Billstein, Rick. <br/><br/>
A problem solving approach to mathematics for elementary school teachers/ 
Rick Billstein, Shlomo Libeskind, Johnny W. Lott. 
 - Third Edition.  
 - xviii, 782 pages:  illustrations, ports;  24 cm. 
<br/><br/> Ill. on lining papers. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0805308652 
<br/><br/><label>LCCN: </label>86023219  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Elementary)<br/>Problem solving.
<br/><br/><label>LC Class. No.: </label>QA135.5  / .B49 1987 
<br/><br/><label>Dewey Class. No.: </label>372.7