Today's mathematics : concepts and methods in elementary school mathematics.
Heddens, James W., 1925-
Today's mathematics : concepts and methods in elementary school mathematics. James W. Heddens, William R. Speer. - 7th ed. - New York : Toronto : New York : Macmillan ; Maxwell Macmillan Canada ; Maxwell Macmillan International, c1992. - xi, 656 p. : ill. ; 28 cm.
Includes bibliographical references and index.
0023529334 (pbk.) 9780023529337
Mathematics--Study and teaching (Elementary)
QA135.6 / .K73 1992
372.7 / HJT
Today's mathematics : concepts and methods in elementary school mathematics. James W. Heddens, William R. Speer. - 7th ed. - New York : Toronto : New York : Macmillan ; Maxwell Macmillan Canada ; Maxwell Macmillan International, c1992. - xi, 656 p. : ill. ; 28 cm.
Includes bibliographical references and index.
0023529334 (pbk.) 9780023529337
Mathematics--Study and teaching (Elementary)
QA135.6 / .K73 1992
372.7 / HJT