Driscoll, Mark J. <br/><br/>
Fostering algebraic thinking  a guide for teachers, grades 6-10 
Mark J Driscoll 
 - ed. 
 - [S.l.]  Heinemann  1999 
 - viii, 168 p. 
<br/><br/><label>ISBN: </label>0325001545 (acidfree paper)