A research companion to Principles and standards for school mathematics / 
edited by Jeremy Kilpatrick, W. Gary Martin, Deborah Schifter. 
 - Reston, VA :  National Council of Teachers of Mathematics,  c2003. 
 - x, 413 p. :  ill. ;  28 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9780873535373 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching--Standards--United States.
<br/><br/><label>Dewey Class. No.: </label>510.71073  / RES 2003