Heddens, James W. <br/><br/>
Today's mathematics part 1 : concepts and classroom mathematics / James W. Heddens and William R. Speer 

 - Englewood Cliffs, New Jersey  Prentice-Hall, Inc.  c1995. 
 - 318 p. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/>
<br/><br/><label>ISBN: </label>0-02-352946-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Elementary).
<br/><br/><label>Dewey Class. No.: </label>Cir 372.7 H3582 1995 pt.1