Developing mathematical understandings in the upper grades /

Brueckner, Leo J. 1890-1967.

Developing mathematical understandings in the upper grades / [by] Leo J. Brueckner, Foster E. Grossnickle [and] John Reckzeh. - Philadelphia, Winston 1957 - 567 p. illus. 22 cm.

57002762


Mathematics--Study and teaching (Secondary).

QA11 / .B848

510 / BRD 1957