Discovering advanced algebra :  an investigative approach. 

 - Emeryville :  Key Curriculum Press,  c2004. 
 - vii, 215 p. :  ill. ;  29 cm. 
<br/><br/><label>ISBN: </label>1559536144 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra.<br/>Algebra--Study and teaching (Secondary)