Teaching arithmetic /
Morton, R. L.
Teaching arithmetic / R. L. Morton. - 1st ed. - Washington, D. C. : National Education Association, 1953. - 33 p. : ill. ; 22 cm. - What Research says to the Teacher ; 2 .
Includes bibliographical references (p. 32-33).
Arithmetic -- Study and teaching.
372.7
Teaching arithmetic / R. L. Morton. - 1st ed. - Washington, D. C. : National Education Association, 1953. - 33 p. : ill. ; 22 cm. - What Research says to the Teacher ; 2 .
Includes bibliographical references (p. 32-33).
Arithmetic -- Study and teaching.
372.7