Butler, Charles Henry, 1894-  Butler, Charles Henry, 1894- <br/><br/>
The teaching of secondary mathematics / 
[by] Charles S. Butler [and] F. Lynwood Wren. 
 - 4th ed. 
 - New York :  McGraw-Hill,  [1965] 
 - Curriculum and methods in education McGraw-Hill series in education .
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>64025596 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics -- Study and teaching (Secondary)--Mathematics -- Study and teaching (Secondary)