The teaching of secondary mathematics /
Butler, Charles Henry, 1894-
The teaching of secondary mathematics / Charles H. Butler and F. Lynwood Wren - 4th ed. - New York : McGraw-Hill, 1970 - vi, 613 p. : ill. ; 23 cm.
Includes bibliographies.
Mathematics--Study and teaching (Secondary)
The teaching of secondary mathematics / Charles H. Butler and F. Lynwood Wren - 4th ed. - New York : McGraw-Hill, 1970 - vi, 613 p. : ill. ; 23 cm.
Includes bibliographies.
Mathematics--Study and teaching (Secondary)
