Arithmetic Teacher (1975) Vol. 22, No. 5

  • Arithmetic Teacher (1975) Vol. 22, No. 5

    MAY 1971 NATIONAL COUNCIL OF TEACHERS OF MATHEMATICS 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 developments, share class