Halfield, Larry L. <br/><br/>
Investigating Mathematics:  An Interactive Approach. 

 - 1st./ed 
 - xii, 352p  illus., bibliography, glossary, index  26cm. 
<br/><br/><label>ISBN: </label>067513160x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Ohio--1994--hardbound