Arithmetic Teacher (1973) Vol. 20, No. 8

  • Arithmetic Teacher (1973) Vol. 20, No. 8

    NATIONAL COUNCIL OF TEACHERS OF MATHEMATICS VOLUME 20, NUMBER 8 DECEMBER 1973 THE ARITHMETIC TEACHER is an official journal of the National Council of Teachers of Mathematics. It is not a spokesman for the editorial staff or the Council but a forum for the exchange of ideas, where responsible contributors may evaluate