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>Dewey Class. No.: </label>510.7  / S677t