Design experiments in educational research P Cobb, J Confrey, A DiSessa, R Lehrer, L Schauble Educational researcher 32 (1), 9-13, 2003 | 4803 | 2003 |

Chapter 1: A review of the research on student conceptions in mathematics, science, and programming J Confrey Review of research in education 16 (1), 3-56, 1990 | 627 | 1990 |

Chapter 8: What constructivism implies for teaching J Confrey Journal for Research in Mathematics Education. Monograph 4, 107-210, 1990 | 589 | 1990 |

Splitting, covariation, and their role in the development of exponential functions J Confrey, E Smith Journal for research in mathematics education, 66-86, 1995 | 510 | 1995 |

On evaluating curricular effectiveness: Judging the quality of K-12 mathematics evaluations National Research Council National Academies Press, 2004 | 406 | 2004 |

The evolution of design studies as methodology J Confrey na, 2006 | 359 | 2006 |

Exponential functions, rates of change, and the multiplicative unit J Confrey, E Smith Learning mathematics, 31-60, 1994 | 357 | 1994 |

Improving Teaching and Learning in Science and Mathematics. DF Treagust Teachers College Press, Teachers College, Columbia University, 1234 …, 1996 | 319* | 1996 |

Multiplication and Exponential Functions J Confrey The development of multiplicative reasoning in the learning of mathematics 291, 1994 | 298 | 1994 |

Learning trajectory based instruction: Toward a theory of teaching P Sztajn, J Confrey, PH Wilson, C Edgington Educational researcher 41 (5), 147-156, 2012 | 291 | 2012 |

Transformative Teaching Experiments through Conjecture-Driven Research Design. J Confrey, A Lachance Lawrence Erlbaum Associates, Inc., 10 Industrial Avenue, Mahwah, NJ 07430 …, 2000 | 265 | 2000 |

How compatible are radical constructivism, sociocultural approaches, and social constructivism? J Confrey Lawrence Erlbaum Associates, Inc, 1995 | 256 | 1995 |

A theory of intellectual development J Confrey for the learning of mathematics 15 (1), 38-48, 1995 | 241 | 1995 |

Equipartitioning/splitting as a foundation of rational number reasoning using learning trajectories J Confrey, A Maloney, K Nguyen, G Mojica, M Myers 33rd Conference of the International Group for the Psychology of Mathematics …, 2009 | 219 | 2009 |

Learning to listen: A student’s understanding of powers of ten J Confrey Radical constructivism in mathematics education, 111-138, 1991 | 215 | 1991 |

Development of Multiplicative Reasoning in the Learning of Mathematics, The G Harel, J Confrey Suny Press, 1994 | 213 | 1994 |

A thirty-year reflection on constructivism in mathematics education in PME J Confrey, S Kazak Handbook of research on the psychology of mathematics education, 305-345, 2006 | 158 | 2006 |

Learning trajectories in teacher education: Supporting teachers’ understandings of students’ mathematical thinking PH Wilson, GF Mojica, J Confrey The Journal of Mathematical Behavior 32 (2), 103-121, 2013 | 132 | 2013 |

A student's construction of transformations of functions in a multiple representational environment MC Borba, J Confrey Educational Studies in Mathematics 31 (3), 319-337, 1996 | 126 | 1996 |

From conceptual change to transformative modeling: A case study of an elementary teacher in learning astronomy J Shen, J Confrey Science Education 91 (6), 948-966, 2007 | 116 | 2007 |