Thorpe, Cleata B. <br/><br/>
Teaching elementary arithmetic. 

 - New York  Harper  1962. 
 - 412 p.  illus. 
 - Harper's series on teaching .
<br/><br/>Includes bibliography. 
<br/><br/><label>LCCN: </label>62007142 /L 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic--Study and teaching (Elementary)
<br/><br/><label>LC Class. No.: </label>QA135  / .T56 
<br/><br/><label>Dewey Class. No.: </label>372.7