Year                     = {2008},

  Booktitle                = {{International handbook of information technology in primary and secondary education}},
  File                     = {/home/huub/Documents/Research/main/Sources/Mioduser2008a-New\_literacies\_for\_the\_knowledge\_society.pdf},
  Keywords                 = {science; literacy; ict}
}

@InCollection{Molen2009a,
  Title                    = {{Theoretische uitgangspunten bij de professionalisering van leraren basisonderwijs op het gebied van wetenschap en techniek}},
  Author                   = {Molen, Juliette Walma van der and Lange, Jan de and Kok, Jozef},
  Booktitle                = {{Onderzoek naar wetenschap en techniek in het Nederlandse basisonderwijs}},
  Publisher                = {Platform B{\`e}ta Techniek},
  Year                     = {2009},

  Address                  = {Den Haag},
  Editor                   = {van Keulen, Hanno and van der Molen, Juliette Walma},
  Pages                    = {29--39}
}

@Article{Molenaar2011a,
  Title                    = {{Scaffolding of small groups{\rq} metacognitive activities with an avatar}},
  Author                   = {Molenaar, I. and Chiu, M.M. and Sleegers, P. and van Boxtel, C.},
  Journal                  = {International journal of computer-supported collaborative learning},
  Year                     = {2011},
  Pages                    = {1--24},

  File                     = {/home/huub/Documents/Research/main/Sources/Molenaar2011a-Scaffolding\_of\_small\_groups\_metacignitive\_activities\_with\_an\_avatar.pdf},
  Publisher                = {Springer}
}

@Article{Molnar1997a,
  Title                    = {{Computers in education: A brief history}},
  Author                   = {Molnar, A.},
  Journal                  = {June},
  Year                     = {1997},
  Volume                   = {25},

  Keywords                 = {history; higher education; primary education; secondary education; ict},
  Url                      = {http://thejournal.com/articles/1997/06/01/computers-in-education-a-brief-history.aspx}
}

@Article{Monteiro2010a,
  Title                    = {{The interpretation of graphs: reflecting on concontext aspects}},
  Author                   = {Monteiro, C. and Ainley, J.},
  Year                     = {2010},
  Pages                    = {17--30},

  File                     = {/home/huub/Documents/Research/main/Sources/Monteiro2010a-The\_interpretation\_of\_graphs-reflecting\_on\_contextual\_aspects.pdf},
  Journaltitle             = {Alexandria Revista de Educa\c{c}{\~a}o em Ci{\^e}ncia e Tecnologia}
}

@InCollection{Moreno2013a,
  Title                    = {{From Static to Dynamic Mathematics: Historical and Representational Perspectives}},
  Author                   = {Moreno-Armella, Luis and Hegedus, Stephen},
  Booktitle                = {{The SimCalc Vision and Contributions}},
  Publisher                = {Springer Netherlands},
  Year                     = {2013},
  Editor                   = {Hegedus, Stephen J. and Roschelle, Jeremy},
  Pages                    = {27--45},
  Series                   = {{Advances in Mathematics Education}},

  Doi                      = {10.1007/978-94-007-5696-0_3},
  File                     = {/home/huub/Documents/Research/main/Sources/Moreno2013a-From\_static\_to\_dynamic\_mathematics-Historical\_and\_representational\_perspectives.pdf},
  ISBN                     = {978-94-007-5695-3},
  Keywords                 = {Digital technologies; Symbol; Reference field; Executable structure; Embodied action; Networked context; Semiotic embodiment; Connectivity; Social situatedness; Epistemology},
  Language                 = {English},
  Url                      = {http://dx.doi.org/10.1007/978-94-007-5696-0_3}
}

@InCollection{Moritz2004a,
  Title                    = {{Reasoning about covariation}},
  Author                   = {Moritz, J.},
  Booktitle                = {{The challenge of developing statistical literacy, reasoning and thinking}},
  Publisher                = {Springer},
  Year                     = {2004},
  Editor                   = {Ben-Zvi, D. and Garfield, J.},
  Pages                    = {227--255},

  File                     = {/home/huub/Documents/Research/main/Sources/Moritz2004a-Reasoning\_about\_covariation.pdf},
  Keywords                 = {compound variable quantities; primary education; secondary education; graph; draw graph; alternative domain},
  Url                      = {http://bib.tiera.ru/dvd53/Ben-Zvi%20D.%20-%20The%20Challenge%20of%20Developing%20Statistical%20Literacy,%20Reasoning%20and%20Thinking(2004)(440).pdf#page=233}
}

@Article{Morris2011a,
  Title                    = {{Creating Shared Instructional Products}},
  Author                   = {Morris, A.K. and Hiebert, J.},
  Journal                  = {Educational Researcher},
  Year                     = {2011},
  Number                   = {1},
  Pages                    = {5},
  Volume                   = {40},

  File                     = {/home/huub/Documents/Research/main/Sources/Morris2011a-An\_alternative\_approach\_to\_improving\_teaching.pdf},
  Publisher                = {SAGE Publications}
}

@InCollection{Bradley2012a,
  Title                    = {{The Emergence of Scientific Reasoning}},
  Author                   = {Morris, Bradley J. and Croker, Steve and Zimmerman, Corinne and {Amy M. Masnick}},
  Booktitle                = {{Current Topics in Children's Learning and Cognition}},
  Year                     = {2012},
  Editor                   = {Kloos, Heidi and Morris, Bradley J. and Amaral, Joseph L.},

  Doi                      = {10.5772/53885},
  File                     = {/home/huub/Documents/Research/main/Sources/Bradley2012a-The\_emergence\_of\_scientific\_reasoning.pdf},
  Url                      = {http://www.intechopen.com/books/export/citation/BibTex/current-topics-in-children-s-learning-and-cognition/the-emergence-of-scientific-reasoning}
}

@InCollection{Mortensen2008a,
  Title                    = {{Change}},
  Author                   = {Mortensen, Chris},
  Booktitle                = {{The Stanford Encyclopedia of Philosophy}},
  Year                     = {2008},
  Edition                  = {Fall 2008},
  Editor                   = {Zalta, Edward N.},

  Keywords                 = {change; philosophy},
  Url                      = {http://plato.stanford.edu/archives/fall2008/entries/change/}
}

@Article{Mottier2005a,
  Title                    = {{The interpretive turn: history, memory, and storage in qualitative research}},
  Author                   = {Mottier, V{\'e}ronique},
  Journal                  = {Forum: qualitative sozialforschung},
  Year                     = {2005},

  Month                    = {may},
  Number                   = {2},
  Volume                   = {6},

  File                     = {/home/huub/Documents/Research/main/Sources/Mottier2005a-The\_interpretive\_turn-History\_memory\_and\_storage\_in\_qualitative\_research.pdf},
  Keywords                 = {qualitative research; theory},
  Url                      = {http://www.qualitative-research.net/index.php/fqs/article/view/456/973}
}

@Article{Moxley1983a,
  Title                    = {{Educational diagrams}},
  Author                   = {Moxley, Roy},
  Journal                  = {Instructional Science},
  Year                     = {1983},
  Number                   = {2},
  Pages                    = {147--160},
  Volume                   = {12},

  Doi                      = {10.1007/BF00122454},
  File                     = {/home/huub/Documents/Research/main/Sources/Moxley1983a-Educational\_diagrams.pdf},
  ISSN                     = {0020-4277},
  Language                 = {English},
  Publisher                = {Kluwer Academic Publishers},
  Url                      = {http://dx.doi.org/10.1007/BF00122454}
}

@Article{Murphy2003a,
  Title                    = {{Literature review in primary science and ICT}},
  Author                   = {Murphy, C.},
  Year                     = {2003},

  File                     = {/home/huub/Documents/Research/main/Sources/Murphy2003a-Literature\_review\_in\_primary\_science\_and\_ict.pdf},
  Keywords                 = {review; ict; primary education},
  Url                      = {http://www2.futurelab.org.uk/resources/documents/lit_reviews/Primary_Science_Review.pdf}
}

@InProceedings{Narayanan2000a,
  Title                    = {{Communicating Dynamic Behaviors: Are Interactive Multimedia Presentations Better than Static Mixed-Mode Presentations?}},
  Author                   = {Narayanan, N. and Hegarty, M.},
  Booktitle                = {{Theory and Application of Diagrams}},
  Year                     = {2000},

  Address                  = {New York},
  Pages                    = {257--288},
  Publisher                = {Springer},

  File                     = {/home/huub/Documents/Research/main/Sources/Narayanan2000a-Communicating\_dynamic\_behaviors.pdf},
  Keywords                 = {multimedia; ict},
  Url                      = {http://www.psych.ucsb.edu/~hegarty/papers/17-Communicating%20dynamic%20behaviors.pdf}
}

@InCollection{Nardi2014a,
  Title                    = {{Reflections on Visualization in Mathematics and in Mathematics Education}},
  Author                   = {Nardi, E.},
  Booktitle                = {{Mathematics \& Mathematics Education: Searching for Common Ground}},
  Publisher                = {Springer Netherlands},
  Year                     = {2014},
  Editor                   = {Fried, Michael N. and Dreyfus, Tommy},
  Pages                    = {193--220},
  Series                   = {{Advances in Mathematics Education}},

  Doi                      = {10.1007/978-94-007-7473-5_12},
  File                     = {/home/huub/Documents/Research/main/Sources/Nardi2014a-Reflections\_on\_visualization\_in\_mathematics\_and\_mathematics\_education.pdf},
  ISBN                     = {978-94-007-7472-8},
  Keywords                 = {Visual; Visualization; Visuality; Reasoning; Proof; Representation; Diagram; Picture; Image; Limit; Function; Infinity; Delta-epsilon; Algebra; Geometry; Digital geometry environment; Algebraic; Geometric; Iconic; Symbolic; Linguistic; Kinaesthetic},
  Language                 = {English},
  Url                      = {http://dx.doi.org/10.1007/978-94-007-7473-5_12}
}

@Article{Nathan2010a,
  Title                    = {{Learning sciences}},
  Author                   = {Nathan, M.J. and {Wagner Alibali}, M.},
  Journal                  = {Wiley Interdisciplinary Reviews: Cognitive Science},
  Year                     = {2010},
  Number                   = {3},
  Pages                    = {329--345},
  Volume                   = {1},

  File                     = {/home/huub/Documents/Research/main/Sources/Nathan2010a-Learning\_sciences.pdf},
  ISSN                     = {1939-5086},
  Keywords                 = {design research},
  Publisher                = {Wiley Online Library}
}

@Article{Nemirovsky1994a,
  Title                    = {{On Ways of Symbolizing: The Case of Laura and the Velocity Sign}},
  Author                   = {Nemirovsky, R.},
  Journal                  = {Journal of Mathematical Behaviour},
  Year                     = {1994},
  Pages                    = {389--422},
  Volume                   = {13},

  File                     = {/home/huub/Documents/Research/main/Sources/Nemirovsky1994a-On\_Ways\_of\_Symbolizing-The\_Case\_of\_Laura\_and\_the\_Velocity\_Sign.pdf},
  Keywords                 = {motion domain; ict; secondary education; graph; draw graph; interpret graph}
}

@TechReport{Nemirovsky1993a,
  Title                    = {{Children, Additive Change, and Calculus.}},
  Author                   = {Nemirovsky, R.},
  Year                     = {1993},

  File                     = {/home/huub/Documents/Research/main/Sources/Nemirovsky1993a-Children\_additive\_change\_and\_calculus.pdf},
  Keywords                 = {primary education; graph; change; calculus; draw graph},
  Publisher                = {TERC Communications, 2067 Massachusetts Ave., Cambridge, MA 02140.},
  Url                      = {http://eric.ed.gov/PDFS/ED365536.pdf}
}

@Article{Nemirovsky2001a,
  Title                    = {{Children creating ways to represent changing situations: On the development of homogeneous spaces}},
  Author                   = {Nemirovsky, R. and Tierney, C.},
  Journal                  = {Educational studies in mathematics},
  Year                     = {2001},
  Number                   = {1},
  Pages                    = {67--102},
  Volume                   = {45},

  File                     = {/home/huub/Documents/Research/main/Sources/Nemirovsky2001a-Children\_creating\_ways\_to\_represent\_changing\_situations-On\_the\_development\_of\_homogeneous\_spaces.pdf},
  Keywords                 = {representation; primary education; compound variable quantities; graph},
  Localfile                = {/home/huub/Documents/Research/main/Sources/Nemirovsky2001a-Children_creating_ways_to_represent_changing_situations.pdf},
  Publisher                = {Springer}
}

@Article{Nemirovsky1998a,
  Title                    = {{Body motion and graphing}},
  Author                   = {Nemirovsky, R. and Tierney, C. and Wright, T.},
  Journal                  = {Cognition and instruction},
  Year                     = {1998},
  Number                   = {2},
  Pages                    = {119--172},
  Volume                   = {16},

  File                     = {/home/huub/Documents/Research/main/Sources/Nemirovsky1998a-Body\_motion\_and\_graphing.pdf}
}

@Article{Newcombe2011a,
  Title                    = {{Six Myths About Spatial Thinking}},
  Author                   = {Newcombe, Nora S. and Stieff, Mike},
  Journal                  = {International Journal of Science Education},
  Year                     = {2011},
  Number                   = {0},
  Pages                    = {1--17},

  Doi                      = {10.1080/09500693.2011.588728},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/09500693.2011.588728},
  File                     = {/home/huub/Documents/Research/main/Sources/Newcombe2011a-Six\_myths\_about\_spatial\_thinking.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/09500693.2011.588728}
}

@Article{Newton1999a,
  Title                    = {{The place of argumentation in the pedagogy of school science}},
  Author                   = {Newton, P. and Driver, R. and Osborne, J.},
  Journal                  = {International Journal of Science Education},
  Year                     = {1999},
  Number                   = {5},
  Pages                    = {553--576},
  Volume                   = {21},

  Doi                      = {10.1080/095006999290570},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/095006999290570},
  File                     = {/home/huub/Documents/Research/main/Sources/Newton1999a-The\_place\_of\_argumentation\_in\_the\_pedagogy\_of\_school\_science.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/095006999290570}
}

@PhdThesis{Nixon2009a,
  Title                    = {{Creating and learning abstract algebra: Historical phases and conceptual levels}},
  Author                   = {Nixon, E.G.},
  Year                     = {2009},

  Url                      = {http://uir.unisa.ac.za/handle/10500/1134}
}

@Article{Noble2004a,
  Title                    = {{Learning to see: Making sense of the mathematics of change in middle school}},
  Author                   = {Noble, T. and Nemirovsky, R. and Dimattia, C. and Wright, T.},
  Journal                  = {International Journal of Computers for Mathematical Learning},
  Year                     = {2004},
  Number                   = {2},
  Pages                    = {109--167},
  Volume                   = {9},

  File                     = {/home/huub/Documents/Research/main/Sources/Noble2004a-Learning\_to\_see-Making\_sense\_of\_the\_mathematics\_of\_change\_in\_middle\_school.pdf},
  Keywords                 = {ict; graph; draw graph; interpret graph; motion domain; primary education; middle school},
  Publisher                = {Springer}
}

@Article{Noble2001a,
  Title                    = {{Experiencing Change: The Mathematics of Change in Multiple Environments}},
  Author                   = {Noble, T. and Nemirovsky, R. and Wright, T. and Tierney, C.},
  Journal                  = {Journal for Research in Mathematics Education},
  Year                     = {2001},
  Number                   = {1},
  Pages                    = {pp. 85--108},
  Volume                   = {32},

  File                     = {/home/huub/Documents/Research/main/Sources/Noble2001a-Experiencing\_change-the\_mathematics\_of\_change\_in\_multiple\_environments.pdf},
  ISSN                     = {00218251},
  Jstor_formatteddate      = {Jan., 2001},
  Keywords                 = {transfer; mathematics; change; primary education; middle school},
  Language                 = {English},
  Publisher                = {National Council of Teachers of Mathematics},
  Url                      = {http://www.jstor.org/stable/749622}
}

@InCollection{Noss2012a,
  Title                    = {{21st Century Learning for 21st Century Skills: What Does It Mean, and How Do We Do It?}},
  Author                   = {Noss, R.},
  Booktitle                = {{21st Century Learning for 21st Century Skills}},
  Publisher                = {Springer Berlin Heidelberg},
  Year                     = {2012},
  Editor                   = {Ravenscroft, Andrew and Lindstaedt, Stefanie and Kloos, CarlosDelgado and Hern{\'a}ndez-Leo, Davinia},
  Pages                    = {3--5},
  Series                   = {{Lecture Notes in Computer Science}},
  Volume                   = {7563},

  Doi                      = {10.1007/978-3-642-33263-0_1},
  File                     = {/home/huub/Documents/Research/main/Sources/Noss2012a-21st\_century\_learning\_for\_21st\_century\_skills-what\_and\_how.pdf},
  ISBN                     = {978-3-642-33262-3},
  Url                      = {http://dx.doi.org/10.1007/978-3-642-33263-0_1}
}

@Article{Noss1997a,
  Title                    = {{The Construction of Mathematical Meanings: Connecting the Visual with the Symbolic}},
  Author                   = {Noss, Richard and Healy, Lulu and Hoyles, Celia},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {1997},
  Number                   = {2},
  Pages                    = {pp. 203--233},
  Volume                   = {33},

  Abstract                 = {In this paper, we explore the relationship between learners' actions, visualisations and the means by which these are articulated. We describe a microworld, Mathsticks, designed to help students construct mathematical meanings by forging links between the rhythms of their actions and the visual and corresponding symbolic representations they developed. Through a case study of two students interacting with Mathsticks, we illustrate a view of mathematics learning which places at its core the medium of expression, and the building of connections between different mathematisations rather than ascending to hierarchies of decontextualisation.},
  Localfile                = {/home/huub/Documents/Research/main/Sources/Noss1997a-The_construction_of_mathematical_meanings-connecting_the_visual_with_the_symbolic.pdf},
  Url                      = {http://www.jstor.org/stable/3482643}
}

@Article{Notari2008a,
  Title                    = {{Math is for everyone: Strategies for supporting early mathematical competencies in young children}},
  Author                   = {Notari-Syverson, A. and Sadler, F.H.},
  Journal                  = {Young Exceptional Children},
  Year                     = {2008},
  Number                   = {3},
  Pages                    = {2},
  Volume                   = {11},

  ISSN                     = {1096-2506},
  Publisher                = {SAGE Publications}
}

@Article{Nowicki2013a,
  Title                    = {{Factors Influencing Science Content Accuracy in Elementary Inquiry Science Lessons}},
  Author                   = {Nowicki, BarbaraL. and Sullivan-Watts, Barbara and Shim, MinsukK. and Young, Betty and Pockalny, Robert},
  Journal                  = {Research in Science Education},
  Year                     = {2013},
  Number                   = {3},
  Pages                    = {1135--1154},
  Volume                   = {43},

  Doi                      = {10.1007/s11165-012-9303-4},
  File                     = {/home/huub/Documents/Research/main/Sources/Nowicki2013a-Factors\_influencing\_science\_content\_accuracy\_in\_elementary\_inquiry\_science\_lessons.pdf},
  ISSN                     = {0157-244X},
  Keywords                 = {Elementary education; Inquiry science; Preservice students; Science content accuracy; Science content knowledge},
  Language                 = {English},
  Publisher                = {Springer Netherlands},
  Url                      = {http://dx.doi.org/10.1007/s11165-012-9303-4}
}

@Article{Nunes1993a,
  Title                    = {{Tools for thought: the measurement of length and area}},
  Author                   = {Nunes, T. and Light, P. and Mason, J.},
  Journal                  = {Learning and Instruction},
  Year                     = {1993},
  Number                   = {1},
  Pages                    = {39--54},
  Volume                   = {3},

  Doi                      = {10.1016/S0959-4752(09)80004-2},
  File                     = {/home/huub/Documents/Research/main/Sources/Nunes1993a-Tools\_for\_thought-The\_measurement\_of\_length\_and\_area.pdf},
  ISSN                     = {0959-4752},
  Url                      = {http://www.sciencedirect.com/science/article/pii/S0959475209800042}
}

@Article{Nussbaum2009a,
  Title                    = {{Technology as small group face-to-face Collaborative Scaffolding}},
  Author                   = {Nussbaum, M. and Alvarez, C. and McFarlane, A. and Gomez, F. and Claro, S. and Radovic, D.},
  Journal                  = {Computers \& Education},
  Year                     = {2009},
  Number                   = {1},
  Pages                    = {147--153},
  Volume                   = {52},

  File                     = {/home/huub/Documents/Research/main/Sources/Nussbaum2009a-Technology\_as\_small\_group\_face-to-face\_collaborative\_scaffolding.pdf}
}

@InCollection{Orhun1995a,
  Title                    = {{Design of computer-based cognitive tools}},
  Author                   = {Orhun, E.},
  Booktitle                = {{Computers and Exploratory Learning}},
  Publisher                = {Springer},
  Year                     = {1995},
  Editor                   = {diSessa, Andrea A. and Hoyles, Celia and Noss, Richard and Edwards, Laurie D.},
  Pages                    = {305--319},

  File                     = {/home/huub/Documents/Research/main/Sources/Orhun1995a-Design\_of\_computer-based\_cognitive\_tools.pdf},
  Keywords                 = {ict; theory}
}

@Article{Orilia2011a,
  Title                    = {{Dynamic events and presentism}},
  Author                   = {Orilia, F.},
  Journal                  = {Philosophical Studies},
  Year                     = {2011},
  Pages                    = {1--8},

  File                     = {/home/huub/Documents/Research/main/Sources/Orilia2011a-Dynamic\_events\_and\_presentism.pdf},
  Keywords                 = {philosophy; instantaneous speed},
  Publisher                = {Springer},
  Url                      = {http://docenti.unimc.it/docenti/francesco-orilia/preprint_events_and_presentism_april_1_2011_-_copia.pdf}
}

@Book{Osborne2008a,
  Title                    = {{Science education in Europe: Critical reflections}},
  Author                   = {J. Osborne and J. Dillon},
  Year                     = {2008},

  File                     = {/home/huub/Documents/Research/main/Sources/Osborne2008a-Science\_education\_in\_Europe-critical\_reflections.pdf},
  Keywords                 = {science; secondary education},
  Url                      = {http://www.pollen-europa.net/pollen_dev/Images_Editor/Nuffield%20report.pdf}
}

@Article{Osborne2001a,
  Title                    = {{Enhancing the quality of argument in school science}},
  Author                   = {Osborne, J. and Erduran, S. and Simon, S. and Monk, M.},
  Journal                  = {School Science Review},
  Year                     = {2001},
  Number                   = {301},
  Pages                    = {63--70},
  Volume                   = {82},

  File                     = {/home/huub/Documents/Research/main/Sources/Osborne2001a-Enhancing\_the\_quality\_of\_argument\_in\_school\_science.pdf},
  Url                      = {https://ase.org.uk/journals/school-science-review/2001/06/301/1318/SSR301Jun2001p63.pdf}
}

@Article{Osborne2003a,
  Title                    = {{Literature review in science education and the role of ICT: Promise, problems and future directions}},
  Author                   = {Osborne, J. and Hennessy, S.},
  Year                     = {2003},

  File                     = {/home/huub/Documents/Research/main/Sources/Osborne2003a-Literature\_review\_in\_science\_education\_and\_the\_role\_of\_ict-promise\_problems\_and\_future\_directions.pdf},
  Keywords                 = {ict; review; secondary education},
  Url                      = {http://www2.futurelab.org.uk/resources/documents/lit_reviews/Secondary_Science_Review.pdf}
}

@Article{Palincsar2002a,
  Title                    = {{Designing collaborative learning contexts}},
  Author                   = {Palincsar, A.S. and Herrenkohl, L.R.},
  Journal                  = {Theory into practice},
  Year                     = {2002},
  Number                   = {1},
  Pages                    = {26--32},
  Volume                   = {41},

  File                     = {/home/huub/Documents/Research/main/Sources/Palincsar2002a-Designing\_collaborative\_learning\_contexts.pdf}
}

@Article{Papadopoulos2009a,
  Title                    = {{ICT in the Classroom Microworld-Some Reservations}},
  Author                   = {Papadopoulos, I. and Dagdilelis, V.},
  Journal                  = {Best Practices for the Knowledge Society. Knowledge, Learning, Development and Technology for All},
  Year                     = {2009},
  Pages                    = {137--145},

  File                     = {/home/huub/Documents/Research/main/Sources/Papadopoulos2009a-ICT\_in\_the\_classroom\_microworld-some\_reservations.pdf},
  Keywords                 = {ict},
  Publisher                = {Springer}
}

@InCollection{Papert1991a,
  Title                    = {{Situating constructionism}},
  Author                   = {Papert, S},
  Booktitle                = {{Constructionism}},
  Year                     = {1991},
  Editor                   = {Harel, Idit and Papert, Seymour},
  Pages                    = {1--11},

  File                     = {/home/huub/Documents/Research/main/Sources/Papert1991a-Situating\_constructivism.pdf},
  Keywords                 = {constructionism; papert},
  Url                      = {http://www.papert.org/articles/SituatingConstructionism.html}
}

@InCollection{Papert1991b,
  Title                    = {{Perestroika and epistemological politics}},
  Author                   = {Papert, Seymour},
  Booktitle                = {{Constructionism}},
  Year                     = {1991},
  Editor                   = {Harel, Idit and Papert, Seymour},
  Pages                    = {13--28},

  File                     = {/home/huub/Documents/Research/main/Sources/Papert1991b-Perestroika\_and\_epistemological\_politics.pdf}
}

@Book{Papert1993a,
  Title                    = {{Mindstorms: Children, computers, and powerful ideas}},
  Author                   = {Papert, S.},
  Publisher                = {Basic Books},
  Year                     = {1993},
  Edition                  = {2nd ed.},

  Keywords                 = {mathematics; ict; primary education; middle school; papert; programming}
}

@Article{Papert1993b,
  Title                    = {{The children's machine}},
  Author                   = {Papert, Seymour},
  Journal                  = {Technology Review},
  Year                     = {1993},

  Month                    = {jul},
  Number                   = {5},
  Pages                    = {28--36},
  Volume                   = {96},

  Keywords                 = {ict; history}
}

@Article{Seong2009a,
  Title                    = {{Do students benefit equally from interactive computer simulations regardless of prior knowledge levels?}},
  Author                   = {Park, Seong Ik and Lee, Gyumin and Kim, Meekyoung},
  Journal                  = {Computers \&amp; Education},
  Year                     = {2009},
  Number                   = {3},
  Pages                    = {649--655},
  Volume                   = {52},

  Doi                      = {10.1016/j.compedu.2008.11.014},
  File                     = {/home/huub/Documents/Research/main/Sources/Seong2009a-Do\_students\_benefit\_equally\_from\_interactive\_computer\_simulations\_regardless\_of\_prior\_knowledge\_levels.pdf},
  ISSN                     = {0360-1315},
  Url                      = {http://www.sciencedirect.com/science/article/pii/S0360131508001826}
}

@Article{Parnafes2007a,
  Title                    = {{What Does" Fast" Mean? Understanding the Physical World Through Computational Representations}},
  Author                   = {Parnafes, O.},
  Journal                  = {The Journal of the Learning Sciences},
  Year                     = {2007},
  Number                   = {3},
  Pages                    = {415--450},
  Volume                   = {76},

  File                     = {/home/huub/Documents/Research/main/Sources/Parnafes2007a-What\_does\_fast\_mean-Understanding\_the\_physical\_world\_through\_computational\_representations.pdf},
  Keywords                 = {motion domain; representation; ict},
  Url                      = {http://131.193.130.213/media//Parnafes_JLS2007.pdf}
}

@Article{Parnafes2004a,
  Title                    = {{Relations between Types of Reasoning and Computational Representations}},
  Author                   = {Parnafes, Orit and Disessa, Andrea},
  Journal                  = {International Journal of Computers for Mathematical Learning},
  Year                     = {2004},
  Note                     = {10.1007/s10758-004-3794-7},
  Pages                    = {251--280},
  Volume                   = {9},

  Affiliation              = {Graduate School of Education University of California Berkeley USA},
  File                     = {/home/huub/Documents/Research/main/Sources/Parnafes2004a-Relations\_between\_types\_of\_reasoning\_and\_computational\_representations.pdf},
  ISSN                     = {1382-3892},
  Issue                    = {3},
  Keyword                  = {Humanities, Social Sciences and Law},
  Keywords                 = {ict; middle school; representation; change},
  Publisher                = {Springer Netherlands},
  Url                      = {http://dx.doi.org/10.1007/s10758-004-3794-7}
}

@TechReport{Pedro2006a,
  Title                    = {{The New Millennium Learners: Challenging our Views on ICT and Learning}},
  Author                   = {Pedr{\'o}, F.},
  Institution              = {Inter-American Development Bank},
  Year                     = {2006},
  Month                    = may,
  Number                   = {9228},
  Type                     = {IDB Publications},

  Abstract                 = {This paper is intended to synthesise available evidences on the emergence of a generational approach to learning and knowledge management strongly influenced by having always been living surrounded by and interacting continuously with information and communication technologies (ICT).},
  File                     = {/home/huub/Documents/Research/main/Sources/Pedro2006a-The\_new\_millennium\_learners.pdf},
  Keywords                 = {Education; Primary \& Secondary Education; Tecnolog{\'i}a en la Educaci{\'o}n Technology in Education},
  Url                      = {http://ideas.repec.org/p/idb/brikps/9228.html}
}

@Article{Pelgrum1993a,
  Title                    = {{The worldwide use of computers: a description of main trends}},
  Author                   = {Pelgrum, W.J. and Plomp, T.},
  Journal                  = {Computers \& Education},
  Year                     = {1993},
  Number                   = {4},
  Pages                    = {323--332},
  Volume                   = {20},

  File                     = {/home/huub/Documents/Research/main/Sources/Pelgrum1993a-The\_worldwide\_use\_of\_computers.pdf},
  HowPublished             = {\url{http://plato.stanford.edu/archives/fall2008/entries/change/}},
  Keywords                 = {ict; history}
}

@Article{Penner2000a,
  Title                    = {{Cognition, computers, and synthetic science: Building knowledge and meaning through modeling}},
  Author                   = {Penner, D.E.},
  Journal                  = {Review of research in education},
  Year                     = {2000},
  Pages                    = {1--35},
  Volume                   = {25},

  File                     = {/home/huub/Documents/Research/main/Sources/Penner2000a-Cognition\_computers\_and\_synthetic\_science.pdf},
  Keywords                 = {theory; ict; modeling; programming}
}

@InCollection{Perkins2006a,
  Title                    = {{Constructivism and troublesome knowledge}},
  Author                   = {Perkins, David},
  Booktitle                = {{Overcoming barriers to student understanding: Threshold concepts and troublesome knowledge}},
  Publisher                = {Routledge London},
  Year                     = {2006},
  Editor                   = {Meyer, Jan H.F. and Land, Ray},
  Pages                    = {33--47},

  File                     = {/home/huub/Documents/Research/main/Sources/Perkins2006a-Constructivism\_and\_troublesome\_knowledge.pdf}
}

@InCollection{Perkins1993a,
  Title                    = {{Person-plus: A distributed view of thinking and learning}},
  Author                   = {Perkins, D.N.},
  Booktitle                = {{Distributed cognitions: Psychological and educational considerations}},
  Year                     = {1993},
  Editor                   = {Salomon, G.},
  Pages                    = {88--110},

  File                     = {/home/huub/Documents/Research/main/Sources/Perkins1993a-Person-plus-A\_distributed\_view\_of\_thinking\_and\_learning.pdf}
}

@Article{Perkins1999a,
  Title                    = {{The many faces}},
  Author                   = {Perkins, David},
  Journal                  = {Educational Leadership: Associations for supervision and curriculum development, Nov},
  Year                     = {1999},
  Pages                    = {6--11},

  File                     = {/home/huub/Documents/Research/main/Sources/Perkins1999a-The\_many\_faces\_of\_constructivism.pdf},
  Url                      = {http://moodle.urbandale.k12.ia.us/file.php/2324/Construction_of_Learning_Resources/The_Many_Faces_of_Constructivism.pdf}
}

@Article{Phillips1995a,
  Title                    = {{The good, the bad, and the ugly: The many faces of constructivism}},
  Author                   = {Phillips, D.C.},
  Journal                  = {Educational researcher},
  Year                     = {1995},
  Pages                    = {5--12},

  File                     = {/home/huub/Documents/Research/main/Sources/Phillips1995a-The\_good\_the\_bad\_and\_the\_ugly-The\_many\_fases\_of\_constructivism.pdf}
}

@InCollection{Phillips2006a,
  Title                    = {{From Plato to Brown and beyond: Theory, practice, and the promise of design experiments}},
  Author                   = {Phillips, Denis C and Dolle, Jonathan R},
  Booktitle                = {{Instructional psychology: Past, present and future trends. Sixteen essays in honour of Erik De Corte}},
  Publisher                = {Elsevier},
  Year                     = {2006},
  Editor                   = {Verschaffel, L. and Dochy, F. and Boekaerts, M. and Vosniadou, S.},
  Pages                    = {277--292},

  Localfile                = {/home/huub/to-research/Sources/Phillips2006a-From_Plato_to_Brown_and_beyond-theory_practice_and_the_promise_of_design_experiments.pdf},
  Url                      = {http://ir.nmu.org.ua/bitstream/handle/123456789/122437/bccd9b1e7ec0083c775a0f8eec5cdaab.pdf?sequence=1&isAllowed=y#page=310}
}

@Article{Phillips1997a,
  Title                    = {{Can juniors read graphs? A review and analysis of some computer-based activities}},
  Author                   = {Phillips, R.J.},
  Journal                  = {Technology, Pedagogy and Education},
  Year                     = {1997},
  Number                   = {1},
  Pages                    = {49--58},
  Volume                   = {6},

  File                     = {/home/huub/Documents/Research/main/Sources/Phillips1997a-Can\_juniors\_read\_graphs.pdf},
  ISSN                     = {1475-939X},
  Keywords                 = {review; primary education; graph; interpret graph},
  Publisher                = {Routledge}
}

@Article{Piaget2000a,
  Title                    = {{Commentary on Vygotsky's criticisms of Language and thought of the child and Judgement and reasoning in the child}},
  Author                   = {Piaget, J.},
  Journal                  = {New Ideas in Psychology},
  Year                     = {2000},
  Number                   = {2--3},
  Pages                    = {241--259},
  Volume                   = {18},

  Doi                      = {10.1016/S0732-118X(00)00012-X},
  File                     = {/home/huub/Documents/Research/main/Sources/Piaget2000a-Commentary\_on\_Vygotsky.pdf},
  ISSN                     = {0732-118X},
  Origlanguage             = {French},
  Translator               = {Leslie Smith},
  Url                      = {http://www.sciencedirect.com/science/article/pii/S0732118X0000012X}
}

@Book{Piaget1970a,
  Title                    = {{The Child's Conception of Movement and Speed}},
  Author                   = {Piaget, J.},
  Publisher                = {Ballantine Books},
  Year                     = {1970},

  Address                  = {New York},
  Note                     = {First published in 1946 in French as {Les Notions de Mouvement et de Vitesse chez l'Enfant}; translated by G.E.T. Holloway and M.J. MacKenzie.},

  File                     = {/home/huub/Documents/Research/main/Sources/Piaget1970a-Epistemology\_and\_psychology\_of\_functions-PART3.pdf},
  Keywords                 = {function; piaget; motion domain}
}

@Book{Piaget1977a,
  Title                    = {{Epistemology and psychology of functions}},
  Author                   = {Piaget, J. and Grize, J. and Szeminska, A. and Bang, V.},
  Publisher                = {D. Reidel Publishing Company},
  Year                     = {1977},
  Series                   = {{Synthese library}},
  Volume                   = {83},

  Keywords                 = {function; piaget}
}

@Article{Pierce2010a,
  Title                    = {{Mapping Pedagogical Opportunities Provided by Mathematics Analysis Software}},
  Author                   = {Pierce, Robyn and Stacey, Kaye},
  Journal                  = {International Journal of Computers for Mathematical Learning},
  Year                     = {2010},
  Number                   = {1},
  Pages                    = {1--20},
  Volume                   = {15},

  Doi                      = {10.1007/s10758-010-9158-6},
  File                     = {/home/huub/Documents/Research/main/Sources/Pierce2010a-Mapping\_pedagogical\_opportunities\_provided\_by\_mathematics\_analysis\_software.pdf},
  ISSN                     = {1382-3892},
  Keywords                 = {Technology; Mathematics; Pedagogical opportunities; Computer algebra systems; Dynamic geometry; Spreadsheets; Graphics calculators},
  Language                 = {English},
  Publisher                = {Springer Netherlands},
  Url                      = {http://dx.doi.org/10.1007/s10758-010-9158-6}
}

@Article{Pijls2011a,
  Title                    = {{Students discussing their mathematical ideas: the role of the teacher}},
  Author                   = {Pijls, Monique and Dekker, Rijkje},
  Journal                  = {Mathematics Education Research Journal},
  Year                     = {2011},
  Pages                    = {379--396},
  Volume                   = {23},

  Doi                      = {10.1007/s13394-011-0022-3},
  File                     = {/home/huub/Documents/Research/main/Sources/Pijls2011a-Students\_discussing\_their\_mathematical\_ideas-the\_role\_of\_the\_teacher.pdf},
  ISSN                     = {1033-2170},
  Issue                    = {4},
  Keywords                 = {Mathematics; Teacher; Collaborative learning; Process help},
  Language                 = {English},
  Publisher                = {Springer Netherlands},
  Url                      = {http://dx.doi.org/10.1007/s13394-011-0022-3}
}

@InCollection{Pitta2013a,
  Title                    = {{Developing and Enhancing Elementary School Students{\rq} Higher Order Mathematical Thinking with SimCalc}},
  Author                   = {Pitta-Pantazi, Demetra and Sophocleous, Paraskevi and Christou, Constantinos},
  Booktitle                = {{The SimCalc Vision and Contributions}},
  Publisher                = {Springer Netherlands},
  Year                     = {2013},
  Editor                   = {Hegedus, Stephen J. and Roschelle, Jeremy},
  Pages                    = {319--340},
  Series                   = {{Advances in Mathematics Education}},

  Doi                      = {10.1007/978-94-007-5696-0_18},
  File                     = {/home/huub/Documents/Research/main/Sources/Pitta2013a-Developing\_and\_enhancing\_elementary\_school\_students\_higher\_order\_mathematical\_thinking\_with\_simcalc.pdf},
  ISBN                     = {978-94-007-5695-3},
  Keywords                 = {Analysis; Connection; Evaluation; Creative thinking; Critical thinking; Complex thinking; Elaborating; Imagining; Synthesizing; Higher order thinking; Mindtool},
  Language                 = {English},
  Url                      = {http://dx.doi.org/10.1007/978-94-007-5696-0_18}
}

@Article{Ploetzner2009a,
  Title                    = {{Students{\rq} difficulties in learning from dynamic visualisations and how they may be overcome}},
  Author                   = {Ploetzner, Rolf and Lippitsch, Stefan and Galmbacher, Matthias and Heuer, Dieter and Scherrer, Sarah},
  Journal                  = {Computers in Human Behavior},
  Year                     = {2009},
  Number                   = {1},
  Pages                    = {56--65},
  Volume                   = {25},

  Doi                      = {10.1016/j.chb.2008.06.006},
  File                     = {/home/huub/Documents/Research/main/Sources/Ploetzner2009a-Students\_difficulties\_in\_learning\_from\_dynamic\_visualisations.pdf},
  ISSN                     = {0747-5632},
  Keywords                 = {Computer assisted learning},
  Url                      = {http://www.sciencedirect.com/science/article/pii/S074756320800126X}
}

@InCollection{Plomp2013a,
  Title                    = {{Educational Design Research: An introduction}},
  Author                   = {Plomp, T.},
  Booktitle                = {{Educational Design Research}},
  Publisher                = {SLO},
  Year                     = {2013},
  Editor                   = {Plomp, T. and Nieveen, N.},
  Pages                    = {11--50},
  Volume                   = {A},

  File                     = {/home/huub/Documents/Research/main/Sources/Nieveen2013a-Educational\_design\_research.pdf},
  Url                      = {http://international.slo.nl/edr/}
}

@InCollection{Plomp2013b,
  Title                    = {{References and sources on educational design research}},
  Author                   = {Plomp, T. and Nieveen, N.},
  Booktitle                = {{Educational Design Research}},
  Publisher                = {SLO},
  Year                     = {2013},
  Editor                   = {Plomp, T. and Nieveen, N.},
  Pages                    = {171--199},
  Volume                   = {A},

  File                     = {/home/huub/Documents/Research/main/Sources/Nieveen2013a-Educational\_design\_research.pdf},
  Url                      = {http://international.slo.nl/edr}
}

@Article{Plomp1991a,
  Title                    = {{Introduction of computers in education: State of the art in eight countries}},
  Author                   = {Plomp, T. and Pelgrum, W.J.},
  Journal                  = {Computers \& Education},
  Year                     = {1991},
  Number                   = {3},
  Pages                    = {249--258},
  Volume                   = {17},

  File                     = {/home/huub/Documents/Research/main/Sources/Plomp1991a-Introduction\_of\_computers\_in\_education.pdf},
  Keywords                 = {ict; history}
}

@Article{Ponterotto2006a,
  Title                    = {{Brief note on the origins, evolution, and meaning of the qualitative research concept ``thick description.''}},
  Author                   = {Ponterotto, J.G.},
  Journal                  = {The Qualitative Report},
  Year                     = {2006},
  Number                   = {3},
  Pages                    = {538--549},
  Volume                   = {11},

  File                     = {/home/huub/Documents/Research/main/Sources/Ponterotto2006a-Brief\_note\_on\_the\_origins\_evolution\_and\_meaning\_of\_the\_qualitative\_research\_concept\_thick\_description.pdf},
  Url                      = {http://www.nova.edu/ssss/QR/QR11-3/ponterotto.pdf}
}

@Article{Prain2012a,
  Title                    = {{Learning Through Constructing Representations in Science: A framework of representational construction affordances}},
  Author                   = {Prain, Vaughan and Tytler, Russell},
  Journal                  = {International Journal of Science Education},
  Year                     = {2012},
  Number                   = {17},
  Pages                    = {2751--2773},
  Volume                   = {34},

  Doi                      = {10.1080/09500693.2011.626462},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/09500693.2011.626462},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/09500693.2011.626462}
}

@Article{Pratt1995a,
  Title                    = {{Young children's active and passive graphing}},
  Author                   = {Pratt, D.},
  Journal                  = {Journal of Computer Assisted Learning},
  Year                     = {1995},
  Number                   = {3},
  Pages                    = {157--169},
  Volume                   = {11},

  Doi                      = {10.1111/j.1365-2729.1995.tb00130.x},
  File                     = {/home/huub/Documents/Research/main/Sources/Pratt1995a-Young\_childrens\_active\_and\_passive\_graphing.pdf},
  ISSN                     = {1365-2729},
  Keywords                 = {Keywords; Graphing; Mathematics education; Modelling; Primary schools; Spreadsheets.},
  Publisher                = {Blackwell Publishing Ltd},
  Url                      = {http://dx.doi.org/10.1111/j.1365-2729.1995.tb00130.x}
}

@InCollection{Preece1983a,
  Title                    = {{Graphs are not straightforward}},
  Author                   = {Preece, Jenny},
  Booktitle                = {{The psychology of computer use}},
  Publisher                = {Academic press},
  Year                     = {1983},
  Editor                   = {Green, T.R.G. and Payne, S.J. and van der Veer, G.C.},
  Pages                    = {41--56},

  File                     = {/home/huub/Documents/Research/main/Sources/Preece1983a-Graphs\_are\_not\_straightforward.pdf},
  Keywords                 = {ict; secondary education; alternative domain; population; graph; interpret graph}
}

@Article{Prensky2001a,
  Title                    = {{Digital natives, digital immigrants Part 1}},
  Author                   = {Prensky, M.},
  Journal                  = {On the horizon},
  Year                     = {2001},
  Number                   = {5},
  Pages                    = {1--6},
  Volume                   = {9},

  File                     = {/home/huub/Documents/Research/main/Sources/Prensky2001a-Digital\_natives\_digital\_immigrants.pdf},
  Url                      = {http://www.marcprensky.com/writing/prensky%20-%20digital%20natives,%20digital%20immigrants%20-%20part1.pdf}
}

@Article{Presmeg2008a,
  Title                    = {{Spatial abilities research as a foundation for visualization in teaching and learning mathematics}},
  Author                   = {Presmeg, N.},
  Journal                  = {Critical Issues in Mathematics Education},
  Year                     = {2008},
  Pages                    = {83--95},

  File                     = {/home/huub/Documents/Research/main/Sources/Presmeg2008a-Spacial\_abilities\_research\_as\_a\_foundation\_for\_visualization\_in\_teaching\_and\_learning\_mathematics.pdf},
  Publisher                = {Springer}
}

@Article{Presmeg2006a,
  Title                    = {{Research on visualization in learning and teaching mathematics}},
  Author                   = {Presmeg, NC},
  Journal                  = {Handbook of research on the psychology of mathematics education: Past, present and future},
  Year                     = {2006},
  Pages                    = {205--235},

  File                     = {/home/huub/Documents/Research/main/Sources/Presmeg2006a-Research\_on\_visualization\_in\_learning\_and\_teaching\_mathematics.pdf},
  Keywords                 = {mathematics; visualization},
  Url                      = {http://www.kaputcenter.umassd.edu/downloads/symcog/bib/pmeVisualizationFinalAPA.pdf}
}

@Book{Putnam1991a,
  Title                    = {{Representation and reality}},
  Author                   = {Putnam, Hilary},
  Publisher                = {The MIT Press},
  Year                     = {1991}
}

@Article{Quintana2004a,
  Title                    = {{A Scaffolding Design Framework for Software to Support Science Inquiry}},
  Author                   = {Quintana, Chris and Reiser, Brian J. and Davis, E. and Krajcik, Joseph and Fretz, Eric and Duncan, Ravit Golan and Kyza, Eleni and Edelson, Daniel and Soloway, Elliot},
  Journal                  = {Journal of the Learning Sciences},
  Year                     = {2004},
  Number                   = {3},
  Pages                    = {337--386},
  Volume                   = {13},

  Doi                      = {10.1207/s15327809jls1303_4},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1207/s15327809jls1303\_4},
  File                     = {/home/huub/Documents/Research/main/Sources/Quintana2004a-A\_scaffolding\_design\_framework\_for\_software\_to\_support\_science\_inquiry.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1207/s15327809jls1303_4}
}

@InProceedings{Radford2005a,
  Title                    = {{On embodiment, artifacts, and signs: A semiotic-cultural perspective on mathematical thinking}},
  Author                   = {Radford, L. and Bardini, C. and Sabena, C. and Diallo, P. and Simbagoye, A.},
  Booktitle                = {{Proceedings of the 29th Conference of the International Group for the Psychology of Mathematics Education}},
  Year                     = {2005},
  Editor                   = {Chick, H. L. and Vincent, J. L.},
  Pages                    = {113--120},

  File                     = {/home/huub/Documents/Research/main/Sources/Radford2005a-On\_embodiment\_artifacts\_and\_signs.pdf},
  Keywords                 = {mathematics}
}

@Article{Rasmussen2006a,
  Title                    = {{Pedagogical Content Tools: Integrating Student Reasoning and Mathematics in Instruction}},
  Author                   = {Rasmussen, Chris and Marrongelle, Karen},
  Journal                  = {Journal for Research in Mathematics Education},
  Year                     = {2006},
  Number                   = {5},
  Pages                    = {388--420},
  Volume                   = {37},

  Abstract                 = {Teaching in a manner consistent with reform recommendations is a challenging and often overwhelming task. Part of this challenge involves using students' thinking and understanding as a basis for the development of mathematical ideas (cf. NCTM, 2000). The purpose of this article is to address this challenge by developing the notion of pedagogical content tool. A pedagogical content tool is a device such as a graph, diagram, equation, or verbal statement that a teacher intentionally uses to connect to student thinking while moving the mathematical agenda forward. We tender two examples of pedagogical content tools: Transformational record and generative alternative. These two pedagogical content tools are put forth as instructional counterparts to the Realistic Mathematics Education (RME) design heuristics of emergent models and guided reinvention, respectively. We illustrate the pedagogical content tools of transformational record and generative alternative by drawing on examples from two classroom teaching experiments in undergraduate differential equations.},
  File                     = {/home/huub/Documents/Research/main/Sources/Rasmussen2006a-Pedagogical\_content\_tools.pdf},
  ISSN                     = {00218251},
  Jstor_formatteddate      = {Nov., 2006},
  Language                 = {English},
  Publisher                = {National Council of Teachers of Mathematics},
  Url                      = {http://www.jstor.org/stable/30034860}
}

@Article{Ray1994a,
  Title                    = {{An evolutionary approach to synthetic biology}},
  Author                   = {Ray, T.S.},
  Journal                  = {Artificial Life},
  Year                     = {1994},
  Number                   = {1/2},
  Pages                    = {179--209},
  Volume                   = {1},

  File                     = {/home/huub/Documents/Research/main/Sources/Ray1994a-An\_evolutionary\_approach\_to\_synthetic\_biology.pdf}
}

@Article{Reeves2011a,
  Title                    = {{Can Educational Research Be Both Rigorous and Relevant?}},
  Author                   = {Reeves, T.C.},
  Journal                  = {Educational Designer},
  Year                     = {2011},
  Number                   = {4},
  Volume                   = {1},

  HowPublished             = {Retrieved from: http://www.educationaldesigner.org/ed/volume1/issue4/article13},
  Localfile                = {/home/huub/to-research/Sources/Reeves2011a-Can_educational_research_be_both_rigorous_and_relevant.pdf},
  Url                      = {http://www.educationaldesigner.org/ed/volume1/issue4/article13}
}

@InProceedings{Reeves2010a,
  Title                    = {{Publishing and perishing: The critical importance of educational design research}},
  Author                   = {Reeves, T.C. and McKenney, S. and Herrington, J.},
  Booktitle                = {{Proceedings ascilite Sydney 2010}},
  Year                     = {2010},
  Pages                    = {787--794},

  Keywords                 = {design research}
}

@InCollection{Reimann2011a,
  Title                    = {{Design-Based Research}},
  Author                   = {Reimann, Peter},
  Booktitle                = {{Methodological Choice and Design}},
  Publisher                = {Springer Netherlands},
  Year                     = {2011},
  Editor                   = {Markauskaite, Lina and Freebody, Peter and Irwin, Jude},
  Pages                    = {37--50},
  Series                   = {{Methodos Series}},
  Volume                   = {9},

  File                     = {/home/huub/Documents/Research/main/Sources/Reimann2011a-Design\_based\_research.pdf},
  ISBN                     = {978-90-481-8933-5},
  Keywords                 = {design research}
}

@Article{Reimann2009a,
  Title                    = {{Time is precious: Variable-and event-centred approaches to process analysis in CSCL research}},
  Author                   = {Reimann, P.},
  Journal                  = {International Journal of Computer-Supported Collaborative Learning},
  Year                     = {2009},
  Number                   = {3},
  Pages                    = {239--257},
  Volume                   = {4},

  File                     = {/home/huub/Documents/Research/main/Sources/Reimann2009a-Time\_is\_precious-Variable\_and\_event-centered\_approaches\_to\_process\_analysis\_in\_CSCL\_research.pdf},
  Publisher                = {Springer}
}

@Article{Reiser2004a,
  Title                    = {{Scaffolding complex learning: The mechanisms of structuring and problematizing student work}},
  Author                   = {Reiser, B.J.},
  Journal                  = {The Journal of the Learning Sciences},
  Year                     = {2004},
  Number                   = {3},
  Pages                    = {273--304},
  Volume                   = {13},

  File                     = {/home/huub/Documents/Research/main/Sources/Reiser2004a-Scaffolding\_complex\_learning-The\_mechanisms\_of\_structuring\_and\_problematizing\_student\_work.pdf},
  Publisher                = {Taylor \& Francis}
}

@InProceedings{Repenning1999a,
  Title                    = {{Collaborative use \& design of interactive simulations}},
  Author                   = {Repenning, Alexander and Ioannidou, Andri and Phillips, Jonathan},
  Booktitle                = {{Proceedings of the 1999 conference on Computer support for collaborative learning}},
  Year                     = {1999},
  Publisher                = {International Society of the Learning Sciences},
  Series                   = {{CSCL '99}},

  Acmid                    = {1150299},
  Articleno                = {59},
  File                     = {/home/huub/Documents/Research/main/Sources/Repenning1999a-Collaborative\_use\_and\_design\_of\_interactive\_simulations.pdf},
  Keywords                 = {agents \& intelligent systems; collaboration; end-user programming; interactive simulations; multimedia; use vs. design},
  Location                 = {Palo Alto, California},
  Url                      = {http://dl.acm.org/citation.cfm?id=1150240.1150299}
}

@InCollection{Resnick1991b,
  Title                    = {{Xylophones, hamsters, and fireworks: the role of diversity in constructionist activities}},
  Author                   = {Resnick, Mitchel},
  Booktitle                = {{Constructionism}},
  Year                     = {1991},
  Editor                   = {Harel, Idit and Papert, Seymour},
  Pages                    = {151--158},

  File                     = {/home/huub/Documents/Research/main/Sources/Resnick1991b-Xylophones\_hamsters\_and\_fireworks.pdf}
}

@InCollection{Resnick1991a,
  Title                    = {{LEGO/Logo}},
  Author                   = {Resnick, Mitchel and Ocko, Stephen},
  Booktitle                = {{Constructionism}},
  Year                     = {1991},
  Editor                   = {Harel, Idit and Papert, Seymour},
  Pages                    = {141--150},

  File                     = {/home/huub/Documents/Research/main/Sources/Resnick1991a-LEGO-logo.pdf}
}

@Article{Ritchie2001a,
  Title                    = {{Actions and discourses for transformative understanding in a middle school science class}},
  Author                   = {Ritchie, Stephen M.},
  Journal                  = {International Journal of Science Education},
  Year                     = {2001},
  Number                   = {3},
  Pages                    = {283--299},
  Volume                   = {23},

  Doi                      = {10.1080/095006901750066529},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/095006901750066529},
  File                     = {/home/huub/Documents/Research/main/Sources/Ritchie2001a-Actions\_and\_discourses\_for\_transformative\_understanding\_in\_a\_middle\_school\_science\_class.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/095006901750066529}
}

@Book{Roberts1989a,
  Title                    = {{Serendipity: accidental discoveries in science}},
  Author                   = {Roberts, R.M.},
  Publisher                = {John Wiley \& Sons, Inc.},
  Year                     = {1989}
}

@Book{Rocard2007a,
  Title                    = {{Science education now: A renewed pedagogy for the future of Europe}},
  Author                   = {Rocard, Michel and Csermely, Peter and Jorde, Doris and Lenzen, Dieter and Walberg-Henriksson, Harriet and Valerie-Hemmo},
  Publisher                = {European Commission},
  Year                     = {2007},

  Address                  = {Brussels},

  File                     = {/home/huub/Documents/Research/main/Sources/Rocard2007a-Science\_educaton\_now-A\_renewed\_pedagogy\_for\_the\_future\_of\_Europe.pdf},
  Keywords                 = {science},
  Url                      = {http://ec.europa.eu/research/science-society/document_library/pdf_06/report-rocard-on-science-education_en.pdf}
}

@InProceedings{Rogers2003a,
  Title                    = {{Improving Children's Understanding of Formalisms Through Interacting with Multimedia}},
  Author                   = {Rogers, Y. and Scaife, M. and Aldrich, F. and Price, S.},
  Booktitle                = {{COGNITIVE SCIENCE RESEARCH PAPER-UNIVERSITY OF SUSSEX CSRP}},
  Year                     = {2003}
}

@Article{Rojas2003a,
  Title                    = {{Scaffolding the development of effective collaboration and learning}},
  Author                   = {Rojas-Drummond, Sylvia and Mercer, Neil},
  Journal                  = {International Journal of Educational Research},
  Year                     = {2003},
  Number                   = {1{\^a}€``2},
  Pages                    = {99--111},
  Volume                   = {39},

  Doi                      = {10.1016/S0883-0355(03)00075-2},
  File                     = {/home/huub/Documents/Research/main/Sources/Rojas2003a-Scaffolding\_the\_development\_of\_effective\_collaboration\_and\_learning.pdf},
  ISSN                     = {0883-0355},
  Url                      = {http://www.sciencedirect.com/science/article/pii/S0883035503000752}
}

@PhdThesis{Roorda2012a,
  Title                    = {{Ontwikkeling in verandering}},
  Author                   = {Roorda, Gerrit},
  Year                     = {2012},

  File                     = {/home/huub/Documents/Research/main/Sources/Roorda2012a-Ontwikkeling\_in\_verandering.pdf},
  Institution              = {Rijksuniversiteit Groningen},
  Subtitle                 = {Ontwikkeling van wiskundige bekwaamheid van leerlingen met betrekking tot het concept afgeleide},
  Url                      = {http://www.rug.nl/staff/g.roorda/proefschriftGerritRoorda.pdf}
}

@Article{Rose2008a,
  Title                    = {{Analyzing collaborative learning processes automatically: Exploiting the advances of computational linguistics in computer-supported collaborative learning}},
  Author                   = {Ros{\'e}, C. and Wang, Y.C. and Cui, Y. and Arguello, J. and Stegmann, K. and Weinberger, A. and Fischer, F.},
  Journal                  = {International Journal of Computer-Supported Collaborative Learning},
  Year                     = {2008},
  Number                   = {3},
  Pages                    = {237--271},
  Volume                   = {3},

  File                     = {/home/huub/Documents/Research/main/Sources/Rose2008a-Analyzing\_collaborative\_learning\_processes\_automatically-Exploiting\_the\_advances\_of\_computational\_linguistics.pdf},
  Publisher                = {Springer}
}

@Article{Roschelle2000a,
  Title                    = {{SIMCALC: Accelerating Students' Engagement With the Mathematics of Change}},
  Author                   = {Roschelle, J. and Kaput, J. and Stroup, W.},
  Journal                  = {Innovations in science and mathematics education: advanced designs for technologies of learning},
  Year                     = {2000},
  Pages                    = {47--75},

  File                     = {/home/huub/Documents/Research/main/Sources/Roschelle2000a-SimCalc-Accelerating\_students\_engagement\_with\_the\_mathematics\_of\_change.pdf},
  ISBN                     = {080582846X},
  Keywords                 = {calculus; compound variable quantities; ict; microworld; middle school},
  Localfile                = {/home/huub/to-research/Sources/Roschelle2000a-SimCalc-Accelerating_students_engagement_with_the_mathematics_of_change.pdf},
  Publisher                = {Lawrence Erlbaum},
  Url                      = {http://ctl.sri.com/publications/downloads/SimCalc_accel_preprint.pdf}
}

@InCollection{Ross2007a,
  Title                    = {{Research designs}},
  Author                   = {Ross, Steven M. and Morrison, Gary R. and Hannafin, Robert D. and Young, Michael and van den Akker, Jand and Kuiper, Wilmad and Richey, Rita C. and Klein, James D.},
  Booktitle                = {{Handbook of Research for Educational Communications and Technology}},
  Year                     = {2007},
  Edition                  = {7},
  Editor                   = {Spector, J. Michael and Merrill, M. David and Merrienboer, Jeroen Van and Driscoll, Marcy P.},
  Pages                    = {715--761},

  Keywords                 = {design research}
}

@Article{Roth2010a,
  Title                    = {{Fullness of life as minimal unit: Science, technology, engineering, and mathematics (STEM) learning across the life span}},
  Author                   = {Roth, M. and Eijck, M.V.},
  Journal                  = {Science Education},
  Year                     = {2010},

  File                     = {/home/huub/Documents/Research/main/Sources/Roth2010a-Fullness\_of\_life\_as\_minimal\_unit-STEM\_learning\_acrosst\_the\_life\_span.pdf},
  Keywords                 = {science},
  Publisher                = {Wiley Online Library},
  Url                      = {http://onlinelibrary.wiley.com/doi/10.1002/sce.20401/full}
}

@Article{Roth2002a,
  Title                    = {{Reading graphs: Contributions to an integrative concept of literacy}},
  Author                   = {Roth, W.},
  Journal                  = {Journal of curriculum studies},
  Year                     = {2002},
  Number                   = {1},
  Pages                    = {1--24},
  Volume                   = {34},

  File                     = {/home/huub/Documents/Research/main/Sources/Roth2002a-Reading\_graphs-Contributions\_to\_an\_integrative\_concept\_of\_literacy.pdf},
  Keywords                 = {graph; interpret graph},
  Publisher                = {Routledge}
}

@Article{Roth2002b,
  Title                    = {{From thing to sign and ``natural object'': Toward a genetic phenomenology of graph interpretation}},
  Author                   = {Roth, W. and Bowen, G.M. and Masciotra, D.},
  Journal                  = {Science, Technology \& Human Values},
  Year                     = {2002},
  Number                   = {3},
  Pages                    = {327},
  Volume                   = {27},

  File                     = {/home/huub/Documents/Research/main/Sources/Roth2002b-From\_thing\_to\_sign\_and\_natural\_object.pdf},
  Keywords                 = {graph; interpret graph; higher education; science},
  Publisher                = {Sage Publications}
}

@Article{Roth1999a,
  Title                    = {{Differences in Graph-Related Practices between High School Biology Textbooks and Scientific Ecology Journals}},
  Author                   = {Roth, W. and Bowen, G. Michael and McGinn, Michelle K.},
  Journal                  = {Journal of Research in Science Teaching},
  Year                     = {1999},
  Number                   = {9},
  Pages                    = {977--1019},
  Volume                   = {36},

  File                     = {/home/huub/Documents/Research/main/Sources/Roth1999a-Differences\_in\_Graph-Related\_Practices\_between\_High\_School\_Biology\_Textbooks\_and\_Scientific\_Ecology\_Journals.pdf},
  Keywords                 = {graph; interpret graph; secondary education}
}

@Article{Roth2004a,
  Title                    = {{Interpreting unfamiliar graphs: A generative, activity theoretic model}},
  Author                   = {Roth, W. and Lee, Y.J.},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {2004},
  Number                   = {2},
  Pages                    = {265--290},
  Volume                   = {57},

  File                     = {/home/huub/Documents/Research/main/Sources/Roth2004a-Interpreting\_unfamiliar\_graphs-A\_generative\_activity\_theoretic\_model.pdf},
  Keywords                 = {graph; interpret graph; science},
  Publisher                = {Springer}
}

@Article{Roth1997a,
  Title                    = {{Graphing: Cognitive ability or practice?}},
  Author                   = {Roth, W. and McGinn, M.K.},
  Journal                  = {Science Education},
  Year                     = {1997},
  Number                   = {1},
  Pages                    = {91--106},
  Volume                   = {81},

  File                     = {/home/huub/Documents/Research/main/Sources/Roth1997a-Graphing-Cognitive\_ability\_or\_practice.pdf}
}

@Article{Rotherham2010a,
  Title                    = {{``21st-Century'' Skills: Not New, but a Worthy Challenge.}},
  Author                   = {Rotherham, A. and Willingham, D.},
  Journal                  = {American Educator},
  Year                     = {2010},
  Number                   = {1},
  Pages                    = {17--20},
  Volume                   = {34},

  File                     = {/home/huub/Documents/Research/main/Sources/Rotherham2010a-21st\_century\_skills-not\_new\_but\_a\_worthy\_challenge.pdf}
}

@TechReport{Ruddock2008a,
  Title                    = {{Comparison of the core primary curriculum in England to those of other high performing countries}},
  Author                   = {Ruddock, Graham and Sainsbury, Marian},
  Institution              = {National Foundation for Educational Research},
  Year                     = {2008},

  Organization             = {Department for Children, Schools and Families},
  Url                      = {http://files.eric.ed.gov/fulltext/ED502359.pdf}
}

@Book{Ryan2007a,
  Title                    = {{Children's Mathematics 4-15: Learning From Errors And Misconceptions: Learning from Errors and Misconceptions}},
  Author                   = {Ryan, J. and Williams, J.},
  Publisher                = {McGraw-Hill International},
  Year                     = {2007}
}

@Article{Saab2007a,
  Title                    = {{Supporting communication in a collaborative discovery learning environment: The effect of instruction}},
  Author                   = {Saab, N. and van Joolingen, W.R. and van Hout-Wolters, B.H.A.M.},
  Journal                  = {Instructional Science},
  Year                     = {2007},
  Number                   = {1},
  Pages                    = {73--98},
  Volume                   = {35},

  File                     = {/home/huub/Documents/Research/main/Sources/Saab2007a-Supporting\_communication\_in\_a\_collaborative\_discovery\_learning\_environment.pdf},
  Publisher                = {Springer}
}

@Article{Sabelli2006a,
  Title                    = {{Complexity, technology, science, and education}},
  Author                   = {Sabelli, N.H.},
  Journal                  = {Journal of the Learning Sciences},
  Year                     = {2006},
  Number                   = {1},
  Pages                    = {5},
  Volume                   = {15},

  File                     = {/home/huub/Documents/Research/main/Sources/Sabelli2006a-Complexity\_technology\_science\_and\_education.pdf},
  Keywords                 = {complexity},
  Publisher                = {Lawrence Erlbaum Associates, Inc.}
}

@InProceedings{Saldanha1998a,
  Title                    = {{Re-thinking co-variation from a quantitative perspective: Simultaneous continuous variation}},
  Author                   = {Saldanha, L. and Thompson, P.},
  Booktitle                = {{Proceedings of the Annual Meeting of the Psychology of Mathematics Education North America. Raleigh, NC}},
  Year                     = {1998},

  Address                  = {Columbus},
  Editor                   = {Berensen, S.B. and Dawkins, K.R. and Blanton, M. and Coulombe, W.N. and Kolb, J. and Norwood, K. and Stiff, L.},
  Pages                    = {298--303},
  Publisher                = {ERIC Clearinghouse for Science, Mathematics, and Environmental Education},

  File                     = {/home/huub/Documents/Research/main/Sources/Saldanha1998a-Re-thinking\_co-variation\_from\_a\_quantitative\_perspective.pdf},
  Keywords                 = {compound variable quantities; graph; secondary education; motion domain},
  Url                      = {http://pat-thompson.net/PDFversions/1998SimulConVar.pdf},
  Vol                      = {a}
}

@TechReport{Savelsbergh2008a,
  Title                    = {{Modelleren en computermodellen in de {\ss}-vakken. Advies aan de gezamenlijke {\ss}-vernieuwingscommissie}},
  Author                   = {Savelsbergh, Elwin and Drijvers, Paul and van de Giessen, Carel and Heck, Andr{\'e} and Hooyman, Kees and Kruger, Jenneke and Michels, Berenice and Seller, Frank and Westra, Ren{\'e}},
  Institution              = {afstemmingsgroep modelleren},
  Year                     = {2008},

  File                     = {/home/huub/Documents/Research/main/Sources/Savelsbergh2008a-Modelleren\_en\_computermodellen\_in\_de\_betavakken.pdf},
  Url                      = {http://www.nieuwenatuurkunde.nl/download/id/40/Modelleren_betavakken.pdf}
}

@Article{Sawyer2011a,
  Title                    = {{A call to action: The challenges of creative teaching and learning}},
  Author                   = {Sawyer, R Keith},
  Journal                  = {Luettu},
  Year                     = {2011},
  Note                     = {in press},
  Volume                   = {7},

  File                     = {/home/huub/Documents/Research/main/Sources/Sawyer2011a-A\_call\_to\_action-The\_challenges\_of\_creative\_teaching\_and\_learning.pdf},
  Journaltitle             = {Teachers College Record},
  Url                      = {http://www.artsci.wustl.edu/~ksawyer/PDFs/TCR.pdf}
}

@Article{Scaife1993a,
  Title                    = {{Datalogging: where are we now?}},
  Author                   = {Scaife, J.},
  Journal                  = {Physics education},
  Year                     = {1993},
  Pages                    = {83},
  Volume                   = {28},

  File                     = {/home/huub/Documents/Research/main/Sources/Scaife1993a-Datalogging-where\_are\_we\_now.pdf},
  Keywords                 = {mathematics; science; ict; sensor},
  Url                      = {http://iopscience.iop.org/0031-9120/28/2/003/pdf/0031-9120_28_2_003.pdf}
}

@Article{Scaife1996a,
  Title                    = {{External cognition: how do graphical representations work?}},
  Author                   = {Scaife, M. and Rogers, Y.},
  Journal                  = {Int. J. Human--Computer Studies},
  Year                     = {1996},
  Pages                    = {185--213},
  Volume                   = {45},

  File                     = {/home/huub/Documents/Research/main/Sources/Scaife1996a-External\_cognition-How\_do\_graphical\_representations\_work.pdf}
}

@TechReport{Schefe1993a,
  Title                    = {{Computationalism reconsidered connectionism and the use of computer science concepts in explanations of the mind}},
  Author                   = {Schefe, Peter},
  Year                     = {1993},

  File                     = {/home/huub/Documents/Research/main/Sources/Schefe1993a-Computationalism\_reconsidered-connectionism\_and\_the\_use\_of\_computer\_science\_concepts\_in\_the\_explanations\_of\_the\_mind.pdf},
  Keywords                 = {connectionism},
  Language                 = {eng},
  Series                   = {{Berichte des Departments Informatik der Universit{\"a}t Hamburg}},
  Url                      = {http://epub.sub.uni-hamburg.de/informatik/volltexte/2010/138/pdf/B_166_93.pdf},
  Vol                      = {166}
}

@TechReport{Schemmel2010a,
  Title                    = {{Medieval representations of change and their early Modern application}},
  Author                   = {Schemmel, M.},
  Year                     = {2010},

  File                     = {/home/huub/Documents/Research/main/Sources/Schemmel2010a-Medieval\_representations\_of\_change\_and\_their\_early\_modern\_application.PDF},
  Keywords                 = {history; science; mathematics; change},
  Url                      = {http://wwwneu.mpiwg-berlin.mpg.de/Preprints/P402.PDF}
}

@Article{Schliemann2003a,
  Title                    = {{Algebra in Elementary School.}},
  Author                   = {Schliemann, A. and Carraher, D. and Brizuela, B. and Earnest, D. and Goodrow, A. and Lara-Roth, S. and Peled, I.},
  Journal                  = {International Group for the Psychology of Mathematics Education},
  Year                     = {2003},
  Pages                    = {8},

  File                     = {/home/huub/Documents/Research/main/Sources/Schliemann2003a-Algebra\_in\_elementary\_school.pdf},
  Keywords                 = {primary education; algebra},
  Publisher                = {International Group for the Psychology of Mathematics Education. 35 Aandwind Street, Kirstenhof, Cape Town, 7945, South Africa. Tel:+ 27-21-715-3559; Fax:+ 27-88-021-715-3559; e-mail: info@ igpme. org; Web site: http://igpme. org},
  Url                      = {http://www.earlyalgebra.terc.edu/our_papers/2003/schlieman_etall_pme2003.pdf}
}

@InProceedings{Schnotz2002a,
  Title                    = {{Enabling, facilitating, and inhibiting effects in learning from animated pictures}},
  Author                   = {Schnotz, W.},
  Booktitle                = {{International Workshop on Dynamic Visualizations and Learning, Tubingen, Germany}},
  Year                     = {2002},

  File                     = {/home/huub/Documents/Research/main/Sources/Schnotz2002a-Enabling\_facilitating\_and\_inhibiting\_effects\_in\_learning\_from\_animated\_pictures.pdf}
}

@Article{Schnotz2003a,
  Title                    = {{Construction and interference in learning from multiple representation}},
  Author                   = {Schnotz, Wolfgang and Bannert, Maria},
  Journal                  = {Learning and instruction},
  Year                     = {2003},
  Number                   = {2},
  Pages                    = {141--156},
  Volume                   = {13},

  File                     = {/home/huub/Documents/Research/main/Sources/Schnotz2003a-Constructing\_and\_interference\_in\_learning\_from\_multiple\_representation.pdf}
}

@Article{Schnotz2005a,
  Title                    = {{Enabling, facilitating, and inhibiting effects of animations in multimedia learning: Why reduction of cognitive load can have negative results on learning}},
  Author                   = {Schnotz, Wolfgang and Rasch, Thorsten},
  Journal                  = {Educational Technology Research and Development},
  Year                     = {2005},
  Pages                    = {47--58},
  Volume                   = {53},

  Doi                      = {10.1007/BF02504797},
  File                     = {/home/huub/Documents/Research/main/Sources/Schnotz2005a-Enabling\_facilitating\_and\_inhibiting\_effects\_of\_animations\_in\_multimedia\_learning.pdf},
  ISSN                     = {1042-1629},
  Issue                    = {3},
  Language                 = {English},
  Url                      = {http://dx.doi.org/10.1007/BF02504797}
}

@Article{Schoenfeld2009a,
  Title                    = {{Bridging the cultures of educational research and design}},
  Author                   = {Schoenfeld, A.},
  Journal                  = {Educational designer},
  Year                     = {2009},
  Number                   = {2},
  Volume                   = {1},

  HowPublished             = {Retrieved from http://www.educationaldesigner.org/ed/volume1/issue2/article5},
  Keywords                 = {design research},
  Localfile                = {/home/huub/to-research/Sources/Schoenfeld2009a-Bridging_the_cultures_of_educational_research_and_design.pdf},
  Url                      = {http://www.educationaldesigner.org/ed/volume1/issue2/article5}
}

@Article{Schoor2012a,
  Title                    = {{Exploring regulatory processes during a computer-supported collaborative learning task using process mining}},
  Author                   = {Schoor, C. and Bannert, M.},
  Journal                  = {Computers in Human Behavior},
  Year                     = {2012},

  File                     = {/home/huub/Documents/Research/main/Sources/Schoor2012a-Exploring\_regulatory\_processes\_during\_a\_computer-supported\_collaborative\_learning\_task\_using\_process\_mining.pdf},
  Paegs                    = {1321--1331},
  Publisher                = {Elsevier}
}

@Article{Schubring2007a,
  Title                    = {{Der Aufbruch zum {\glqq}funktionalen Denken``: Geschichte des Mathematikunterrichts im Kaiserreich}},
  Author                   = {Schubring, Gert},
  Journal                  = {NTM International Journal of History and Ethics of Natural Sciences, Technology and Medicine},
  Year                     = {2007},
  Number                   = {1},
  Pages                    = {1--17},
  Volume                   = {15},

  Doi                      = {10.1007/s00048-006-0260-8},
  File                     = {/home/huub/Documents/Research/main/Sources/Schubring2007a-Der\_Aufbruch\_zum\_funktionalen\_Denken.pdf},
  ISSN                     = {0036-6978},
  Language                 = {English},
  Publisher                = {Birkh{\"a}user-Verlag},
  Url                      = {http://dx.doi.org/10.1007/s00048-006-0260-8}
}

@Book{Schubring2005a,
  Title                    = {{Conflicts between generalization, rigor, and intuition}},
  Author                   = {Schubring, Gert},
  Publisher                = {Springer},
  Year                     = {2005},

  Url                      = {http://users.uoa.gr/~spapast/TomeasDidaktikhs/Caychy/ConflictsBetweenGeneralizationRigorandIntuitionNumberConceptsUnderlyingtheDevelopmentofAnalysisin17th19thCenturySourcesandStudi.pdf}
}

@Article{Schunn2008a,
  Title                    = {{Engineering Educational Design}},
  Author                   = {Schunn, Christian},
  Journal                  = {Educational Designer},
  Year                     = {2008},
  Number                   = {1},
  Volume                   = {1},

  HowPublished             = {Retrieved from http://www.educationaldesigner.org/ed/volume1/issue1/article2},
  Localfile                = {/home/huub/to-research/Sources/Schunn2008a-Engineering_educational_design.pdf},
  Url                      = {http://www.educationaldesigner.org/ed/volume1/issue1/article2}
}

@Article{Schwarz1999a,
  Title                    = {{Prototypes: Brakes or levers in learning the function concept? The role of computer tools}},
  Author                   = {Schwarz, B.B. and Hershkowitz, R.},
  Journal                  = {Journal for Research in Mathematics Education},
  Year                     = {1999},
  Number                   = {4},
  Pages                    = {362--389},
  Volume                   = {30},

  File                     = {/home/huub/Documents/Research/main/Sources/Schwarz1999a-Prototypes-Brakes\_or\_levers\_in\_learning\_the\_function\_concept.pdf},
  Keywords                 = {function; secondary education},
  Publisher                = {JSTOR}
}

@Article{Schwarz2009a,
  Title                    = {{Developing preservice elementary teachers' knowledge and practices through modeling-centered scientific inquiry}},
  Author                   = {Schwarz, Christina},
  Journal                  = {Science Education},
  Year                     = {2009},
  Number                   = {4},
  Pages                    = {720--744},
  Volume                   = {93},

  File                     = {/home/huub/Documents/Research/main/Sources/Schwarz2009a-Developing\_preservice\_elementary\_teachers\_knowledge\_and\_practices\_through\_modeling-centered\_scientific\_inquiry.pdf}
}

@Article{Schwarz2005a,
  Title                    = {{Metamodeling knowledge: Developing students' understanding of scientific modeling}},
  Author                   = {Schwarz, C.V. and White, B.Y.},
  Journal                  = {Cognition and Instruction},
  Year                     = {2005},
  Number                   = {2},
  Pages                    = {165--205},
  Volume                   = {23},

  File                     = {/home/huub/Documents/Research/main/Sources/Schwarz2005a-Metamodeling\_knowledge-Developing\_students\_understanding\_of\_scientific\_modeling.pdf},
  Url                      = {http://www.cuip.net/~cac/nlu/tie512win10/articles/Metamodeling%20Knowledge.pdf}
}

@Article{Schwarz2009b,
  Title                    = {{Developing a learning progression for scientific modeling: Making scientific modeling accessible and meaningful for learners}},
  Author                   = {Schwarz, Christina V. and Reiser, Brian J. and Davis, E.. and Kenyon, Lisa and Ach{\'e}r, Andres and Fortus, David and Shwartz, Yael and Hug, Barbara and Krajcik, Joe},
  Journal                  = {Journal of Research in Science Teaching},
  Year                     = {2009},
  Number                   = {6},
  Pages                    = {632--654},
  Volume                   = {46},

  Doi                      = {10.1002/tea.20311},
  File                     = {/home/huub/Documents/Research/main/Sources/Schwarz2009b-Developing\_a\_learning\_progression\_for\_scientific\_modeling.pdf},
  ISSN                     = {1098-2736},
  Keywords                 = {scientific modeling; learning progression; scientific practice; student learning},
  Publisher                = {Wiley Subscription Services, Inc., A Wiley Company},
  Url                      = {http://dx.doi.org/10.1002/tea.20311}
}

@Article{ScienceGuide2008a,
  Title                    = {{Techniek in PO: veel werk aan de winkel}},
  Author                   = {ScienceGuide},
  Journal                  = {ScienceGuide},
  Year                     = {2008},

  Month                    = sep,
  Note                     = {Last viewed 12 March 2010},

  Keywords                 = {science; primary education},
  Url                      = {http://www.scienceguide.nl/200809/techniek-in-po-veel-werk-aan-de-winkel.aspx}
}

@InCollection{Goldman1991a,
  Title                    = {{A multimedia research tool for ethnographic investigations}},
  Author                   = {Segall, Ricki Goldman},
  Booktitle                = {{Constructionism}},
  Year                     = {1991},
  Editor                   = {Harel, Idit and Papert, Seymour},
  Pages                    = {467--497},

  File                     = {/home/huub/Documents/Research/main/Sources/Goldman1991a-A\_multimedia\_research\_tool\_for\_ethnographic\_investigations.pdf}
}

@Article{Selwyn2009a,
  Title                    = {{The digital native--myth and reality}},
  Author                   = {Selwyn, N.},
  Year                     = {2009},
  Number                   = {4},
  Pages                    = {364--379},
  Volume                   = {61},

  Booktitle                = {{Aslib Proceedings: New Information Perspectives}},
  File                     = {/home/huub/Documents/Research/main/Sources/Selwyn2009a-The\_digital\_native-myth\_and\_reality.pdf},
  Organization             = {Emerald Group Publishing Limited},
  Url                      = {https://comminfo.rutgers.edu/~tefko/Courses/Zadar/Readings/Selwyn%20dig%20natives,%20Aslib%20Proceedings%202009.pdf}
}

@Article{Selwyn2003a,
  Title                    = {{Why students do (and do not) make use of ICT in university}},
  Author                   = {Selwyn, N.},
  Year                     = {2003},

  Keywords                 = {higher education; ict},
  Publisher                = {Education-line},
  Url                      = {http://www.leeds.ac.uk/educol/documents/00003130.htm}
}

@Article{Sengupta2012b,
  Title                    = {{From Agents to Continuous Change via Aesthetics: Learning Mechanics with Visual Agent-based Computational Modeling}},
  Author                   = {Sengupta, P. and Farris, A.V. and Wright, M.},
  Journal                  = {Technology, Knowledge and Learning},
  Year                     = {2012},
  Pages                    = {1--20},

  File                     = {/home/huub/Documents/Research/main/Sources/Sengupta2012b-From\_agents\_to\_continuous\_change\_via\_aesthetics-Learning\_mechanics\_with\_visual\_agent-based\_computational\_modeling.pdf}
}

@InProceedings{Sengupta2012a,
  Title                    = {{Learning kinematics in elementary grades using agent-based computational modeling: a visual programming-based approach}},
  Author                   = {Sengupta, Pratim and Farris, Amy Voss},
  Booktitle                = {{Proceedings of the 11th International Conference on Interaction Design and Children}},
  Year                     = {2012},

  Address                  = {New York, NY, USA},
  Pages                    = {78--87},
  Publisher                = {ACM},
  Series                   = {{IDC '12}},

  Acmid                    = {2307106},
  Doi                      = {10.1145/2307096.2307106},
  File                     = {/home/huub/Documents/Research/main/Sources/Sengupta2012a-Learning\_kinematics\_in\_elementary\_grades\_using\_agent-based\_computational\_modeling-A\_visual\_programming-based\_approach.pdf},
  ISBN                     = {978-1-4503-1007-9},
  Keywords                 = {VIMAP; agent-based modeling; kinematics; physics; programming languages; science education; visual programming},
  Location                 = {Bremen, Germany},
  Numpages                 = {10},
  Url                      = {http://doi.acm.org/10.1145/2307096.2307106}
}

@InProceedings{Seufert2004a,
  Title                    = {{Supporting coherence formation in multimedia learning}},
  Author                   = {Seufert, Tina and Br{\"u}nken, Roland},
  Booktitle                = {{Instructional design for effective and enjoyable computer-supported learning. Proceedings of the first joint meeting of the EARLI SIGs Instructional Design and Learning and Instruction with Computers}},
  Year                     = {2004},
  Pages                    = {138--147},

  File                     = {/home/huub/Documents/Research/main/Sources/Seufert2004a-Supporting\_coherence\_formation\_in\_multimedia\_learning.pdf}
}

@Article{Sfard1994a,
  Title                    = {{Reification as the birth of metaphor}},
  Author                   = {Sfard, Anna},
  Journal                  = {For the learning of mathematics},
  Year                     = {1994},
  Number                   = {1},
  Pages                    = {44--55},
  Volume                   = {14},

  File                     = {/home/huub/Documents/Research/main/Sources/Sfard1994a-Reification\_as\_the\_birth\_of\_metaphor.pdf}
}

@Article{Sfard1991a,
  Title                    = {{On the dual nature of mathematical conceptions: Reflections on processes and objects as different sides of the same coin}},
  Author                   = {Sfard, A.},
  Journal                  = {Educational studies in mathematics},
  Year                     = {1991},
  Number                   = {1},
  Pages                    = {1--36},
  Volume                   = {22},

  File                     = {/home/huub/Documents/Research/main/Sources/Sfard1991a-On\_the\_dual\_nature\_of\_mathematical\_conceptions.pdf},
  Publisher                = {Springer}
}

@Article{Sfard1996a,
  Title                    = {{Just give me a computer and i will move the earth: Programming as a catalyst of a cultural revolution in the mathematics classroom}},
  Author                   = {Sfard, Anna and Leron, Uri},
  Journal                  = {International Journal of Computers for Mathematical Learning},
  Year                     = {1996},
  Note                     = {10.1007/BF00571078},
  Pages                    = {189--195},
  Volume                   = {1},

  File                     = {/home/huub/Documents/Research/main/Sources/Sfard1996a-Programming\_as\_a\_catalyst\_of\_a\_cultural\_revolution\_in\_the\_mathematics\_classroom.pdf},
  ISSN                     = {1382-3892},
  Issue                    = {2},
  Keyword                  = {Humanities, Social Sciences and Law},
  Keywords                 = {ict; mathematics; programming},
  Publisher                = {Springer Netherlands},
  Url                      = {http://dx.doi.org/10.1007/BF00571078}
}

@InProceedings{Sfard1994b,
  Title                    = {{Problems of reification: Representations and mathematical objects}},
  Author                   = {Sfard, A. and Thompson, P.},
  Booktitle                = {{Proceedings of the sixteenth annual meeting of the North American chapter of the international group for the psychology of mathematics education}},
  Year                     = {1994},
  Pages                    = {3--34},
  Volume                   = {1},

  File                     = {/home/huub/Documents/Research/main/Sources/Sfard1994b-Problems\_of\_reification-Representations\_and\_mathematical\_objects.pdf}
}

@Article{Shaffer1998a,
  Title                    = {{Mathematics and virtual culture: An evolutionary perspective on technology and mathematics education}},
  Author                   = {Shaffer, D.W. and Kaput, J.},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {1998},
  Number                   = {2},
  Pages                    = {97--119},
  Volume                   = {37},

  File                     = {/home/huub/Documents/Research/main/Sources/Shaffer1998a-Mathematics\_and\_virtual\_culture.pdf},
  Keywords                 = {theory; ict; representation; mathematics}
}

@Article{Shah2002a,
  Title                    = {{Review of Graph Comprehension Research: Implications for Instruction}},
  Author                   = {Shah, Priti and Hoeffner, James},
  Journal                  = {Educational Psychology Review},
  Year                     = {2002},
  Number                   = {1},
  Pages                    = {47--69},
  Volume                   = {14},

  Doi                      = {10.1023/A:1013180410169},
  File                     = {/home/huub/Documents/Research/main/Sources/Shah2002a-Review\_of\_graph\_comprehension\_research-implications\_for\_instruction.pdf},
  ISSN                     = {1040-726X},
  Keywords                 = {graphs; graphical displays; graph comprehension; science education; graphical literacy},
  Language                 = {English},
  Publisher                = {Kluwer Academic Publishers-Plenum Publishers},
  Url                      = {http://dx.doi.org/10.1023/A%3A1013180410169}
}

@Article{Shavelson2003a,
  Title                    = {{On the science of education design studies}},
  Author                   = {Shavelson, R.J. and Phillips, DC and Towne, L. and Feuer, M.J.},
  Journal                  = {Educational Researcher},
  Year                     = {2003},
  Number                   = {1},
  Pages                    = {25--28},
  Volume                   = {32},

  File                     = {/home/huub/Documents/Research/main/Sources/Shavelson2003a-On\_the\_science\_of\_education\_design\_studies.pdf},
  Keywords                 = {design research},
  Url                      = {http://www.stanford.edu/dept/SUSE/SEAL/Reports_Papers/methods_papers/On%20the%20Science%20of%20Ed%20Design%20Studies_ER.pdf}
}

@Article{Sherin2000a,
  Title                    = {{How students invent representations of motion. A genetic account}},
  Author                   = {Sherin, Bruce L.},
  Journal                  = {Journal of Mathematical Behavior},
  Year                     = {2000},
  Pages                    = {399--441},
  Volume                   = {19},

  File                     = {/home/huub/Documents/Research/main/Sources/Sherin2000a-How\_students\_invent\_representations\_of\_motion.pdf},
  Keywords                 = {motion domain}
}

@Article{Shulman1986a,
  Title                    = {{Those who understand: Knowledge growth in teaching}},
  Author                   = {Shulman, Lee S},
  Journal                  = {Educational researcher},
  Year                     = {1986},
  Number                   = {2},
  Pages                    = {4--14},
  Volume                   = {15},

  File                     = {/home/huub/Documents/Research/main/Sources/Shulman1986a-Those\_who\_understand-knowledge\_growth\_in\_teaching.pdf}
}

@Article{Simon2006a,
  Title                    = {{Key Developmental Understandings in Mathematics: A Direction for Investigating and Establishing Learning Goals}},
  Author                   = {Simon, Martin A.},
  Journal                  = {Mathematical Thinking and Learning},
  Year                     = {2006},
  Number                   = {4},
  Pages                    = {359--371},
  Volume                   = {8},

  Doi                      = {10.1207/s15327833mtl0804_1},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1207/s15327833mtl0804\_1},
  File                     = {/home/huub/Documents/Research/main/Sources/Simon2006a-Key\_developmental\_understanding\_in\_mathematics-learning\_goals.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1207/s15327833mtl0804_1}
}

@Article{Simon1995a,
  Title                    = {{Reconstructing Mathematics Pedagogy from a Constructivist Perspective}},
  Author                   = {Simon, Martin A.},
  Journal                  = {Journal for Research in Mathematics Education},
  Year                     = {1995},
  Number                   = {2},
  Pages                    = {114--145},
  Volume                   = {26},

  File                     = {/home/huub/Documents/Research/main/Sources/Simon1995a-Reconstructing\_Mathematics\_Pedagogy\_from\_a\_Constructivist\_Perspective.pdf},
  Keywords                 = {constructivism; teaching experiment; mathematics},
  Url                      = {http://www.jstor.org/stable/749205}
}

@Article{Simon2004a,
  Title                    = {{Explicating the Role of Mathematical Tasks in Conceptual Learning: An Elaboration of the Hypothetical Learning Trajectory}},
  Author                   = {Simon, Martin A. and Tzur, Ron},
  Journal                  = {Mathematical Thinking and Learning},
  Year                     = {2004},
  Number                   = {2},
  Pages                    = {91--104},
  Volume                   = {6},

  Doi                      = {10.1207/s15327833mtl0602_2},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1207/s15327833mtl0602\_2},
  File                     = {/home/huub/Documents/Research/main/Sources/Simon2004a-Explicating\_the\_role\_of\_mathematics\_tasks\_in\_conceptual\_learning-an\_elaboration\_of\_the\_hypothetical\_learning\_theory.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1207/s15327833mtl0602_2}
}

@InCollection{Slavin2003a,
  Title                    = {{Cooperative Learning and Achievement: Theory and Research}},
  Author                   = {Slavin, Robert E. and Hurley, Eric A. and Chamberlain, Anne},
  Booktitle                = {{Handbook of Psychology. Educational Psychology}},
  Publisher                = {John Wiley \& Sons, Inc.},
  Year                     = {2003},
  Editor                   = {Reynolds, William M. and Miller, Gloria E.},
  Pages                    = {177--198},
  Volume                   = {7},

  Doi                      = {10.1002/0471264385.wei0709},
  File                     = {/home/huub/Documents/Research/main/Sources/Slavin2003a-Cooperative\_learning\_and\_achievement-Theory\_and\_research.pdf},
  ISBN                     = {9780471264385},
  Url                      = {http://dx.doi.org/10.1002/0471264385.wei0709}
}

@Electronic{Tule2009a,
  Title                    = {{TULE inhouden en activiteiten}},
  Author                   = {SLO},
  Url                      = {http://tule.slo.nl},
  Year                     = {2009},

  Comment                  = {TULE: Tussendoelen \& leerlijnen},
  Keywords                 = {primary education}
}

@Electronic{SLO2006a,
  Title                    = {{Herziene kerndoelen basisonderwijs}},
  Author                   = {SLO},
  Organization             = {SLO},
  Url                      = {http://www.slo.nl/primair/kerndoelen/Kerndoelen.doc/download},
  Year                     = {2006},

  Keywords                 = {primary education}
}

@Article{Smaling2003a,
  Title                    = {{Inductive, analogical, and communicative generalization}},
  Author                   = {Smaling, A.},
  Journal                  = {International Journal of Qualitative Methods},
  Year                     = {2003},
  Number                   = {1},
  Pages                    = {52--67},
  Volume                   = {2},

  File                     = {/home/huub/Documents/Research/main/Sources/Smaling2003a-Inductive\_analogical\_and\_communicative\_generalization.pdf},
  Keywords                 = {theory; generalization},
  Url                      = {http://www.ualberta.ca/~iiqm/backissues/2\_1/pdf/smaling.pdf}
}

@Article{Smaling1992a,
  Title                    = {{Varieties of methodological intersubjectivity --- the relations with qualitative and quantitative research, and with objectivity}},
  Author                   = {Smaling, A.},
  Journal                  = {Quality and Quantity},
  Year                     = {1992},
  Number                   = {2},
  Pages                    = {169--180},
  Volume                   = {26},

  Doi                      = {10.1007/BF02273552},
  Localfile                = {/home/huub/Documents/Research/main/Sources/Smaling1992a-Varieties_of_methodological_intersubjectivity.pdf},
  Publisher                = {Kluwer Academic Publishers},
  Url                      = {http://dx.doi.org/10.1007/BF02273552}
}

@Article{Smaling1990a,
  Title                    = {{Enige aspecten van kwalitatief onderzoek en het klinisch interview (Some aspects of qualitative research and the clinical interview)}},
  Author                   = {Smaling, A.},
  Journal                  = {Tijdschrift voor nascholing en onderzoek van het reken-wiskundeonderwijs},
  Year                     = {1990},
  Number                   = {8},
  Pages                    = {4--10},
  Volume                   = {3},

  Localfile                = {/home/huub/Documents/Research/main/Sources/Smaling1990a-Enige_aspecten_van_kwalitatief_onderzoek_en_het_klinisch_interview.pdf}
}

@Article{Smit2012a,
  Title                    = {{A conceptualisation of whole-class scaffolding}},
  Author                   = {Smit, J. and {AA van Eerde}, H. and Bakker, A.},
  Journal                  = {British Educational Research Journal},
  Year                     = {2012},

  Doi                      = {10.1002/berj.3007},
  File                     = {/home/huub/Documents/Research/main/Sources/Smit2012a-A\_conceptualisation\_of\_whole-class\_scaffolding.pdf}
}

@InCollection{Smith2007a,
  Title                    = {{Quantitative reasoning and the development of algebraic reasoning}},
  Author                   = {Smith, J. and Thompson, P.},
  Booktitle                = {{Algebra in the early grades}},
  Publisher                = {Erlbaum},
  Year                     = {2007},
  Editor                   = {Kaput, J. and Carraher, D.W. and Blanton, M.L.},
  Pages                    = {95--132},

  Adddress                 = {new York},
  File                     = {/home/huub/Documents/Research/main/Sources/Smith2007a-Quantitative\_reasoning\_and\_the\_development\_of\_algebraic\_reasoning.pdf},
  Keywords                 = {primary education; algebra},
  Url                      = {http://www.pat-thompson.net/PDFversions/2006SmithThompsonEarlyAlg.pdf}
}

@Article{Smith1961a,
  Title                    = {{Some uses of graphing before Descartes}},
  Author                   = {Smith, Thomas M.},
  Journal                  = {The Mathematics Teacher},
  Year                     = {1961},
  Number                   = {7},
  Pages                    = {pp. 565--567},
  Volume                   = {54},

  File                     = {/home/huub/Documents/Research/main/Sources/Smith1961a-Some\_uses\_of\_graphing\_before\_Descartes.pdf},
  Language                 = {English},
  Url                      = {http://www.jstor.org/stable/27956478}
}

@Article{Soloway1993a,
  Title                    = {{Should we teach students to program?}},
  Author                   = {Soloway, E.},
  Journal                  = {Communications of the ACM},
  Year                     = {1993},
  Number                   = {10},
  Pages                    = {21--24},
  Volume                   = {36},

  File                     = {/home/huub/Documents/Research/main/Sources/Soloway1993a-Should\_we\_teach\_students\_to\_program.pdf},
  Keywords                 = {ict; programming}
}

@Article{Songer2012a,
  Title                    = {{Guiding explanation construction by children at the entry points of learning progressions}},
  Author                   = {Songer, N.B. and Gotwals, A.W.},
  Journal                  = {Journal of Research in Science Teaching},
  Year                     = {2012},
  Pages                    = {141--165},
  Volume                   = {49},

  File                     = {/home/huub/Documents/Research/main/Sources/Songer2012a-Guiding\_explanation\_construction\_bij\_children\_at\_the\_entry\_points\_of\_learning\_progresstions.pdf}
}

@Article{Speiser1997a,
  Title                    = {{Performing algebra: Emergent discourse in a fifth-grade classroom}},
  Author                   = {Speiser, Bob and Walter, Chuck},
  Journal                  = {The Journal of Mathematical Behavior},
  Year                     = {1997},
  Number                   = {1},
  Pages                    = {39--49},
  Volume                   = {16},

  Doi                      = {10.1016/S0732-3123(97)90006-7},
  File                     = {/home/huub/Documents/Research/main/Sources/Speiser1997a-Performing\_algebra-Emergent\_discourse\_in\_a\_fifth-grade\_classroom.pdf},
  Keywords                 = {primary education; algebra},
  Url                      = {http://www.sciencedirect.com/science/article/B6W5B-46384DF-6/2/07201e2238888233c66a8dbc5ec533ad}
}

@Article{Speiser1996a,
  Title                    = {{Second catwalk: Narrative, context, and embodiment}},
  Author                   = {Speiser, Bob and Walter, Chuck},
  Journal                  = {The Journal of Mathematical Behavior},
  Year                     = {1996},
  Number                   = {4},
  Pages                    = {351--371},
  Volume                   = {15},

  Doi                      = {10.1016/S0732-3123(96)90021-8},
  File                     = {/home/huub/Documents/Research/main/Sources/Speiser1996a-Second\_catwalk-Narrative\_context\_and\_embodiment.pdf},
  Keywords                 = {calculus; graph; motion domain},
  Url                      = {http://www.sciencedirect.com/science/article/B6W5B-473V24N-D/2/9e4cf21e3743d61e5f06fd630437a260}
}

@Article{Speiser1994a,
  Title                    = {{Catwalk: First-semester calculus}},
  Author                   = {Speiser, Bob and Walter, Chuck},
  Journal                  = {The Journal of Mathematical Behavior},
  Year                     = {1994},
  Number                   = {2},
  Pages                    = {135--152},
  Volume                   = {13},

  Doi                      = {10.1016/0732-3123(94)90018-3},
  File                     = {/home/huub/Documents/Research/main/Sources/Speiser1994a-Catwalk-First-semester\_calculus.pdf},
  Keywords                 = {calculus; higher education; motion domain; instantaneous speed; graph},
  Url                      = {http://www.sciencedirect.com/science/article/B6W5B-466DT5W-3/2/82e5b5a0aaa2214d7e3019d8f4f5c80f}
}

@Article{Speiser2003a,
  Title                    = {{Representing motion: An experiment in learning}},
  Author                   = {Speiser, B. and Walter, C. and Maher, C.A.},
  Journal                  = {Journal of Mathematical Behavior},
  Year                     = {2003},
  Number                   = {1},
  Pages                    = {1--35},
  Volume                   = {22},

  File                     = {/home/huub/Documents/Research/main/Sources/Speiser2003a-Representing\_motion-an\_experiment\_in\_learning.pdf},
  Keywords                 = {motion domain; secondary education; instantaneous speed},
  Publisher                = {Elsevier}
}

@Article{Sriraman2010a,
  Title                    = {{Surveying theories and philosophies of mathematics education}},
  Author                   = {Sriraman, B. and English, L.},
  Journal                  = {Advances in Mathematics Education},
  Year                     = {2010},
  Pages                    = {7--32},

  File                     = {/home/huub/Documents/Research/main/Sources/Sriraman2010a-Surveying\_theories\_and\_philosophies\_of\_mathematics\_education.pdf},
  Keywords                 = {mathematics; theory; constructivism},
  Publisher                = {Springer}
}

@Article{Sriraman2005a,
  Title                    = {{Theories of Mathematics Education: A global survey of theoretical frameworks/trends in mathematics education research}},
  Author                   = {Sriraman, Bharath and English, Lyn},
  Journal                  = {ZDM},
  Year                     = {2005},
  Note                     = {10.1007/BF02655853},
  Pages                    = {450--456},
  Volume                   = {37},

  Affiliation              = {The University of Montana Dept. Of Mathematical Sciences 59812 Missoula MT USA},
  File                     = {/home/huub/Documents/Research/main/Sources/Sriraman2005a-Theories\_of\_mathematics\_education-A\_global\_survey.pdf},
  ISSN                     = {1863-9690},
  Issue                    = {6},
  Keyword                  = {Mathematics},
  Keywords                 = {mathematics; theory; history},
  Publisher                = {Springer Berlin / Heidelberg},
  Url                      = {http://dx.doi.org/10.1007/BF02655853}
}

@Article{Stake1978a,
  Title                    = {{The case study method in social inquiry}},
  Author                   = {Stake, R.E.},
  Journal                  = {Educational Researcher},
  Year                     = {1978},
  Number                   = {2},
  Pages                    = {5--8},
  Volume                   = {7},

  File                     = {/home/huub/Documents/Research/main/Sources/Stake1978a-The\_case\_study\_method\_in\_social\_inquiry.pdf},
  Keywords                 = {case study},
  Url                      = {http://education.illinois.edu/CIRCE/Publications/1978\_Stake.pdf}
}

@InCollection{Steffe1991b,
  Title                    = {{The Constructivist Teaching Experiment: Illustrations and Implications}},
  Author                   = {Steffe, L.},
  Booktitle                = {{Radical Constructivism in Mathematics Education}},
  Publisher                = {Springer Netherlands},
  Year                     = {1991},
  Editor                   = {Bishop, A. and Glasersfeld, E.},
  Note                     = {10.1007/0-306-47201-5\_9},
  Pages                    = {177--194},
  Series                   = {{Mathematics Education Library}},
  Volume                   = {7},

  Affiliation              = {University of Georgia, Athens, GA},
  File                     = {/home/huub/Documents/Research/main/Sources/Steffe1991b-The\_constructivist\_teaching\_experiment.pdf},
  ISBN                     = {978-0-306-47201-5},
  Keyword                  = {Education},
  Keywords                 = {teaching experiment; constructivism; mathematics},
  Url                      = {http://dx.doi.org/10.1007/0-306-47201-5_9}
}

@Article{Steffe1991a,
  Title                    = {{Operations that generate quantity}},
  Author                   = {Steffe, L.},
  Journal                  = {Learning and Individual Differences},
  Year                     = {1991},
  Number                   = {1},
  Pages                    = {61--82},
  Volume                   = {3},

  Doi                      = {10.1016/1041-6080(91)90004-K},
  File                     = {/home/huub/Documents/Research/main/Sources/Steffe1991a-Operations\_that\_generate\_quantity.pdf},
  ISSN                     = {1041-6080},
  Keywords                 = {mathematics; piaget; quantitative},
  Url                      = {http://www.sciencedirect.com/science/article/B6W5P-466DSRJ-11/2/1aac67cd87d7376a10338e28070c6b33}
}

@InCollection{Steffe2000a,
  Title                    = {{Teaching experiment methodology: Underlying principles and essential elements}},
  Author                   = {Steffe, L. and Thompson, P.},
  Booktitle                = {{Research desing in mathematics and science education}},
  Year                     = {2000},
  Editor                   = {Lesh, R. and Kelly, A.},
  Pages                    = {267--306},

  File                     = {/home/huub/Documents/Research/main/Sources/Steffe2000a-Teaching\_experiment\_methodology-Underlying\_principles\_and\_essential\_elements.pdf},
  Journal                  = {Handbook of research design in mathematics and science education},
  Keywords                 = {teaching experiment},
  Url                      = {http://www.coe.tamu.edu/~rcapraro/Articles/Teaching%20Experiments/TchExp%20Methodology%20Underlying%20Principles%20and%20Essential%20Elements.pdf}
}

@Article{Steffe2000b,
  Title                    = {{Interaction or Intersubjectivity? A Reply to Lerman}},
  Author                   = {Steffe, L. and Thompson, P.},
  Journal                  = {Journal for Research in Mathematics Education},
  Year                     = {2000},
  Number                   = {2},
  Pages                    = {pp. 191--209},
  Volume                   = {31},

  Abstract                 = {Lerman, in his challenge to radical constructivism, presented Vygotsky as an irreconcilable opponent to Piaget's genetic epistemology and thus to von Glasersfeld's radical constructivism. We argue that Lerman's stance does not reflect von Glasersfeld's opinion of Vygotsky's work, nor does it reflect Vygotsky's opinion of Piaget's work. We question Lerman's interpretation of radical constructivism and explain how the ideas of interaction, intersubjectivity, and social goals make sense in it. We then establish compatibility between the analytic units in Vygotsky's and von Glasersfeld's models and contrast them with Lerman's analytic unit. Consequently, we question Lerman's interpretation of Vygotsky. Finally, we question Lerman's use of Vygotsky's work in mathematics education, and we contrast that use with how we use von Glasersfeld's radical constructivism.},
  File                     = {/home/huub/Documents/Research/main/Sources/Steffe2000b-Interaction\_or\_intersubjectivity-A\_reply\_to\_Lerman.pdf},
  ISSN                     = {00218251},
  Jstor_articletype        = {research-article},
  Jstor_formatteddate      = {Mar., 2000},
  Keywords                 = {theory; vygotsky; piaget; glasersfeld; constructivism},
  Language                 = {English},
  Publisher                = {National Council of Teachers of Mathematics},
  Url                      = {http://www.jstor.org/stable/749751}
}

@Article{Stegmann2012a,
  Title                    = {{Collaborative argumentation and cognitive elaboration in a computer-supported collaborative learning environment}},
  Author                   = {Stegmann, K. and Wecker, C. and Weinberger, A. and Fischer, F.},
  Journal                  = {Instructional Science},
  Year                     = {2012},
  Number                   = {2},
  Pages                    = {297--323},
  Volume                   = {40},

  File                     = {/home/huub/Documents/Research/main/Sources/Stegmann2012a-Collaborative\_argumentation\_and\_cognitive\_elaboration\_in\_a\_computer-supported\_collaborative\_learning\_environment.pdf}
}

@Article{Stein1990a,
  Title                    = {{Subject-matter knowledge and elementary instruction: A case from functions and graphing}},
  Author                   = {Stein, M.K. and Baxter, J.A. and Leinhardt, G.},
  Journal                  = {American Educational Research Journal},
  Year                     = {1990},
  Number                   = {4},
  Pages                    = {639},
  Volume                   = {27},

  File                     = {/home/huub/Documents/Research/main/Sources/Stein1990a-Subject-matter\_knowledge\_and\_elementary\_instruction-functions\_and\_graphing.pdf},
  Keywords                 = {mathematics; teacher; graph; function; primary education},
  Publisher                = {Sage Publications},
  Url                      = {https://www.msu.edu/user/mkennedy/TQQT/PDFs/SteinBL90.pdf}
}

@InCollection{Stephan2003a,
  Title                    = {{Chapter 2: Reconceptualizing Linear Measurement Studies: The Development of Three Monograph Themes}},
  Author                   = {Stephan, Michelle},
  Booktitle                = {{Supporting Students' Development of Measuring Conceptions: Analyzing Students' Learning in Social Context}},
  Year                     = {2003},
  Pages                    = {pp. 17--35},
  Series                   = {{Journal for Research in Mathematics Education. Monograph}},
  Volume                   = {12},

  File                     = {/home/huub/Documents/Research/main/Sources/Stephan2003a-Reconceptualizing\_linear\_measurement\_studies.pdf},
  Url                      = {http://www.jstor.org/stable/30037719}
}

@Article{Stephan2012a,
  Title                    = {{A Proposed Instructional Theory for Integer Addition and Subtraction}},
  Author                   = {Stephan, Michelle and Akyuz, Didem},
  Journal                  = {Journal for Research in Mathematics Education},
  Year                     = {2012},
  Number                   = {4},
  Pages                    = {428--464},
  Volume                   = {43},

  File                     = {/home/huub/Documents/Research/main/Sources/Stephan2012a-A\_proposed\_instructional\_theory\_for\_integer\_addition\_and\_subtraction.pdf}
}

@InCollection{Stephan2003b,
  Title                    = {{Chapter 3: The Methodological Approach to Classroom-Based Research}},
  Author                   = {Stephan, M. and Cobb, P.},
  Booktitle                = {{Journal for Research in Mathematics Education. Monograph}},
  Publisher                = {National Council of Teachers of Mathematics},
  Year                     = {2003},
  Pages                    = {pp. 36--50},
  Volume                   = {12},

  ISSN                     = {08839530},
  Language                 = {English},
  Localfile                = {/home/huub/Documents/Research/main/Sources/Stephan2003b-The_methodological_approach_to_classroom-based_research.pdf},
  Url                      = {http://www.jstor.org/stable/30037720}
}

@InCollection{Stephan2014a,
  Title                    = {{Guided Reinvention: What Is It and How Do Teachers Learn This Teaching Approach?}},
  Author                   = {Stephan, Michelle and Underwood-Gregg, Diana and Yackel, Erna},
  Booktitle                = {{Transforming Mathematics Instruction: Multiple Approaches and Practices}},
  Publisher                = {Springer},
  Year                     = {2014},
  Editor                   = {Li, Yeping and Silver, Edward A. and Li, Shiqi},
  Series                   = {{Advances in Mathematics Education}},

  Doi                      = {10.1007/978-3-319-04993-9_4},
  Localfile                = {/home/huub/Documents/Research/main/Sources/Stephan2014a-Guided_reinvention.pdf},
  Url                      = {http://dx.doi.org/10.1007/978-3-319-04993-9_4}
}

@Article{Stephens2005a,
  Title                    = {{Developing Students' Understandings of Variable}},
  Author                   = {Stephens, A.C.},
  Journal                  = {Mathematics Teaching in the Middle School},
  Year                     = {2005},
  Number                   = {2},
  Pages                    = {96},
  Volume                   = {11},

  File                     = {/home/huub/Documents/Research/main/Sources/Stephens2005a-Developing\_students\_understandings\_of\_variable.pdf},
  Keywords                 = {algebra; middle school},
  Publisher                = {NATIONAL COUNCIL OF TEACHERS OF MATHEMATICS},
  Url                      = {http://labweb.education.wisc.edu/knuth/taar/papers_rep_pub/MTMS_variable.pdf}
}

@Article{Stigler2009a,
  Title                    = {{Thoughts on Creating, Accumulating, and Utilizing Shareable Knowledge to Improve Teaching.}},
  Author                   = {Stigler, J. and Thompson, B.},
  Journal                  = {Elementary School Journal},
  Year                     = {2009},
  Number                   = {5},
  Pages                    = {16},
  Volume                   = {109},

  File                     = {/home/huub/Documents/Research/main/Sources/Stigler2009a-Thoughts\_on\_creating\_knowledge\_to\_improve\_teaching.pdf},
  Keywords                 = {theory; learning}
}

@Article{Stratford1997a,
  Title                    = {{A review of computer-based model research in precollege science classrooms}},
  Author                   = {Stratford, S.J.},
  Journal                  = {Journal of Computers in Mathematics and Science Teaching},
  Year                     = {1997},
  Number                   = {1},
  Pages                    = {3--23},
  Volume                   = {16},

  File                     = {/home/huub/Documents/Research/main/Sources/Stratford1997a-A\_review\_of\_computer-based\_model\_research.PDF},
  Keywords                 = {ict; modeling; simulation; secondary education}
}

@Article{Streefland1985a,
  Title                    = {{Wiskunde als activiteit en de realiteit als bron}},
  Author                   = {Streefland, L},
  Year                     = {1985},
  Number                   = {1},
  Pages                    = {60--67},
  Volume                   = {5},

  File                     = {/home/huub/Documents/Research/main/Sources/Streefland1985a-Wiskunde\_als\_activiteit\_en\_de\_realiteit\_als\_bron.pdf},
  Journaltitle             = {Nieuwe Wiskrant}
}

@Article{Streefland1981a,
  Title                    = {{Zoals eenvoudig valt in te zien}},
  Author                   = {Streefland, L},
  Journal                  = {Nieuwe Wiskrant},
  Year                     = {1981},
  Pages                    = {3--7},
  Volume                   = {1},

  File                     = {/home/huub/Documents/Research/main/Sources/Streefland1981a-Zoals\_eenvoudig\_valt\_in\_te\_zien.pdf},
  Url                      = {http://www.fi.uu.nl/wiskrant/artikelen/artikelen00-10/000/000_streefland.pdf}
}

@Article{Strijbos2004a,
  Title                    = {{Designing for interaction: Six steps to designing computer-supported group-based learning}},
  Author                   = {Strijbos, J.W. and Martens, R.L. and Jochems, W.M.G.},
  Journal                  = {Computers \& Education},
  Year                     = {2004},
  Number                   = {4},
  Pages                    = {403--424},
  Volume                   = {42},

  File                     = {/home/huub/Documents/Research/main/Sources/Strijbos2004a-Designing\_for\_interaction-Six\_steps\_to\_designing\_computer-supported\_group-based\_learning.pdf}
}

@Article{Strijbos2010a,
  Title                    = {{Emerging and scripted roles in computer-supported collaborative learning}},
  Author                   = {Strijbos, J.W. and Weinberger, A.},
  Journal                  = {Computers in Human Behavior},
  Year                     = {2010},
  Number                   = {4},
  Pages                    = {491--494},
  Volume                   = {26},

  File                     = {/home/huub/Documents/Research/main/Sources/Strijbos2010a-Emerging\_and\_scripted\_roles\_in\_computer-supported\_collaborative\_learning.pdf}
}

@Article{Stroup2005a,
  Title                    = {{Learning the basics with calculus}},
  Author                   = {Stroup, W.},
  Journal                  = {Journal of Computers in Mathematics and Science Teaching},
  Year                     = {2005},
  Number                   = {2},
  Pages                    = {179--196},
  Volume                   = {24},

  File                     = {/home/huub/Documents/Research/main/Sources/Stroup2005a-Learning\_the\_basics\_with\_calculus.pdf},
  Url                      = {https://uteach.utexas.edu/sites/default/files/Basics%20with%20Calculus.pdf}
}

@Article{Stroup2002a,
  Title                    = {{Understanding qualitative calculus: A structural synthesis of learning research}},
  Author                   = {Stroup, W.},
  Journal                  = {International Journal of Computers for Mathematical Learning},
  Year                     = {2002},
  Number                   = {2},
  Pages                    = {167--215},
  Volume                   = {7},

  File                     = {/home/huub/Documents/Research/main/Sources/Stroup2002a-Understanding\_qualitative\_calculus-A\_structural\_synthesis\_of\_learning\_research.pdf},
  Keywords                 = {calculus; qualitative; compound variable quantities; ict; graph},
  Publisher                = {Springer},
  Url                      = {http://www.springerlink.com/content/k211l7w34v628740/fulltext.pdf}
}

@Article{Stump2001a,
  Title                    = {{High School Precalculus Students' Understanding of Slope as Measure}},
  Author                   = {Stump, Sheryl L.},
  Journal                  = {School Science and Mathematics},
  Year                     = {2001},
  Number                   = {2},
  Pages                    = {81--89},
  Volume                   = {101},

  Doi                      = {10.1111/j.1949-8594.2001.tb18009.x},
  File                     = {/home/huub/Documents/Research/main/Sources/Stump2001a-High\_school\_precalculus\_students\_understanding\_of\_slope\_as\_measure.pdf},
  ISSN                     = {1949-8594},
  Publisher                = {Blackwell Publishing Ltd},
  Url                      = {http://dx.doi.org/10.1111/j.1949-8594.2001.tb18009.x}
}

@Article{Stylianou2011a,
  Title                    = {{An examination of middle school students{\rq} representation practices in mathematical problem solving through the lens of expert work: towards an organizing scheme}},
  Author                   = {Stylianou, DespinaA.},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {2011},
  Number                   = {3},
  Pages                    = {265--280},
  Volume                   = {76},

  Doi                      = {10.1007/s10649-010-9273-2},
  ISSN                     = {0013-1954},
  Keywords                 = {Representation; Mathematical processes},
  Language                 = {English},
  Publisher                = {Springer Netherlands},
  Url                      = {http://dx.doi.org/10.1007/s10649-010-9273-2}
}

@Article{Suppes1966a,
  Title                    = {{The Uses of Computers in Education.}},
  Author                   = {Suppes, P.},
  Journal                  = {Scientific American},
  Year                     = {1966},
  Number                   = {3},
  Pages                    = {206--220},
  Volume                   = {215},

  Url                      = {http://suppes-corpus.stanford.edu/articles/comped/67.pdf}
}

@Article{Sweller1998a,
  Title                    = {{Cognitive Architecture and Instructional Design}},
  Author                   = {Sweller, John and van Merrienboer, JeroenJ.G. and Paas, FredG.W.C.},
  Journal                  = {Educational Psychology Review},
  Year                     = {1998},
  Number                   = {3},
  Pages                    = {251--296},
  Volume                   = {10},

  Doi                      = {10.1023/A:1022193728205},
  File                     = {/home/huub/Documents/Research/main/Sources/Sweller1998a-Cognitive\_architecture\_and\_instructional\_design.pdf},
  ISSN                     = {1040-726X},
  Keywords                 = {cognition; instructional design; learning; problem solving},
  Language                 = {English},
  Publisher                = {Kluwer Academic Publishers-Plenum Publishers},
  Url                      = {http://dx.doi.org/10.1023/A%3A1022193728205}
}

@Article{Tacar,
  Title                    = {{What part of the concept of acceleration is difficult to understand: the mathematics, the physics, or both?}},
  Author                   = {Ta\c{s}ar, M.F.},
  Journal                  = {ZDM},
  Pages                    = {1--14},

  Publisher                = {Springer}
}

@InCollection{Tall1997a,
  Title                    = {{Functions and calculus}},
  Author                   = {Tall, D.},
  Booktitle                = {{International handbook of mathematics education}},
  Publisher                = {Kluwer, Dordrecht},
  Year                     = {1997},
  Editor                   = {Bishop, Alan J. and Clements, M.A. (Ken) and Keitel, Christine and Kilpatrick, Jeremy and Laborde, Colette},
  Pages                    = {289--325},

  File                     = {/home/huub/Documents/Research/main/Sources/Tall1997a-Functions\_and\_calculus.pdf},
  Keywords                 = {mathematics; calculus; function; limit},
  Url                      = {http://www.warwick.ac.uk/staff/David.Tall/pdfs/dot1997a-functions-calculus.pdf}
}

@InCollection{Tall1993b,
  Title                    = {{Interrelationships Between Mind and Computer: Processes, Images, Symbols}},
  Author                   = {Tall, D.},
  Booktitle                = {{Advanced Educational Technologies for Mathematics and Science}},
  Publisher                = {Springer Berlin Heidelberg},
  Year                     = {1993},
  Editor                   = {Ferguson, D.},
  Pages                    = {385--413},
  Series                   = {{NATO ASI Series}},
  Volume                   = {107},

  Doi                      = {10.1007/978-3-662-02938-1_14},
  File                     = {/home/huub/Documents/Research/main/Sources/Tall1993b-Interrelationships\_between\_mind\_and\_computer-processes\_images\_symbols.pdf},
  ISBN                     = {978-3-642-08152-1},
  Keywords                 = {mathematics education; cognitive psychology; learning theory; computers; calculus; trigonometry; algebra; differential equations; cybernetic generic organizers; STELLA; NEWTON},
  Language                 = {English},
  Url                      = {http://dx.doi.org/10.1007/978-3-662-02938-1_14}
}

@InCollection{Tall2012a,
  Title                    = {{The evolution of technology and the mathematics of change and variation}},
  Author                   = {Tall, D.},
  Editor                   = {Hegedus, Stephen and Roschelle, Jeremy},

  File                     = {/home/huub/Documents/Research/main/Sources/Tall2012a-The\_evolution\_of\_technology\_and\_the\_mathematics\_of\_change\_and\_variation.pdf},
  Pubstate                 = {in press}
}

@InCollection{Tall2013a,
  Title                    = {{The Evolution of Technology and the Mathematics of Change and Variation: Using Human Perceptions and Emotions to Make Sense of Powerful Ideas}},
  Author                   = {Tall, D.},
  Booktitle                = {{The SimCalc Vision and Contributions}},
  Publisher                = {Springer Netherlands},
  Year                     = {2013},
  Editor                   = {Hegedus, S. and Roschelle, J.},
  Pages                    = {449--461},
  Series                   = {{Advances in Mathematics Education}},

  Doi                      = {10.1007/978-94-007-5696-0_25},
  File                     = {/home/huub/Documents/Research/main/Sources/Tall2013a-The\_evolution\_of\_technology\_and\_the\_mathematics\_of\_change\_and\_variation.pdf},
  ISBN                     = {978-94-007-5695-3},
  Keywords                 = {Local straightness; iPad; Kaputian program; Pointwise continuity; Uniform continuity; Met-before; Continuous function; Differential function; Conceptual embodiment; Operational symbolism; Axiomatic formalism},
  Language                 = {English},
  Url                      = {http://dx.doi.org/10.1007/978-94-007-5696-0_25}
}

@InCollection{Tall1991a,
  Title                    = {{The Psychology of Advanced Mathematical Thinking}},
  Author                   = {Tall, D.},
  Booktitle                = {{Advanced Mathematical Thinking}},
  Publisher                = {Springer Netherlands},
  Year                     = {1991},
  Editor                   = {Tall, D.},
  Pages                    = {3--21},
  Series                   = {{Mathematics Education Library}},
  Volume                   = {11},

  Doi                      = {10.1007/0-306-47203-1_1},
  File                     = {/home/huub/Documents/Research/main/Sources/Tall1991a-The\_psychology\_of\_advanced\_mathematical\_thinking.pdf},
  ISBN                     = {978-0-7923-1456-1},
  Url                      = {http://dx.doi.org/10.1007/0-306-47203-1_1}
}

@Unpublished{Tall2010a,
  Title                    = {{A Sensible approach to the Calculus}},
  Author                   = {Tall, D.},
  Year                     = {2010},

  Booktitle                = {{Plenary at The National and International Meeting on the Teaching of Calculus}},
  File                     = {/home/huub/Documents/Research/main/Sources/Tall2010a-A\_Sensible\_approach\_to\_the\_calculus.pdf},
  Url                      = {http://homepages.warwick.ac.uk/staff/David.Tall/pdfs/dot2012x-sensible-calculus-for-publication.pdf}
}

@Article{Tall2009a,
  Title                    = {{Dynamic mathematics and the blending of knowledge structures in the calculus}},
  Author                   = {Tall, D.},
  Journal                  = {ZDM},
  Year                     = {2009},
  Number                   = {4},
  Pages                    = {481--492},
  Volume                   = {41},

  Doi                      = {10.1007/s11858-009-0192-6},
  File                     = {/home/huub/Documents/Research/main/Sources/Tall2009a-Dynamic\_mathematics\_and\_the\_blending\_of\_knowledge\_structures\_in\_the\_calculus.pdf},
  ISSN                     = {1863-9690},
  Language                 = {English},
  Publisher                = {Springer-Verlag},
  Url                      = {http://dx.doi.org/10.1007/s11858-009-0192-6}
}

@InProceedings{Tall2000a,
  Title                    = {{Technology and versatile thinking in mathematics}},
  Author                   = {Tall, D.},
  Booktitle                = {{Proceedings of TIME 2000 an International Conference on Technology in Mathematics Education}},
  Year                     = {2000},
  Pages                    = {33--50},

  File                     = {/home/huub/Documents/Research/main/Sources/Tall2000a-Technology\_and\_versatile\_thinking\_in\_mathematics.pdf},
  Url                      = {http://homepages.warwick.ac.uk/staff/David.Tall/pdfs/dot2000g-time2000.pdf}
}

@InProceedings{Tall1993a,
  Title                    = {{Students{\rq} difficulties in calculus}},
  Author                   = {Tall, D.},
  Booktitle                = {{Proceedings of Working Group 3 on Students{\rq} Difficulties in Calculus, ICME-7 1992, Qu{\'e}bec, Canada}},
  Year                     = {1993},
  Pages                    = {13--28},

  File                     = {/home/huub/Documents/Research/main/Sources/Tall1993a-Students\_difficulties\_in\_calculus.pdf},
  Keywords                 = {mathematics; calculus},
  Url                      = {http://www.warwick.ac.uk/staff/David.Tall/pdfs/dot1993k-calculus-wg3-icme.pdf}
}

@PhdThesis{Tall1986a,
  Title                    = {{Building and testing a cognitive approach to the calculus using interactive computer graphics}},
  Author                   = {Tall, D.},
  School                   = {University of Warwick},
  Year                     = {1986},

  File                     = {/home/huub/Documents/Research/main/Sources/Tall1986a-Building\_and\_testing\_a\_cognitive\_approach\_to\_the\_calculus\_using\_interactive\_computer\_graphics.pdf}
}

@Article{Tall1982a,
  Title                    = {{Elementary axioms and pictures for infinitesimal calculus}},
  Author                   = {Tall, D.},
  Journal                  = {Bulletin of the IMA},
  Year                     = {1982},
  Pages                    = {43--48},
  Volume                   = {18},

  File                     = {/home/huub/Documents/Research/main/Sources/Tall1982a-Elementary\_axioms\_and\_pictures\_for\_infinitesimal\_calculus.pdf}
}

@Article{Tall1981b,
  Title                    = {{Comments on the difficulty and validity of various approaches to the calculus}},
  Author                   = {Tall, D.},
  Journal                  = {For the Learning of mathematics},
  Year                     = {1981},
  Pages                    = {16--21},

  File                     = {/home/huub/Documents/Research/main/Sources/Tall1981b-Comments\_on\_the\_difficulty\_and\_validity\_of\_various\_approaches\_to\_the\_calculus.pdf}
}

@Article{Tall2001a,
  Title                    = {{Symbols and the bifurcation between procedural and conceptual thinking}},
  Author                   = {Tall, D. and Gray, E. and Ali, M. and Crowley, L. and DeMarois, P. and McGowen, M. and Pitta, D. and Pinto, M. and Thomas, M. and Yusof, Y.},
  Journal                  = {Canadian Journal of Science, Mathematics and Technology Education},
  Year                     = {2001},
  Number                   = {1},
  Pages                    = {81--104},
  Volume                   = {1},

  Doi                      = {10.1080/14926150109556452},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/14926150109556452},
  File                     = {/home/huub/Documents/Research/main/Sources/Tall2001a-Symbols\_and\_the\_bifurcation\_between\_procedural\_and\_conceptual\_thinking.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/14926150109556452}
}

@InCollection{Tall2008a,
  Title                    = {{Technology and calculus}},
  Author                   = {Tall, D. and Smith, D. and Piez, C.},
  Booktitle                = {{Research on Technology and the Teaching and Learning of Mathematics}},
  Year                     = {2008},
  Editor                   = {Heid, M. and Blume, G.},
  Pages                    = {207--258},
  Volume                   = {1},

  File                     = {/home/huub/Documents/Research/main/Sources/Tall2008a-Technology\_and\_calculus.pdf},
  Url                      = {http://homepages.warwick.ac.uk/staff/David.Tall/pdfs/dot2008f-piez-smith-tall-calculus.pdf}
}

@Article{Tall1999a,
  Title                    = {{What Is the Object of the Encapsulation of a Process?}},
  Author                   = {Tall, D. and Thomas, M. and Davis, G. and Gray, E. and Simpson, A.},
  Journal                  = {The Journal of Mathematical Behavior},
  Year                     = {1999},
  Number                   = {2},
  Pages                    = {223--241},
  Volume                   = {18},

  Doi                      = {10.1016/S0732-3123(99)00029-2},
  ISSN                     = {0732-3123},
  Url                      = {http://www.sciencedirect.com/science/article/pii/S0732312399000292}
}

@Article{Tall1981a,
  Title                    = {{Concept image and concept definition in mathematics with particular reference to limits and continuity}},
  Author                   = {Tall, D. and Vinner, S.},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {1981},
  Number                   = {2},
  Pages                    = {151--169},
  Volume                   = {12},

  Doi                      = {10.1007/BF00305619},
  File                     = {/home/huub/Documents/Research/main/Sources/Tall1981a-Concept\_image\_and\_concept\_definition\_in\_mathematics.pdf},
  ISSN                     = {0013-1954},
  Language                 = {English},
  Publisher                = {Kluwer Academic Publishers},
  Url                      = {http://dx.doi.org/10.1007/BF00305619}
}

@Article{Taylor2003a,
  Title                    = {{Algebra in the Early Years?}},
  Author                   = {Taylor-Cox, J.},
  Journal                  = {Young Children},
  Year                     = {2003},
  Pages                    = {14--21},
  Volume                   = {58},

  File                     = {/home/huub/Documents/Research/main/Sources/Taylor2003a-Algebra\_in\_the\_early\_years.pdf},
  Keywords                 = {algebra; primary education},
  Publisher                = {Citeseer},
  Url                      = {http://earlychildhoodconnections.com/documents/Algebra.pdf}
}

@Article{Teasley1995a,
  Title                    = {{The role of talk in children's peer collaborations.}},
  Author                   = {Teasley, S.D.},
  Journal                  = {Developmental Psychology},
  Year                     = {1995},
  Number                   = {2},
  Pages                    = {207},
  Volume                   = {31},

  File                     = {/home/huub/Documents/Research/main/Sources/Teasley1995a-The\_role\_of\_talk\_in\_childrens\_peer\_collaborations.pdf},
  Publisher                = {American Psychological Association}
}

@Article{Terwel2009a,
  Title                    = {{Are representations to be provided or generated in primary mathematics education? Effects on transfer}},
  Author                   = {Terwel, Jan and van Oers, Bert and van Dijk, Ivanka and van den Eeden, Pieter},
  Journal                  = {Educational Research and Evaluation},
  Year                     = {2009},
  Number                   = {1},
  Pages                    = {25--44},
  Volume                   = {15},

  Doi                      = {10.1080/13803610802481265},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/13803610802481265},
  File                     = {/home/huub/Documents/Research/main/Sources/Terwel2009a-Are\_representations\_to\_be\_provided\_or\_generated\_in\_primary\_mathematics\_education.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/13803610802481265}
}

@Article{Teuscher2010a,
  Title                    = {{Slope, Rate of Change, and Steepness: Do Students Understand These Concepts?.}},
  Author                   = {Teuscher, D. and Reys, R.E.},
  Journal                  = {Mathematics Teacher},
  Year                     = {2010},
  Number                   = {7},
  Pages                    = {6},
  Volume                   = {103},

  File                     = {/home/huub/Documents/Research/main/Sources/Teuscher2010a-Slope\_rate\_of\_change\_and\_steepness.pdf},
  Keywords                 = {compound variable quantities; secondary education; calculus; alternative domain},
  Publisher                = {National Council of Teachers of Mathematics. 1906 Association Drive, Reston, VA 20191-1502. Tel: 800-235-7566; Tel: 703-620-3702; Fax: 703-476-2970; e-mail: orders@ nctm. org; Web site: http://www. nctm. org/publications/},
  Url                      = {http://mail.ottawacatholicschools.ca/~Mark.Couturier@ottawacatholicschools.ca/FOV1-000670D7/Slope%20and%20rate%20of%20change.pdf?FCItemID=S0A0CB01E}
}

@Article{DBRC2003a,
  Title                    = {{Design-based research: An emerging paradigm for educational inquiry}},
  Author                   = {{The Design-Based Research Collective}},
  Journal                  = {Educational Researcher},
  Year                     = {2003},
  Number                   = {1},
  Pages                    = {5--8},
  Volume                   = {32},

  File                     = {/home/huub/Documents/Research/main/Sources/DBRC2003a-Design-based\_research-An\_emerging\_paradigm\_for\_educational\_inquiry.pdf},
  Keywords                 = {design research},
  Publisher                = {American Educational Research Association}
}

@InProceedings{Thomas2001a,
  Title                    = {{Representations as conceptual tool: Process and structural perspectives}},
  Author                   = {Thomas, Michael OJ and Hong, Ye Yoon},
  Booktitle                = {{PME CONFERENCE}},
  Year                     = {2001},
  Pages                    = {4--257},
  Volume                   = {4},

  File                     = {/home/huub/Documents/Research/main/Sources/Thomas2001a-Representations\_as\_conceptual\_tools-process\_and\_structural\_perspectives.pdf}
}

@InCollection{Thompson2002a,
  Title                    = {{Didactic objects and didactic models in radical constructivism}},
  Author                   = {Thompson, P.},
  Booktitle                = {{Symbolizing, modeling, and tool use in mathematics education}},
  Year                     = {2002},
  Editor                   = {Gravemeijer, K. and Lehrer, R. and van Oers, H. and Verschaffel, L.},
  Pages                    = {197--220},
  Volume                   = {30},

  File                     = {/home/huub/Documents/Research/main/Sources/Thompson2002a-Didactic\_objects\_anddidactic\_models\_in\_radical\_constructivism.pdf},
  Keywords                 = {mathematics; constructivism},
  Url                      = {http://pat-thompson.net/PDFversions/2002DidacticObjs.pdfke}
}

@InCollection{Thompson1994b,
  Title                    = {{The development of the concept of speed and its relationship to concepts of rate}},
  Author                   = {Thompson, P.},
  Booktitle                = {{The development of multiplicative reasoning in the learning of mathematics}},
  Publisher                = {SUNY Press},
  Year                     = {1994},

  Address                  = {Albany},
  Editor                   = {Harel, G. and Confrey, J.},
  Pages                    = {179--234},

  File                     = {/home/huub/Documents/Research/main/Sources/Thompson1994b-The\_development\_of\_the\_concept\_of\_cpeed\_and\_its\_relationship\_to\_concepts\_of\_rate.pdf},
  Keywords                 = {compound variable quantities; primary education; quantitative; rate; ratio; microworld; teaching experiment; ict; motion domain},
  Url                      = {http://pat-thompson.net/PDFversions/1994ConceptSpeedRate.pdf}
}

@InCollection{Thompson2011a,
  Title                    = {{Quantitative reasoning and mathematical modeling}},
  Author                   = {Thompson, P.},
  Booktitle                = {{New perspectives and directions for collaborative research in mathematics education}},
  Year                     = {2011},
  Editor                   = {Hatfield, L.L. and Chamberlain, S. and Belbase, S.},
  Pages                    = {33--57},

  File                     = {/home/huub/Documents/Research/main/Sources/Thompson2011a-Quantitative\_reasoning\_and\_mathematical\_modeling.pdf}
}

@InCollection{Thompson2012a,
  Title                    = {{Advances in research on quantitative reasoning}},
  Author                   = {Thompson, P.},
  Booktitle                = {{Quantitative reasoning and Mathematical Modeling: A Driver for STEM Integrated Education and Teaching in Context}},
  Year                     = {2012},
  Editor                   = {Mayes, R. and Bonillia, R. and Hatfield, L. L. and Belbase, S.},
  Pages                    = {143--148},

  File                     = {/home/huub/Documents/Research/main/Sources/Thompson2012a-Advances\_in\_research\_on\_quantitative\_reasoning.pdf},
  Url                      = {http://www.uwyo.edu/wisdome/_files/documents/thompson.pdf}
}

@InCollection{Thompson2013b,
  Title                    = {{In the absence of meaning{\ldots}}},
  Author                   = {Thompson, P.},
  Booktitle                = {{Vital directions for mathematics education research}},
  Year                     = {2013},
  Pages                    = {57--93},

  File                     = {/home/huub/Documents/Research/main/Sources/Thompson2013b-In\_the\_absence\_of\_meaning.pdf},
  Url                      = {http://pat-thompson.net/PDFversions/2013AbsenceMeaning.pdf}
}

@Conference{Thompson2008a,
  Title                    = {{Epistemology, ontology, and method: comments on Tiberghien's and Dreyfus' paper}},
  Author                   = {Thompson, P.},
  Year                     = {2008},

  File                     = {/home/huub/Documents/Research/main/Sources/Thompson2008a-Epistemology\_ontology\_and\_method-comments\_on\_tiberghiens\_and\_Dreyfus\_papers.pdf}
}

@InProceedings{Thompson2008b,
  Title                    = {{Conceptual analysis of mathematical ideas: Some spadework at the foundation of mathematics education}},
  Author                   = {Thompson, P.},
  Booktitle                = {{Proceedings of the annual meeting of the International Group for the Psychology of Mathematics Education}},
  Year                     = {2008},
  Pages                    = {45--64},
  Volume                   = {1},

  File                     = {/home/huub/Documents/Research/main/Sources/Thompson2008b-Conceptual\_analysis\_of\_mathematical\_ideas-Some\_spadework\_at\_the\_foundation\_of\_mathematics\_education.pdf},
  Url                      = {http://patthompson.net/PDFversions/2008ConceptualAnalysis.pdf}
}

@Article{Thompson1994c,
  Title                    = {{Images of rate and operational understanding of the fundamental theorem of calculus}},
  Author                   = {Thompson, P.},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {1994},
  Number                   = {2},
  Pages                    = {229--274},
  Volume                   = {26},

  File                     = {/home/huub/Documents/Research/main/Sources/Thompson1994c-Images\_of\_rate\_and\_operational\_understanding\_of\_calculus.pdf},
  Keywords                 = {rate; compound variable quantities; calculus; secondary education; instantaneous speed; motion domain; alternative domain}
}

@InCollection{Thompson1994d,
  Title                    = {{Students, functions, and the undergraduate curriculum}},
  Author                   = {Thompson, P.},
  Publisher                = {American Mathematical Society},
  Year                     = {1994},

  Address                  = {Providence},
  Pages                    = {21--44},
  Volume                   = {4},

  File                     = {/home/huub/Documents/Research/main/Sources/Thompson1994d-Students\_functions\_and\_the\_undergraduate\_curriculum.pdf},
  Journal                  = {Research in collegiate mathematics education, I: Issues in Mathematics Education},
  Keywords                 = {function; higher education},
  Url                      = {http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.100.3807&rep=rep1&type=pdf}
}

@Article{Thompson1993a,
  Title                    = {{Quantitative reasoning, complexity, and additive structures}},
  Author                   = {Thompson, P.},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {1993},
  Number                   = {3},
  Pages                    = {165--208},
  Volume                   = {25},

  File                     = {/home/huub/Documents/Research/main/Sources/Thompson1993a-Quantitative\_reasoning\_complexity\_and\_additive\_structures.pdf},
  Keywords                 = {primary education; mathematics},
  Publisher                = {Springer}
}

@InProceedings{Thompson1991a,
  Title                    = {{Getting ahead: with theories. I have a theory about this}},
  Author                   = {Thompson, P.},
  Booktitle                = {{Proceedings of the Annual Meeting of the North American Chapter, International Group for the Psychology of Mathematics Education: Plenary papers}},
  Year                     = {1991},
  Pages                    = {240--245},

  File                     = {/home/huub/Documents/Research/main/Sources/Thompson1991a-Getting\_ahead-With\_theories.pdf},
  Keywords                 = {theory; mathematics}
}

@Article{Thompson2013a,
  Title                    = {{A Conceptual Approach to Calculus Made Possible by Technology}},
  Author                   = {Thompson, P. and Byerley, C. and Hatfield, N.},
  Journal                  = {Computers in the Schools},
  Year                     = {2013},
  Number                   = {1-2},
  Pages                    = {124--147},
  Volume                   = {30},

  Doi                      = {10.1080/07380569.2013.768941},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/07380569.2013.768941},
  File                     = {/home/huub/Documents/Research/main/Sources/Thompson2013a-A\_conceptual\_approach\_to\_calculus\_made\_possible\_by\_technology.pdf},
  Keywords                 = {filling glasses; available},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/07380569.2013.768941}
}

@Article{Thompson1996a,
  Title                    = {{Talking about rates conceptually, part II: mathematical knowledge for teaching}},
  Author                   = {Thompson, P. and Thompson, A.},
  Journal                  = {Journal for Research in Mathematics Education},
  Year                     = {1996},
  Number                   = {1},
  Pages                    = {2--24},
  Volume                   = {27},

  File                     = {/home/huub/Documents/Research/main/Sources/Thompson1996a-Talking\_about\_rates\_conceptually\_part\_II-Mathematical\_knowledge\_for\_teaching.pdf},
  Keywords                 = {rate; teacher; instantaneous speed; compound variable quantities; primary education; middle school}
}

@Article{Thompson1994a,
  Title                    = {{Talking about rates conceptually, part I: a teacher's struggle}},
  Author                   = {Thompson, P. and Thompson, A.},
  Journal                  = {Journal for Research in Mathematics Education},
  Year                     = {1994},
  Number                   = {3},
  Pages                    = {279--303},
  Volume                   = {25},

  File                     = {/home/huub/Documents/Research/main/Sources/Thompson1994a-Talking\_about\_rates\_conceptually\_part\_I-A-Techers\_struggle.pdf},
  Keywords                 = {rate; teacher; instantaneous speed; compound variable quantities; primary education; middle school}
}

@Article{Tilling1975a,
  Title                    = {{Early Experimental Graphs}},
  Author                   = {Tilling, Laura},
  Journal                  = {The British Journal for the History of Science},
  Year                     = {1975},
  Number                   = {3},
  Pages                    = {pp. 193--213},
  Volume                   = {8},

  File                     = {/home/huub/Documents/Research/main/Sources/Tilling1975a-Early\_experimental\_graphs.pdf},
  Url                      = {http://www.jstor.org/stable/4025556}
}

@Electronic{Tinker1999a,
  Title                    = {{New technology bumps into an old curriculum}},
  Author                   = {Tinker, Robert},
  Note                     = {Link is dead; access via: http://web.archive.org/web/20010105162100/http://www.concord.org/library/1999winter/newtechnology.html},
  Url                      = {http://www.concord.org/library/1999winter/newtechnology.html},
  Year                     = {1999},

  File                     = {/home/huub/Documents/Research/main/Sources/:Tinker1999a-New\_technology\_bumps\_into\_an\_old\_curriculum.htm},
  Keywords                 = {ict}
}

@Article{Traianou2006a,
  Title                    = {{Teachers' Adequacy of Subject Knowledge in Primary Science: Assessing constructivist approaches from a sociocultural perspective}},
  Author                   = {Traianou, Anna},
  Journal                  = {International Journal of Science Education},
  Year                     = {2006},
  Number                   = {8},
  Pages                    = {827--842},
  Volume                   = {28},

  Doi                      = {10.1080/09500690500404409},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/09500690500404409},
  File                     = {/home/huub/Documents/Research/main/Sources/Traianou2006a-Teachers\_adequacy\_of\_subject\_knowledge\_in\_primary\_science-assessing\_constructivist\_approaches\_from\_a\_sociocultural\_perspective.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/09500690500404409}
}

@Article{Treffers2005a,
  Title                    = {{De (on) navolgbare Freudenthal}},
  Author                   = {Treffers, A.},
  Year                     = {2005},
  Number                   = {3},
  Pages                    = {135--144},
  Volume                   = {24},

  Booktitle                = {{Freudenthal 100}},
  File                     = {/home/huub/Documents/Research/main/Sources/Treffers2005a-De\_onnavolgbare\_Freudenthal.pdf},
  Journaltitle             = {Panama-Post},
  Url                      = {http://www.fisme.science.uu.nl/publicaties/literatuur/6644.pdf}
}

@Article{Treffers1993a,
  Title                    = {{Wiskobas and Freudenthal realistic mathematics education}},
  Author                   = {Treffers, A.},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {1993},
  Number                   = {1-2},
  Pages                    = {89--108},
  Volume                   = {25},

  Doi                      = {10.1007/BF01274104},
  File                     = {/home/huub/Documents/Research/main/Sources/Treffers1993a-Wiskobas\_and\_Freudenthal-Realistic\_mathematics\_education.pdf},
  ISSN                     = {0013-1954},
  Language                 = {English},
  Publisher                = {Kluwer Academic Publishers},
  Url                      = {http://dx.doi.org/10.1007/BF01274104}
}

@Book{Treffers1987a,
  Title                    = {{Three dimensions. A model of goal and theory description in mathematics education: The Wiskobas Project}},
  Author                   = {Treffers, A.},
  Publisher                = {Reidel},
  Year                     = {1987},

  Address                  = {Dordrecht}
}

@Book{Treffers1978a,
  Title                    = {{Wiskobas doelgericht. Een metode van doelbeschrijving van het wiskundeonderwijs volgens wiskobas}},
  Author                   = {Treffers, A.},
  Publisher                = {IOWO},
  Year                     = {1978},

  File                     = {/home/huub/Documents/Research/main/Sources/Treffers1978a-Wiskobas\_doelgericht.pdf},
  Location                 = {Utrecht}
}

@InProceedings{Trninic2011a,
  Title                    = {{Emergent ontology in embodied interaction: automated feedback as conceptual placeholder}},
  Author                   = {Trninic, Dragan and Abrahamson, Dor},
  Booktitle                = {{Proceedings of the 33rd Annual Meeting of the North American Chapter of the International Group for the Psychology of Mathematics Education}},
  Year                     = {2011},
  Editor                   = {Wiest, L.R. and Lamberg, T.},

  File                     = {/home/huub/Documents/Research/main/Sources/Trninic2011a-Emergent\_ontology\_in\_embodied\_interaction.pdf}
}

@Article{Trowbridge1981a,
  Title                    = {{Investigation of student understanding of the concept of acceleration in one dimension}},
  Author                   = {Trowbridge, David E. and McDermott, Lillian C.},
  Journal                  = {American Journal of Physics},
  Year                     = {1981},
  Number                   = {3},
  Pages                    = {242--253},
  Volume                   = {49},

  Doi                      = {10.1119/1.12525},
  File                     = {/home/huub/Documents/Research/main/Sources/Trowbridge1981a-Investigation\_of\_student\_understanding\_of\_the\_concept\_of\_acceleration\_in\_one\_dimension.pdf},
  Keywords                 = {higher education; motion domain; instantaneous speed; compound variable quantities},
  Publisher                = {AAPT},
  Url                      = {http://link.aip.org/link/?AJP/49/242/1}
}

@InProceedings{Tversky2002a,
  Title                    = {{What do Sketches say about Thinking}},
  Author                   = {Tversky, B.},
  Booktitle                = {{2002 AAAI Spring Symposium, Sketch Understanding Workshop, Stanford University, AAAI Technical Report SS-02-08}},
  Year                     = {2002},

  File                     = {/home/huub/Documents/Research/main/Sources/Tversky2002a-What\_do\_sketches\_say\_about\_thinking.pdf},
  Keywords                 = {representation},
  Url                      = {http://www.aaai.org/Papers/Symposia/Spring/2002/SS-02-08/SS02-08-022.pdf}
}

@Article{Tversky2002b,
  Title                    = {{Animation: can it facilitate?}},
  Author                   = {Tversky, Barbara and Morrison, Julie Bauer and Betrancourt, Mireille},
  Journal                  = {International journal of human-computer studies},
  Year                     = {2002},
  Number                   = {4},
  Pages                    = {247--262},
  Volume                   = {57},

  File                     = {/home/huub/Documents/Research/main/Sources/Tversky2002b-Animation-can\_it\_facilitate.pdf}
}

@InProceedings{Tversky1999a,
  Title                    = {{What does drawing reveal about thinking}},
  Author                   = {Tversky, Barbara and Tversky, Barbara and Tvesky, Barbara},
  Booktitle                = {{In}},
  Year                     = {1999},
  Pages                    = {93--101},

  File                     = {/home/huub/Documents/Research/main/Sources/Tversky1999a-What\_does\_drawing\_reveal\_about\_thinking.pdf},
  Keywords                 = {representation}
}

@InProceedings{Vahey2009a,
  Title                    = {{Meeting the needs of diverse student populations: Findings from the Scaling Up SimCalc project}},
  Author                   = {Vahey, P. and Lara-Meloy, T. and Knudsen, J.},
  Booktitle                = {{Proceedings of the 31st annual meeting of the North American Chapter of the International Group for the Psychology of Mathematics Education. Atlanta, GA: Georgia State University}},
  Year                     = {2009},
  Pages                    = {416--424},

  File                     = {/home/huub/Documents/Research/main/Sources/Vahey2009a-Findings\_from\_the\_scaling\_up\_SimCalc\_project.pdf},
  Keywords                 = {mathematics; ict; microworld; calculus; middle school},
  Url                      = {http://www.pmena.org/2009/proceedings/EQUITY%20AND%20DIVERSITY%20ISSUES/equityRR369979.pdf}
}

@InCollection{Akker2006b,
  Title                    = {{Introducing educational design research}},
  Author                   = {{Van den Akker}, J. and Gravemeijer, K. and McKenney, S. and Nieveen, N.},
  Booktitle                = {{Educational design research}},
  Publisher                = {Routledge London, New York},
  Year                     = {2006},
  Editor                   = {{Van den Akker}, J. and Gravemeijer, K. and McKenney, S. and Nieveen, N.},

  Booktitle2               = {{Educational design research}},
  File                     = {/home/huub/Documents/Research/main/Sources/Akker2006a-Educational\_Design\_Research.pdf},
  File2                    = {/home/huub/Documents/Research/main/Sources/Akker2006a-Educational\_Design\_Research.pdf},
  Url                      = {http://www.fi.uu.nl/publicaties/literatuur/EducationalDesignResearch.pdf}
}

@Book{Akker2006a,
  Title                    = {{Educational design research}},
  Author                   = {{Van den Akker}, J. and Gravemeijer, K. and McKenney, S. and Nieveen, N.},
  Publisher                = {Routledge London, New York},
  Year                     = {2006},

  File                     = {/home/huub/Documents/Research/main/Sources/Akker2006a-Educational\_Design\_Research.pdf},
  Keywords                 = {design research},
  Url                      = {http://www.fi.uu.nl/publicaties/literatuur/EducationalDesignResearch.pdf}
}

@InCollection{Heuvel2001a,
  Title                    = {{Realistic Mathematics Education}},
  Author                   = {{Van den Heuvel-Panhuizen}, M. and Drijvers, P.},
  Booktitle                = {{Encyclopedia of Mathematics Education}},
  Publisher                = {Springer},
  Year                     = {2001},
  Editor                   = {Lerman, S.},

  File                     = {/home/huub/Documents/Research/main/Sources/Heuvel2001a-Realistic\_mathematics\_education.pdf},
  Url                      = {http://www.staff.science.uu.nl/~heuve108/download/Norway/01_RME/VdHeuvel-Drijvers_in%20press_ENCYCLOPEDIA-Realistic%20Mathematics%20Education.pdf}
}

@Article{Heuvel2005a,
  Title                    = {{Mathematics standards and curricula in the Netherlands}},
  Author                   = {{Van den Heuvel-Panhuizen}, M. and Wijers, M.},
  Journal                  = {ZDM},
  Year                     = {2005},
  Number                   = {4},
  Pages                    = {287--307},
  Volume                   = {37},

  File                     = {/home/huub/Documents/Research/main/Sources/Heuvel2005a-Mathematical\_standards\_and\_curricula\_in\_the\_Netherlands.pdf},
  Publisher                = {Springer},
  Url                      = {http://www.fisme.uu.nl/publicaties/literatuur/6663.pdf}
}

@Article{Dooren2010a,
  Title                    = {{Over rekenen, doen en weten. De ontwikkeling van schoolse, impliciete en expliciete kennis over beweging op een hellend vlak}},
  Author                   = {{Van Dooren}, W. and Ebersbach, M. and Verschaffel, L.},
  Journal                  = {Tijdschrift voor Didactiek der Beta-wetenschappen},
  Year                     = {2010},
  Number                   = {1 \& 2},
  Pages                    = {21--35},
  Volume                   = {27},

  File                     = {/home/huub/Documents/Research/main/Sources/Dooren2010a-Over\_rekenen\_doen\_en\_weten.pdf}
}

@Article{Dooren2010b,
  Title                    = {{Students' Behavior in Linear and Non-linear Situations}},
  Author                   = {{Van Dooren}, Wim and Greer, Brian},
  Journal                  = {Mathematical Thinking and Learning},
  Year                     = {2010},
  Number                   = {1},
  Pages                    = {1--3},
  Volume                   = {12},

  File                     = {/home/huub/Documents/Research/main/Sources/Dooren2010b-Students\_behavior\_in\_linear\_and\_non\_linear\_situations.pdf}
}

@Article{Driel1999a,
  Title                    = {{Teachers' knowledge of models and modelling in science}},
  Author                   = {{Van Driel}, J.H. and Verloop, N.},
  Journal                  = {International Journal of Science Education},
  Year                     = {1999},
  Number                   = {11},
  Pages                    = {1141--1153},
  Volume                   = {21},

  File                     = {/home/huub/Documents/Research/main/Sources/Driel1999a-Teachers\_knowledge\_of\_models\_and\_modelling\_in\_science.pdf}
}

@Book{Someren1994a,
  Title                    = {{The think aloud method: A practical guide to modelling cognitive processes}},
  Author                   = {{Van Someren}, M.W. and Barnard, Y.F. and Sandberg, J.A.C.},
  Publisher                = {Academic Press},
  Year                     = {1994},

  Address                  = {London},

  File                     = {/home/huub/Documents/Research/main/Sources/Someren1994a-The\_think\_aloud\_method.pdf},
  ISBN                     = {0127142703},
  Url                      = {http://staff.science.uva.nl/~maarten/Think-aloud-method.pdf}
}

@Article{Vinner1997a,
  Title                    = {{The pseudo-conceptual and the pseudo-analytical thought processes in mathematics learning}},
  Author                   = {Vinner, S.},
  Journal                  = {Educational Studies in Mathematics},
  Year                     = {1997},
  Number                   = {2},
  Pages                    = {97--129},
  Volume                   = {34},

  File                     = {/home/huub/Documents/Research/main/Sources/Vinner1997a-The\_pseudo-conceptual\_and\_the\_pseudo-analytical.pdf},
  Keywords                 = {theory; pseudo}
}

@Article{Vogel2007a,
  Title                    = {{Supplantation of mental operations on graphs}},
  Author                   = {Vogel, M. and Girwidz, R. and Engel, J.},
  Journal                  = {Computers \& Education},
  Year                     = {2007},
  Number                   = {4},
  Pages                    = {1287--1298},
  Volume                   = {49},

  File                     = {/home/huub/Documents/Research/main/Sources/Vogel2007a-Supplantation\_of\_mental\_operations\_on\_graphs.pdf},
  Keywords                 = {graph; multimedia; ict; interpret graph; secondary education; middle school},
  Publisher                = {Elsevier}
}

@Article{Vollrath1989a,
  Title                    = {{Funktionales Denken}},
  Author                   = {Vollrath, Hans-Joachim},
  Journal                  = {Journal f{\"u}r Mathematik-Didaktik},
  Year                     = {1989},
  Number                   = {1},
  Pages                    = {3--37},
  Volume                   = {10},

  Doi                      = {10.1007/BF03338719},
  ISSN                     = {0173-5322},
  Language                 = {German},
  Publisher                = {Springer-Verlag},
  Url                      = {http://dx.doi.org/10.1007/BF03338719}
}

@InCollection{Glasersfeld1984a,
  Title                    = {{An introduction to radical constructivism}},
  Author                   = {{Von Glasersfeld}, E.},
  Booktitle                = {{The invented reality}},
  Publisher                = {Norton},
  Year                     = {1984},

  Address                  = {New York},
  Editor                   = {Watzlawick, P.},
  Pages                    = {17--40},

  File                     = {/home/huub/Documents/Research/main/Sources/Glasersfeld1984a-An\_introduction\_to\_radiacal\_constructivism.pdf},
  Keywords                 = {glasersfeld; constructivism},
  Url                      = {http://anti-matters.org/ojs/index.php/antimatters/article/view/88/81}
}

@Electronic{VTBPROxxxxa,
  Title                    = {{Uitwerking van het Theoretisch Kader voor Professionalisering van Leerkrachten op het Gebied vna Wetenschap en Techniek}},
  Author                   = {VTB-Pro},
  Organization             = {VTB-Pro},
  Url                      = {http://www.vtbpro.nl//docs/VTB-Pro/Theoretisch%20Kader%20VTB-Pro.doc.pdf},

  File                     = {/home/huub/Documents/Research/main/Sources/VTBPROxxxxa-Uitwerking\_van\_het\_theoretisch\_kader\_voor\_de\_professionalisering\_van\_leerkrachten\_op\_het\_gebied\_van\_wetenschap\_en\_techniek.pdf},
  Keywords                 = {science; teacher}
}

@Book{Vygotsky1986a,
  Title                    = {{Thought and language}},
  Author                   = {Vygotsky, Lev},
  Publisher                = {The MIT Press},
  Year                     = {1986},

  Location                 = {Cambridge, Massachusetts}
}

@Article{Wainer1992a,
  Title                    = {{Understanding Graphs and Tables}},
  Author                   = {Wainer, Howard},
  Journal                  = {Educational Researcher},
  Year                     = {1992},
  Number                   = {1},
  Pages                    = {14--23},
  Volume                   = {21},

  Doi                      = {10.3102/0013189X021001014},
  File                     = {/home/huub/Documents/Research/main/Sources/Wainer1992a-Understanding\_graphs\_and\_tables.pdf}
}

@Article{Waldrip2010a,
  Title                    = {{Using Multi-Modal Representations to Improve Learning in Junior Secondary Science}},
  Author                   = {Waldrip, Bruce and Prain, Vaughan and Carolan, Jim},
  Journal                  = {Research in Science Education},
  Year                     = {2010},
  Number                   = {1},
  Pages                    = {65--80},
  Volume                   = {40},

  Doi                      = {10.1007/s11165-009-9157-6},
  File                     = {/home/huub/Documents/Research/main/Sources/Waldrip2010a-Using\_multi-modal\_representations\_to\_improve\_learning\_in\_junior\_secondary\_science.pdf},
  ISSN                     = {0157-244X},
  Keywords                 = {Representations; Mode; Science; Learning; Pedagogy},
  Language                 = {English},
  Publisher                = {Springer Netherlands},
  Url                      = {http://dx.doi.org/10.1007/s11165-009-9157-6}
}

@InCollection{Walker2011a,
  Title                    = {{Design-Based Research}},
  Author                   = {Walker, Richard},
  Booktitle                = {{Methodological Choice and Design}},
  Publisher                = {Springer Netherlands},
  Year                     = {2011},
  Editor                   = {Markauskaite, Lina and Freebody, Peter and Irwin, Jude},
  Note                     = {10.1007/978-90-481-8933-5\_4},
  Pages                    = {51--56},
  Series                   = {{Methodos Series}},
  Volume                   = {9},

  Affiliation              = {Faculty of Education and Social Work, The University of Sydney, Sydney, NSW Australia},
  File                     = {/home/huub/Documents/Research/main/Sources/Walker2011a-Design\_based\_research-Reflections\_on\_some\_epistemological\_issues\_and\_practices.pdf},
  ISBN                     = {978-90-481-8933-5},
  Keywords                 = {design research},
  Url                      = {http://dx.doi.org/10.1007/978-90-481-8933-5_4}
}

@Article{Wallis2006a,
  Title                    = {{How to bring our schools out of the 20th century}},
  Author                   = {Wallis, C. and Steptoe, S.},
  Journal                  = {Time magazine},
  Year                     = {2006},
  Number                   = {25},
  Pages                    = {50--56},
  Volume                   = {168},

  File                     = {/home/huub/Documents/Research/main/Sources/Wallis2006a-How\_to\_bring\_our\_schools\_out\_of\_the\_20th\_century.pdf}
}

@Article{Watson2001a,
  Title                    = {{Pedagogy before technology: Re-thinking the relationship between ICT and teaching}},
  Author                   = {Watson, D.},
  Journal                  = {Education and Information technologies},
  Year                     = {2001},
  Number                   = {4},
  Pages                    = {251--266},
  Volume                   = {6},

  File                     = {/home/huub/Documents/Research/main/Sources/Watson2001a-Pedagogy\_before\_technology-re-thinking\_the\_relationship\_between\_ICT\_and\_teaching.pdf}
}

@Article{Webb2008a,
  Title                    = {{Impact of IT on science education}},
  Author                   = {Webb, M.},
  Journal                  = {International Handbook of Information Technology in Primary and Secondary Education},
  Year                     = {2008},
  Pages                    = {133--148},

  File                     = {/home/huub/Documents/Research/main/Sources/Webb2008a-Impact\_of\_IT\_on\_science\_education.pdf},
  Keywords                 = {ict; modeling; interactive; sensor; secondary education; primary education}
}

@Article{Webb2003a,
  Title                    = {{Promoting effective helping behavior in peer-directed groups}},
  Author                   = {Webb, N.M. and Mastergeorge, A.},
  Journal                  = {International Journal of Educational Research},
  Year                     = {2003},
  Number                   = {1},
  Pages                    = {73--97},
  Volume                   = {39},

  File                     = {/home/huub/Documents/Research/main/Sources/Webb2003a.pdf},
  Publisher                = {Elsevier}
}

@TechReport{Wegerif2002a,
  Title                    = {{Literature review in thinking skills, technology and learning literature review in thinking skills, technology and learning: a report for futurelab}},
  Author                   = {Wegerif, R.},
  Year                     = {2002},

  File                     = {/home/huub/Documents/Research/main/Sources/Wegerif2002a-Literature\_review\_in\_thinking\_skills-technology\_and\_learning.pdf},
  Keywords                 = {review; science},
  Publisher                = {Futurelab},
  Url                      = {http://archive.futurelab.org.uk/resources/documents/lit_reviews/Thinking_Skills_Review.pdf}
}

@Article{Wegerif1996a,
  Title                    = {{Collaborative learning and directive software}},
  Author                   = {Wegerif, R.},
  Journal                  = {Journal of Computer Assisted Learning},
  Year                     = {1996},
  Number                   = {1},
  Pages                    = {22--32},
  Volume                   = {12},

  File                     = {/home/huub/Documents/Research/main/Sources/Wegerif1996a-Collaborative\_learning\_and\_directive\_software.pdf}
}

@Article{Weinberger2006a,
  Title                    = {{A framework to analyze argumentative knowledge construction in computer-supported collaborative learning}},
  Author                   = {Weinberger, A. and Fischer, F.},
  Journal                  = {Computers \& education},
  Year                     = {2006},
  Number                   = {1},
  Pages                    = {71--95},
  Volume                   = {46},

  File                     = {/home/huub/Documents/Research/main/Sources/Weinberger2006a-A\_framework\_to\_analyze\_argumentative\_knowledge\_construction\_in\_CSCL.pdf},
  Publisher                = {Elsevier}
}

@Article{Westra2002a,
  Title                    = {{Leren door zelf modelleren: constructief en uitdagend onderwijs}},
  Author                   = {Westra, R. and Savelsbergh, E. and Kortland, K. and Prins, G. and Mooldijk, A.},

  File                     = {/home/huub/Documents/Research/main/Sources/Westra2002a-Leren\_door\_zelf\_modelleren-constructief\_en\_uitdagend\_onderwijs.pdf},
  Url                      = {http://www.cdbeta.uu.nl/vo/modelleren/literatuur/modelleer_NVOX.pdf}
}

@Article{Wilensky2006a,
  Title                    = {{Thinking like a wolf, a sheep, or a firefly: Learning biology through constructing and testing computational theories---an embodied modeling approach}},
  Author                   = {Wilensky, U. and Reisman, K.},
  Journal                  = {Cognition and Instruction},
  Year                     = {2006},
  Number                   = {2},
  Pages                    = {171--209},
  Volume                   = {24},

  File                     = {/home/huub/Documents/Research/main/Sources/Wilensky2006a-Thinking\_like\_a\_wolf-Through\_constructing\_and\_testing\_computational\_theories-An\_embodied\_modeling\_approach.pdf},
  Url                      = {http://ccl.sesp.northwestern.edu/papers/2006/Thinking_Like_a_Wolf(1).pdf}
}

@Article{Wilhelm2003a,
  Title                    = {{Projecting rate of change in the context of motion onto the context of money}},
  Author                   = {Wilhelm, J.A. and Confrey, J.},
  Journal                  = {International Journal of Mathematical Education in Science and Technology},
  Year                     = {2003},
  Number                   = {6},
  Pages                    = {887--904},
  Volume                   = {34},

  File                     = {/home/huub/Documents/Research/main/Sources/Wilhelm2003a-Projecting\_rate\_of\_change\_in\_the\_context\_of\_motion\_onto\_the\_context\_of\_money.pdf},
  Keywords                 = {motion domain; alternative domain; compound variable quantities; ict; graph; draw graph; interpret graph; middle school; secondary education},
  Publisher                = {Taylor \& Francis}
}

@InCollection{Wilkening2002a,
  Title                    = {{Children's intuitive physics}},
  Author                   = {Wilkening, F. and Huber, Susanne},
  Booktitle                = {{Blackwell Handbook of Childhood Cognitive Development}},
  Year                     = {2002},
  Editor                   = {Goswami, Usha},
  Pages                    = {349--370},

  File                     = {/home/huub/Documents/Research/main/Sources/Wilkening2002a-Childrens\_intuitive\_physics.pdf},
  Keywords                 = {science}
}

@Article{Wilkerson2010a,
  Title                    = {{Seeing change in the world from different levels: understanding the mathematics of complex systems}},
  Author                   = {Wilkerson-Jerde, Michelle and Wilensky, Uri},
  Year                     = {2010},
  Pages                    = {190--192},

  Acmid                    = {1854601},
  Booktitle                = {{Proceedings of the 9th International Conference of the Learning Sciences - Volume 2}},
  File                     = {/home/huub/Documents/Research/main/Sources/Wilkerson2010a-Seeing\_change\_ing\_the\_world\_from\_different\_levels.pdf},
  Keywords                 = {alternative domain; change; science; secondary education},
  Location                 = {Chicago, Illinois},
  Numpages                 = {3},
  Publisher                = {International Society of the Learning Sciences},
  Series                   = {{ICLS '10}},
  Url                      = {http://portal.acm.org/citation.cfm?id=1854509.1854601}
}

@Article{Willoughby1997a,
  Title                    = {{Functions from kindergarten through sixth grade}},
  Author                   = {Willoughby, S.S.},
  Journal                  = {Teaching Children Mathematics},
  Year                     = {1997},
  Pages                    = {314--318},
  Volume                   = {3},

  File                     = {/home/huub/Documents/Research/main/Sources/Willoughby1997a-Functions\_from\_kindergarten\_through\_sixth\_grade.pdf},
  Keywords                 = {function; algebra; primary education},
  Publisher                = {SOCIETY OF NATIONAL ASSOCIATION PUBLICATIONS},
  Url                      = {http://sdcounts.tie.wikispaces.net/file/view/functions+from+Kto6th.pdf/61212116/functions%20from%20Kto6th.pdf}
}

@Article{Windschitl2008a,
  Title                    = {{Beyond the scientific method: Model-based inquiry as a new paradigm of preference for school science investigations}},
  Author                   = {Windschitl, M. and Thompson, J. and Braaten, M.},
  Journal                  = {Science education},
  Year                     = {2008},
  Number                   = {5},
  Pages                    = {941--967},
  Volume                   = {92},

  File                     = {/home/huub/Documents/Research/main/Sources/Windschitl2008a-Beyond\_the\_scientific\_method-model-based\_inquiry\_as\_a\_new\_paradigm.pdf}
}

@Unpublished{Wing2010a,
  Title                    = {{Computational Thinking: What and Why?}},
  Author                   = {Wing, J.},
  Year                     = {2010},

  File                     = {/home/huub/Documents/Research/main/Sources/Wing2010a-Computational\_thinking-what\_and\_why.pdf},
  Url                      = {http://www.exploringcs.org/wp-content/uploads/2010/09/Wing-CT-Article.pdf}
}

@Article{Wing2008a,
  Title                    = {{Computational thinking and thinking about computing}},
  Author                   = {Wing, Jeannette M},
  Journal                  = {Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences},
  Year                     = {2008},
  Number                   = {1881},
  Pages                    = {3717--3725},
  Volume                   = {366},

  Abstract                 = {Computational thinking will influence everyone in every field of endeavour. This vision poses a new educational challenge for our society, especially for our children. In thinking about computing, we need to be attuned to the three drivers of our field: science, technology and society. Accelerating technological advances and monumental societal demands force us to revisit the most basic scientific questions of computing.},
  Doi                      = {10.1098/rsta.2008.0118},
  Eprint                   = {http://rsta.royalsocietypublishing.org/content/366/1881/3717.full.pdf+html},
  File                     = {/home/huub/Documents/Research/main/Sources/Wing2008a-Computational\_thinking\_and\_thinking\_about\_computing.pdf},
  Url                      = {http://rsta.royalsocietypublishing.org/content/366/1881/3717.abstract}
}

@Article{Wing2006a,
  Title                    = {{Computational thinking}},
  Author                   = {Wing, Jeannette M},
  Journal                  = {Communications of the ACM},
  Year                     = {2006},
  Number                   = {3},
  Pages                    = {33--35},
  Volume                   = {49},

  File                     = {/home/huub/Documents/Research/main/Sources/Wing2006a-Computational\_thinking.pdf},
  Url                      = {http://livinglab.commons.gc.cuny.edu/files/2011/01/Wing061.pdf}
}

@Conference{Woodgate2007a,
  Title                    = {{Providing an `Authentic' Scientific Experience: Technology, Motivation and Learning}},
  Author                   = {Woodgate, D. and Fraser, D.S. and Crellin, D.},
  Booktitle                = {{Workshop of Emerging Technologies for Inquiry-Based Learning in Science.}},
  Year                     = {2007},
  Pages                    = {5--14},

  File                     = {/home/huub/Documents/Research/main/Sources/Woodgate2007a-Providing\_an\_authentic\_scientific\_experience.pdf},
  Keywords                 = {ict}
}

@Article{Woodruff1997a,
  Title                    = {{Explanations from intra- and inter-group discourse: Students building knowledge in the science classroom}},
  Author                   = {Woodruff, Earl and Meyer, Karen},
  Journal                  = {Research in Science Education},
  Year                     = {1997},
  Number                   = {1},
  Pages                    = {25--39},
  Volume                   = {27},

  Doi                      = {10.1007/BF02463030},
  File                     = {/home/huub/Documents/Research/main/Sources/Woodruff1997a-Explanations\_from\_intra\_and\_inter-group\_discourse.pdf},
  ISSN                     = {0157-244X},
  Language                 = {English},
  Publisher                = {Kluwer Academic Publishers},
  Url                      = {http://dx.doi.org/10.1007/BF02463030}
}

@Article{Wu2006a,
  Title                    = {{Inscriptional practices in two inquiry-based classrooms: A case study of seventh graders' use of data tables and graphs}},
  Author                   = {Wu, H.K. and Krajcik, J.S.},
  Journal                  = {Journal of research in science teaching},
  Year                     = {2006},
  Number                   = {1},
  Pages                    = {63--95},
  Volume                   = {43},

  File                     = {/home/huub/Documents/Research/main/Sources/Wu2006a-Inscriptional\_practices\_in\_two\_inquiry\_based\_classrooms.pdf},
  Keywords                 = {secondary education; table; graph; alternative domain},
  Publisher                = {Wiley Online Library}
}

@Article{Yackel1996a,
  Title                    = {{Sociomathematical Norms, Argumentation, and Autonomy in Mathematics}},
  Author                   = {Yackel, E. and Cobb, P.},
  Journal                  = {Journal for Research in Mathematics Education},
  Year                     = {1996},
  Number                   = {4},
  Pages                    = {458--477},
  Volume                   = {27},

  File                     = {/home/huub/Documents/Research/main/Sources/Yackel1996a-Sociomathematical\_Norms\_Argumentation\_and\_Autonomy\_in\_Mathematics.pdf},
  Keywords                 = {mathematics; social constructivism},
  Url                      = {http://www.jstor.org/stable/749877}
}

@Article{Yavuz2010a,
  Title                    = {{What does a graphical representation mean for students at the beginning of function teaching?}},
  Author                   = {Yavuz, İlyas},
  Journal                  = {International Journal of Mathematical Education in Science and Technology},
  Year                     = {2010},
  Number                   = {4},
  Pages                    = {467--485},
  Volume                   = {41},

  Doi                      = {10.1080/00207390903477442},
  Eprint                   = {http://www.tandfonline.com/doi/pdf/10.1080/00207390903477442},
  File                     = {/home/huub/Documents/Research/main/Sources/Yavuz2010a-What\_does\_a\_graphical\_representation\_mean\_for\_students\_at\_the\_beginning\_of\_function\_teaching.pdf},
  Url                      = {http://www.tandfonline.com/doi/abs/10.1080/00207390903477442}
}

@Article{Yelland2005a,
  Title                    = {{The future is now: A review of the literature on the use of computers in early childhood education (1994-2004)}},
  Author                   = {Yelland, N.},
  Journal                  = {AACE Journal},
  Year                     = {2005},
  Number                   = {3},
  Pages                    = {201--232},
  Volume                   = {13},

  File                     = {/home/huub/Documents/Research/main/Sources/Yelland2005a-The\_future\_is\_now-A\_review\_of\_the\_literature\_on\_the\_use\_of\_computers\_in\_early\_childhood\_education.pdf},
  Keywords                 = {review; ict; primary education},
  Publisher                = {Association for the Advancement of Computing in Education. PO Box 1545, Chesapeake, VA 23327-1545. Tel: 757-366-5606; Fax: 703-997-8760; e-mail: info@ aace. org; Web site: http://www. aace. org/pubs/aacej},
  Url                      = {http://www.editlib.org/f/6038}
}

@Article{Yelland1995a,
  Title                    = {{Mindstorms or a storm in a teacup? A review of research with Logo}},
  Author                   = {Yelland, N.},
  Journal                  = {International Journal of Mathematical Education in Science and Technology},
  Year                     = {1995},
  Number                   = {6},
  Pages                    = {853--869},
  Volume                   = {26},

  File                     = {/home/huub/Documents/Research/main/Sources/Yelland1995a-Mindstorms\_or\_a\_storm\_in\_a\_teacup.pdf},
  Keywords                 = {ict; programming}
}

@Book{Yelland2001a,
  Title                    = {{Teaching and learning with information and communication technologies (ICT) for numeracy in the early childhood and primary years of schooling}},
  Author                   = {Yelland, N.J. and {Australia. Dept. of Education}, Training and Affairs, Youth},
  Publisher                = {Dept. of Education, Training and Youth Affairs},
  Year                     = {2001},

  File                     = {/home/huub/Documents/Research/main/Sources/Yelland2001a-Teaching\_and\_learning\_with\_ICT\_for\_numeracy\_in\_primary\_years.pdf},
  ISBN                     = {0642518858},
  Keywords                 = {primary education; ict; review},
  Url                      = {http://www.dest.gov.au/archive/Research/fellowship/docs/Nicola_Yelland/Yelland_report.pdf}
}

@Article{Yeo2004a,
  Title                    = {{What do students really learn from interactive multimedia? A physics case study}},
  Author                   = {Yeo, Shelley and Loss, Robert and Zadnik, Marjan and Harrison, Allan and Treagust, David},
  Journal                  = {American Journal of Physics},
  Year                     = {2004},
  Number                   = {10},
  Pages                    = {1351--1358},
  Volume                   = {72},

  Doi                      = {10.1119/1.1748074},
  File                     = {/home/huub/Documents/Research/main/Sources/Yeo2004a-What\_do\_students\_really\_learn\_from\_interactive\_multimedia.pdf},
  Url                      = {http://scitation.aip.org/content/aapt/journal/ajp/72/10/10.1119/1.1748074}
}

@Article{Yerushalmy1997a,
  Title                    = {{Mathematizing verbal descriptions of situations: A language to support modeling}},
  Author                   = {Yerushalmy, M.},
  Journal                  = {Cognition and Instruction},
  Year                     = {1997},
  Number                   = {2},
  Pages                    = {207--264},
  Volume                   = {15},

  File                     = {/home/huub/Documents/Research/main/Sources/Yerushalmy1997a-Mathematizing\_verbal\_descriptions\_of\_situations.pdf}
}

@Book{Yin1989a,
  Title                    = {{Case study research: Design and methods}},
  Author                   = {Yin, R.K.},
  Publisher                = {SAGE publications},
  Year                     = {1989},

  Address                  = {Newbury Park},
  Edition                  = {Revised edition},
  Series                   = {{Applied Social Research Methods Series}},
  Volume                   = {5}
}

@Article{Youschkevitch1976a,
  Title                    = {{The concept of function up to the middle of the 19th century}},
  Author                   = {Youschkevitch, A.P.},
  Journal                  = {Archive for History of Exact Sciences},
  Year                     = {1976},
  Number                   = {1},
  Pages                    = {37--85},
  Volume                   = {16},

  Doi                      = {10.1007/BF00348305},
  File                     = {/home/huub/Documents/Research/main/Sources/Youschkevitch1976a-The\_concept\_of\_function\_up\_to\_the\_middle\_of\_the\_19th\_century.pdf},
  ISSN                     = {0003-9519},
  Language                 = {English},
  Publisher                = {Springer-Verlag},
  Url                      = {http://dx.doi.org/10.1007/BF00348305}
}

@InProceedings{Tall1996a,
  Title                    = {{Conceptual and procedural approaches to problem solving}},
  Author                   = {Yusof, Y. and Tall, D.},
  Booktitle                = {{Proceedings of PME 20, Valencia 1996}},
  Year                     = {1996},
  Pages                    = {3--10},
  Volume                   = {4},

  File                     = {/home/huub/Documents/Research/main/Sources/Tall1996a-Conceptual\_and\_procedural\_approaches\_to\_problem\_solving.pdf},
  Url                      = {http://homepages.warwick.ac.uk/staff/David.Tall/pdfs/dot1996g-yusof-pme.pdf}
}

@Article{Zacks1999a,
  Title                    = {{Bars and lines: A study of graphic communication}},
  Author                   = {Zacks, Jeff and Tversky, Barbara},
  Journal                  = {Memory \& Cognition},
  Year                     = {1999},
  Number                   = {6},
  Pages                    = {1073--1079},
  Volume                   = {27},

  Doi                      = {10.3758/BF03201236},
  File                     = {/home/huub/Documents/Research/main/Sources/Zacks1999a-Bars\_and\_lines-a\_study\_of\_graphic\_communication.pdf},
  ISSN                     = {0090-502X},
  Language                 = {English},
  Publisher                = {Springer-Verlag},
  Url                      = {http://dx.doi.org/10.3758/BF03201236}
}

@Article{Zacks2001a,
  Title                    = {{Perceiving, remembering, and communicating structure in events.}},
  Author                   = {Zacks, J.M. and Tversky, B. and Iyer, G.},
  Journal                  = {Journal of Experimental Psychology: General},
  Year                     = {2001},
  Number                   = {1},
  Pages                    = {29},
  Volume                   = {130},

  File                     = {/home/huub/Documents/Research/main/Sources/Zacks2001a-Perceiving\_remembering\_and\_communicating\_structure\_in\_events.pdf},
  Publisher                = {American Psychological Association}
}

@InCollection{Zandieh2000a,
  Title                    = {{A theoretical framework for analyzing student understanding of the concept of derivative}},
  Author                   = {Zandieh, M.},
  Booktitle                = {{Research in Collegiate Mathematics Education. IV}},
  Year                     = {2000},
  Editor                   = {Dubinsky, E. and Schoenfeld, A. and Kaput, J.},
  Pages                    = {103--127},
  Series                   = {{Issues in Mathematics Education}},
  Volume                   = {8},

  File                     = {/home/huub/Documents/Research/main/Sources/Zandieh2000a-A\_theoretical\_framework\_for\_analyzing\_student\_understanding\_of\_the\_concept\_of\_derivative.pdf}
}

@Article{Zaritsky2003a,
  Title                    = {{Clinical design sciences: A view from sister design efforts}},
  Author                   = {Zaritsky, R. and Kelly, A.E. and Flowers, W. and Rogers, E. and O'Neill, P.},
  Journal                  = {Educational Researcher},
  Year                     = {2003},
  Number                   = {1},
  Pages                    = {32--34},
  Volume                   = {32},

  File                     = {/home/huub/Documents/Research/main/Sources/Zaritsky2003a-Clinical\_design\_sciences-A\_view\_from\_sister\_design\_efforts.pdf},
  Keywords                 = {design research},
  Publisher                = {American Educational Research Association},
  Url                      = {https://www.aera.net/uploadedFiles/Journals\_and\_Publications/Journals/Educational\_Researcher/3201/3201\_Zaritsky.pdf}
}

@InCollection{Zbiek2007a,
  Title                    = {{Research on technology in mathematics education: the perspecive of constructs}},
  Author                   = {Zbiek, Rose Mary and Heid, M. Kathleen and Blume, Glendon},
  Booktitle                = {{Second handbook of research on mathematics teaching and learning}},
  Year                     = {2007},
  Chapter                  = {27},
  Editor                   = {Lester, Frank K.},
  Pages                    = {1169--1207},
  Volume                   = {2},

  File                     = {/home/huub/Documents/Research/main/Sources/Zbiek2007a-Research\_on\_technology\_in\_mathematics\_education.pdf}
}

@Article{Zhou2000a,
  Title                    = {{American and Chinese children's understanding of distance, time, and speed interrelations}},
  Author                   = {Zhou, Zheng and Peverly, Stephen T and Boehm, Ann E and Chongde, Lin},
  Journal                  = {Cognitive Development},
  Year                     = {2000},
  Number                   = {2},
  Pages                    = {215--240},
  Volume                   = {15},

  Doi                      = {10.1016/S0885-2014(00)00031-9},
  File                     = {/home/huub/Documents/Research/main/Sources/Zhou2000a-American\_and\_chinese\_childrens\_understanding\_of\_distance\_time\_and\_speed\_interrelations.pdf},
  ISSN                     = {0885-2014},
  Keywords                 = {Chinese{\^a}€``American children},
  Url                      = {http://www.sciencedirect.com/science/article/pii/S0885201400000319}
}

@InCollection{Zuccheri2014a,
  Title                    = {{History of Teaching Calculus}},
  Author                   = {Zuccheri, Luciana and Zudini, Verena},
  Booktitle                = {{Handbook on the History of Mathematics Education}},
  Publisher                = {Springer New York},
  Year                     = {2014},
  Editor                   = {Karp, Alexander and Schubring, Gert},
  Pages                    = {493--513},

  Doi                      = {10.1007/978-1-4614-9155-2_24},
  File                     = {/home/huub/Documents/Research/main/Sources/Zuccheri2014a-History\_of\_teaching\_calculus.pdf},
  ISBN                     = {978-1-4614-9154-5},
  Language                 = {English},
  Url                      = {http://dx.doi.org/10.1007/978-1-4614-9155-2_24}
}

@Misc{Gravemeijer1984a,
  Title                    = {{Rekenen \& Wiskunde}},
  Year                     = {1984-1988},

  Address                  = {Baarn},
  Editor                   = {Gravemeijer, K.},
  Publisher                = {Bekadidact},
  Type                     = {Textbook series}
}

@Other{Harel1994a,
  Title                    = {{The development of multiplicative reasoning in the learning of mathematics}},
  Editor                   = {Harel, G. and Confrey, J.},
  Publisher                = {SUNY Press},
  Year                     = {1994}
}

@Book{Illari2013a,
  Title                    = {{The Philosophy of Information - a Simple Introduction}},
  Editor                   = {Illari, Phyllis},
  Year                     = {2013},

  Localfile                = {/home/huub/to-research/Sources/Illari2013a-The_philosophy_of_information-an_introduction.pdf},
  Url                      = {http://socphilinfo.org/sites/default/files/i2pi_2013.pdf}
}

@Book{Keulen2009b,
  Title                    = {{Onderzoek naar wetenschap en techniek in het Nederlandse basisonderwijs}},
  Editor                   = {Keulen, Hanno van and Molen, Juliette Walma van der},
  Publisher                = {Platform B{\`e}ta Techniek},
  Year                     = {2009},

  Address                  = {Den Haag},

  Keywords                 = {science; primary education}
}

@Book{Khine2011a,
  Title                    = {{Models and modeling: cognitive tools for scientific enquiry}},
  Editor                   = {Khine, Myint Swe and Saleh, Issa M.},
  Publisher                = {Springer Science+Business Media},
  Year                     = {2011},
  Volume                   = {6},

  File                     = {/home/huub/Documents/Research/main/Sources/Khine2011a-Models\_and\_modeling-Cognitive\_tools\_for\_scientific\_enquiry.pdf}
}

@Book{Millar1998a,
  Title                    = {{Beyond 2000: Science education for the future}},
  Editor                   = {Millar, R. and Osborne, J.},
  Publisher                = {King's College London},
  Year                     = {1998},

  Address                  = {London},

  File                     = {/home/huub/Documents/Research/main/Sources/Millar1998a-Beyond\_2000-Science\_education\_for\_the\_future.pdf},
  Institution              = {Nuffield Foundation},
  Keywords                 = {science; primary education; secondary education},
  Url                      = {http://www.nuffieldfoundation.org/fileLibrary/pdf/Beyond_2000.pdf}
}

@Book{Prediger2015a,
  Title                    = {Design research with a focus on learning processes},
  Editor                   = {S. Prediger and K. Gravemeijer and J. Confrey},
  Publisher                = {Springer},
  Year                     = {2015},
  Number                   = {6},
  Series                   = {ZDM},
  Volume                   = {47},

  Owner                    = {huub},
  Timestamp                = {2016.01.22}
}

@Book{Shavelson2002a,
  Title                    = {{Scientific research in education}},
  Editor                   = {Shavelson, Richard J. and Towne, Lisa},
  Publisher                = {National Academy Press},
  Year                     = {2002},

  Address                  = {Washington},
  Note                     = {Center for Education; Division of Behavioral and Social Sciences and Education; national Research Council}
}

@Book{Swan1985a,
  Title                    = {{The Language of Functions and Graphs}},
  Editor                   = {Swan, Malcolm},
  Publisher                = {Shell Centre for Mathematical Education},
  Year                     = {1985},

  File                     = {/home/huub/Documents/Research/main/Sources/Swan1985a-The\_language\_of\_functions\_and\_graphs.pdf},
  Subtitle                 = {An Examination Module for Secondary Schools},
  Url                      = {http://www.mathshell.com/publications/tss/lfg/lfg_teacher.pdf}
}

@Article{Goodwin1994a,
  Localfile                = {/home/huub/to-research/Sources/Goodwin1994a-Professional_vision.pdf},
  Url                      = {http://thehangedman.com/teaching-files/ccc/goodwin-vision.pdf}
}

@InCollection{Gravemeijer2014a,
  Doi                      = {10.1007/978-3-319-04993-9_10},
  Localfile                = {/home/huub/Documents/Research/main/Sources/Gravemeijer2014a-Transforming_mathematics_education-The_role_of_textbooks_and_teachers.pdf},
  Url                      = {http://dx.doi.org/10.1007/978-3-319-04993-9_10}
}

@Article{Howe1990a,
  Localfile                = {/home/huub/to-research/Sources/Howe1990a-Standards_for_qualitative_research-A_prolegomenon.pdf},
  Url                      = {http://www.colorado.edu/education/sites/default/files/attached-files/Howe_Eisenhart_Stds_for_Qualitative_Research.pdf}
}

@Article{Maxwell2004b,
  Doi                      = {10.1177/1077800403259492},
  Eprint                   = {http://qix.sagepub.com/content/10/1/35.full.pdf+html},
  Localfile                = {/home/huub/to-research/Sources/Maxwell2004b-Re-emergent_scientism_postmodernism_and_dialogue_across_differences.pdf},
  Url                      = {http://qix.sagepub.com/content/10/1/35.abstract}
}

@Book{Pluspunt,
  Title                    = {{Pluspunt groep 6 en groep 7}},
  Publisher                = {Malmberg},

  Comment                  = {twee voorbeelden van een opdracht met het koppelen van grafieken aan verschillende glazen/flessen, pagina 62 (gr 6; plusboek) en 70 (gr 7; gewoon boek)},
  Keywords                 = {unavailable}
}

@Article{Sandoval2014a,
  Localfile                = {/home/huub/to-research/Sources/Sandoval2014a-Conjecture_mapping.pdf}
}

