Today's mathematics

Heddens, James W.

Today's mathematics a guide to concepts and methods in elementary school mathematics James W. Heddens. - 3d ed. - Palo Alto, Calif. Science Research Associates c1974. - ix, 566 p. ill.

920901

Includes bibliographies and index.

057418600X

74026511


Mathematics--Study and teaching (Elementary)

QA135.5 / .H42 1974

372.7/3
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