Teaching modern mathematics in the elementary school /
Fehr, Howard F. 1901-.
Teaching modern mathematics in the elementary school / [by] Howard F. Fehr [and] Jo McKeeby Phillips. - 2d ed. - Reading, Mass. : Addison-Wesley Pub. Co., [1972] - xviii, 515 p. : illus. ; 24 cm. - Addison-Wesley series in education .
Bibliography: p. 503-505.
70167993 //r932
Mathematics--Study and teaching (Elementary)
QA135.5 QA 135.5 / .F4 1972 / .F4
372.7/3/044
Teaching modern mathematics in the elementary school / [by] Howard F. Fehr [and] Jo McKeeby Phillips. - 2d ed. - Reading, Mass. : Addison-Wesley Pub. Co., [1972] - xviii, 515 p. : illus. ; 24 cm. - Addison-Wesley series in education .
Bibliography: p. 503-505.
70167993 //r932
Mathematics--Study and teaching (Elementary)
QA135.5 QA 135.5 / .F4 1972 / .F4
372.7/3/044