The growth of mathematical ideas, grades K-12. 

 - Washington :    The National Council of Teachers,    1959. 
 - x, 507 p. :    ill., diagrs. ;    24 cm. 
<br/><br/>Includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Mathematics -- Study and teaching.
<br/><br/><label>Dewey Class. No.: </label>510