Petit, Marjorie M. <br/><br/>
A focus on fractions :  bringing research to the classroom / 
Marjorie M. Petit, Robert E. Laird, Edwin L. Marsden. 
 - New York :  Routledge,  2010. 
 - xiv, 187 p. :  ill. ;  24 cm. 
 - Studies in mathematical thinking and learning. .
<br/><br/>Includes bibliographical references (p. 183-184) and index. 
<br/><br/><label>ISBN: </label>9780415801508 (hbk. : alk. paper)  RM457.62 9780415801515 (pbk. : alk. paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fractions--Study and teaching (Elementary)<br/>Fractions--Study and teaching (Middle school)<br/>Ratio and proportion--Study and teaching (Elementary)<br/>Ratio and proportion--Study and teaching (Middle school)<br/>Number concept in children