Krajcik, Joseph S. <br/><br/>
Teaching science in elementary and middle school : a project-based approach  
Joseph S. Krajcik and Charlene Czerniak 
 - 3rd ed. 
 - New York  Routledge  2007 
 - xviii,516p.:ill.;  25cm. 
<br/><br/> Library has 4th ed also. 
<br/><br/><label>ISBN: </label>0-8058-6206-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science-Study and teaching (Elementary)-Methodology<br/>Science-Study and teaching (Middle school)-Methodology
<br/><br/><label>Dewey Class. No.: </label>372.35  / KRA