Clements, Douglas H <br/><br/>
Learning and teaching early math  : the learning trajectories approach 
Douglas H. Clements and Julie Sarama 
 - New York:  Routledge,   2014. 
 - xiv, 380p. 
<br/><br/><label>ISBN: </label>9780415828505 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics-Study and teaching (Early childhood)<br/>Educational psychology<br/>Child development<br/>Curriculum planning
<br/><br/><label>Dewey Class. No.: </label>372.7049  / CLL