Clements, Douglas H. <br/><br/>
Learning and teaching early math :     the learning trajectories approach /   
Douglas H. Clements, Julie Sarama. 
 - New York :     Routledge, Taylor & Francis Group,     2014. 
 - xiv, 380 p. :     ill. ;     26 cm 
<br/><br/>Includes bibliographical references (pages 334-362) and index. 
<br/><br/><label>ISBN: </label>9780415828505 (pbk) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics  -- Study and teaching (Early childhood)<br/>Educational psychology.<br/>Child development.
<br/><br/><label>LC Class. No.: </label>QA135.6    /  .C55 2014