Serra, Michael <br/><br/>
Discovering geometry :  an investigative approach / 
Michael Serra. 
 - 3rd ed. 
 - Emeryville, CA :  Key Curriculum Press,  c2003. 
 - xiv, 767 pages : chiefly colored, illustrations 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9781559534598 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry--Study and teaching (Secondary)