Sobel, Max A. <br/><br/>
Teaching mathematics :  a sourcebook of aids, activities, and strategies / 
Max A. Sobel and Evan M. Maletsky. 
 - 2nd ed. 
 - Englewood Cliffs, N.J. :  Prentice-Hall,  c1988. 
 - xi, 291 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0138941556 0138941483 (pbk.) 
<br/><br/><label>LCCN: </label>87010341  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Secondary)
<br/><br/><label>LC Class. No.: </label>QA11  / .So1 1988 
<br/><br/><label>Dewey Class. No.: </label>510/.7/12