Heddens, James W.,  1925- <br/><br/>
Today's mathematics. 

 - 9th ed. /  James W. Heddens, William R. Speer. 
 - Upper Saddle River, N.J. :  Merrill,  c1997. 
 - 2 v. :  ill. (some col.) ;  28 cm. +  2 computer disks (3 1/2 in.) 
<br/><br/>Includes bibliographical references and indexes. 
<br/><br/>pt. 1. Concepts and classroom methods -- pt. 2. Activities and instructional ideas. 
<br/><br/><br/>System requirements for accompanying computer disks: IBM PC or compatible; MS-DOS. 
<br/><br/><label>ISBN: </label>0134933621 (set) 0135890039 (pt. 1) 013589011X (pt. 2) 
<br/><br/><label>LCCN: </label>96028398 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Elementary)
<br/><br/><label>LC Class. No.: </label>QA135.5  / .H42 1997 
<br/><br/><label>Dewey Class. No.: </label>372.7