کتاب های Douglas H. Clements

Engaging Young Children in Mathematics: Standards for Early Childhood Mathematics Education
Douglas H. Clements, 2004
Learning and Teaching Early Math: The Learning Trajectories Approach (Studies in Mathematical Thinking)
Douglas H. Clements, 2009
Logo and geometry (Journal for research in mathematics education)
Douglas H Clements, 2001
Engaging Young Children in Mathematics: Standards for Early Childhood Mathematics Education
Douglas H. Clements, 2003