Children discover arithmetic : an introduction to structural arithmetic /
Stern, Catherine 1894-
Children discover arithmetic : an introduction to structural arithmetic / Catherine Stern ; foreword by Marguerite Lehr. - London: George G. Harrap, 1953. - xxiv, 295 p. : ill. ; 22 cm.
Includes bibliography (p. 291-292).
Arithmetic--Study and teaching
372.72
Children discover arithmetic : an introduction to structural arithmetic / Catherine Stern ; foreword by Marguerite Lehr. - London: George G. Harrap, 1953. - xxiv, 295 p. : ill. ; 22 cm.
Includes bibliography (p. 291-292).
Arithmetic--Study and teaching
372.72