Martinez, Joseph G. R. <br/><br/>
Teaching mathematics in elementary and middle school:   developing mathematical thinking/ 
Joseph G. R.  Martinez and Nancy C. Martinez 
 - New Jersey:   Pearson Merril Prentice Hall,   2007. 
 - xvi, 405p.:   ill. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0130549789 
<br/><br/><label>LC Class. No.: </label>QA 135.6 MAR 2007