Heddens, James W. <br/><br/>
Today's mathematics Part 1:  concepts and classroom methods / 
James W. Heddens and William R.Speer. 
 - Tenth edition. 
 - New York :  John Wiley,  ©2001. 
 - xii, 381 pages :  Illustrations ;  28 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780471387947 (Paperback) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Elementary)
<br/><br/><label>LC Class. No.: </label>QA135.5 HED