Haehi , Martha  <br/><br/>
Preparing for Algebra:by building the concepts 

 - NA 
 - New Jersey  1998 
 - ix,430 
<br/><br/><label>ISBN: </label>0-13-608878-3 
<br/><br/><label>Subjects--Personal Names: </label><br/>Mathematics
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humanities and Natural sciences