Designing effective mathematics instruction :  a direct instruction approach / 
Marcy Stein ... [et al.] 
 - 4th ed. 
 - Upper Saddle River, NJ :  Pearson/Merrill Prentice Hall,  c2006 
 - xxiii, 500 p. :  ill. ;  28 cm. 
<br/><br/>Includes bibliographical references (p. 490-492) and index 
<br/><br/><label>ISBN: </label>0131192442 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Elementary)