Early childhood mathematics education research: Learning trajectories for young children J Sarama, DH Clements Routledge, 2009 | 1981* | 2009 |

Learning and teaching early math: The learning trajectories approach DH Clements, J Sarama Routledge, 2014 | 1581 | 2014 |

Effects of a preschool mathematics curriculum: Summative research on the Building Blocks project DH Clements, J Sarama Journal for research in Mathematics Education 38 (2), 136-163, 2007 | 842 | 2007 |

Learning trajectories in mathematics education DH Clements, J Sarama Hypothetical Learning Trajectories, 81-90, 2012 | 795 | 2012 |

Young children's concepts of shape DH Clements, S Swaminathan, MAZ Hannibal, J Sarama Journal for research in Mathematics Education, 192-212, 1999 | 574 | 1999 |

Experimental evaluation of the effects of a research-based preschool mathematics curriculum DH Clements, J Sarama American educational research journal 45 (2), 443-494, 2008 | 571 | 2008 |

Engaging young children in mathematics: Standards for early childhood mathematics education DH Clements, J Sarama, AM DiBiase Routledge, 2003 | 550 | 2003 |

Young children and technology. D Clements | 460 | 1998 |

Early childhood mathematics intervention DH Clements, J Sarama Science 333 (6045), 968-970, 2011 | 431 | 2011 |

Mathematics learned by young children in an intervention based on learning trajectories: A large-scale cluster randomized trial DH Clements, J Sarama, ME Spitler, AA Lange, CB Wolfe Journal for Research in Mathematics Education 42 (2), 127-166, 2011 | 415 | 2011 |

Building blocks for early childhood mathematics J Sarama, DH Clements Early Childhood Research Quarterly 19 (1), 181-189, 2004 | 385 | 2004 |

Early childhood teacher education: The case of geometry DH Clements, J Sarama Journal of mathematics teacher education 14 (2), 133-148, 2011 | 316 | 2011 |

Which preschool mathematics competencies are most predictive of fifth grade achievement? T Nguyen, TW Watts, GJ Duncan, DH Clements, JS Sarama, C Wolfe, ... Early childhood research quarterly 36, 550-560, 2016 | 303 | 2016 |

Strip mining for gold: Research and policy in educational technology—A response to “Fool’s Gold” DH Clements, J Sarama AACE Review (formerly AACE Journal) 11 (1), 7-69, 2003 | 293 | 2003 |

“Concrete” computer manipulatives in mathematics education J Sarama, DH Clements Child Development Perspectives 3 (3), 145-150, 2009 | 264 | 2009 |

Logo and geometry DH Clements, MT Battista, J Sarama Journal for research in mathematics education. Monograph 10, i-177, 2001 | 231 | 2001 |

Learning executive function and early mathematics: Directions of causal relations DH Clements, J Sarama, C Germeroth Early Childhood Research Quarterly 36, 79-90, 2016 | 225 | 2016 |

Young children's composition of geometric figures: A learning trajectory DH Clements, DC Wilson, J Sarama Hypothetical Learning Trajectories, 163-184, 2012 | 212 | 2012 |

Longitudinal evaluation of a scale-up model for teaching mathematics with trajectories and technologies: Persistence of effects in the third year DH Clements, J Sarama, CB Wolfe, ME Spitler American Educational Research Journal 50 (4), 812-850, 2013 | 209 | 2013 |

Early Childhood Corner: The Role of Technology in Early Childhood Learning DH Clements, J Sarama Teaching children mathematics 8 (6), 340-343, 2002 | 207 | 2002 |