Langer, Georgea M. <br/><br/>
Collaborative analysis of student work :  improving teaching and learning / 
Georgea M. Langer, Amy B. Colton, Loretta S. Goff 
<br/><br/> College of Education  Bachelor of Elementary Education 
<br/><br/><label>ISBN: </label>0-87120-784-2 
<br/><br/><label>Dewey Class. No.: </label>371.26 L26