Lerch, Harold H., <br/><br/>
Active learning experiences for teaching elementary school mathematic 
Harold H. Lerch. 
 - Boston  Hughton Mifflin  c1981. 
 - 461 p.  ill. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>ISBN: </label>0395297698 
<br/><br/><label>LCCN: </label>pcb00000194 //r92 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Elementary)<br/>Active learning
<br/><br/><label>LC Class. No.: </label>QA135.5  / .L45 
<br/><br/><label>Dewey Class. No.: </label>372.7