Koll, Hilary <br/><br/>
Understanding shapes and measures ages 9-10 

 - London   A and C Black  c2008 
 - 64p.:  ill.  CD-ROOM  
 - Developing mathematics .
<br/><br/><label>ISBN: </label>9781408100554 
<br/><br/><label>Dewey Class. No.: </label>516.15