Fass, Arnold L. <br/><br/>
Unified mathematics  content, methods, materials for elementary school teachers 
Arnold L. Fass, Claire M. Newman. 
 - Lexington, Mass.  Heath  [1975] 
 - xii, 464 p.  ill.  25 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 447-452. 
<br/><br/><label>ISBN: </label>0669893595 
<br/><br/><label>LCCN: </label>74010348 //r85 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Elementary)
<br/><br/><label>LC Class. No.: </label>QA135.5  / .F35 
<br/><br/><label>Dewey Class. No.: </label>510