TY  - BOOK
AU  - Clements,Douglas H.
AU  - Sarama,Julie
TI  - Learning and teaching early math :  :  the learning trajectories approach /  
SN  - 9780415828505 (pbk)
AV  - QA135.6    .C55 2014
PY  - 2014///
CY  - New York :  
PB  -  Routledge, Taylor & Francis Group,  
KW  - Mathematics
KW  -  Study and teaching (Early childhood)
KW  - Educational psychology
KW  - Child development
N1  - Includes bibliographical references (pages 334-362) and index
ER  -