Kramer, Klaas,  1916- <br/><br/>
Teaching elementary school mathematics/ 
Klaas Kramer. 
 - 2nd ed. 
 - Boston  Allyn and Bacon  1970 
 - viii, 440 p. :  illus., facsims. ;  24 cm. 
<br/><br/> First ed. published in 1966 under title: The teaching of elementary school mathematics. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>73-102754 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Elementary)