Esler, William K. <br/><br/>
Teaching elementary science :  a full spectrum science instruction approach / 
William K. Esler, Mary K. Esler 
 - 8th ed. 
 - Belmont, Calif. :  Wadsworth/Thomson Learning,  2001 
 - xiii, 616 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0534508340  RM333.46 
<br/><br/><label>LCCN: </label>00-040411 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching (Elementary)