Worthington, Maulfry <br/><br/>
Children's mathematics :  making marks, making meaning / 
Maulfry Worthington and Elizabeth Carruthers 
 - London :  Paul Chapman Pub.,  2003 
 - xi, 242 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references (p. 228-236) and indexes 
<br/><br/><label>ISBN: </label>0761940707 (pbk.)  RM146.93 0761940693 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Elementary)--Great Britain