Arithmetic Teacher (1954) Vol. 1, No. 3

  • Arithmetic Teacher (1954) Vol. 1, No. 3

    The . . . Arithmeti~C . .-. Teacher _: ....... . . . ' :.-. . . . ..:.. ' . . . .: ~ . . . . . : .. :.>.r ,; .. : ... OCTOBER • 1954 Principles of Learning in Arithmetic GERTRUDE HILDRETH The Use of Crutches in Teaching JOHN R. CLARK Arithmetic on the March LAURA K. EADS That Inverted Divisor EDWI EAGLE THE ARITHMETIC