Mathematics Teacher (1978) Vol. 71, No. 9

  • Mathematics Teacher (1978) Vol. 71, No. 9

    AN OFFICIAL JOURNAL OF THE NATIONAL COUNCIL OF TEACHERS OF MATHEMATICS The Mathematics Teacher is devoted to the improvement of mathematics instruction in the junior high schools. senior high schools. two-year colleges, and teacher-education colleges. EDP.R.ESS Member of the: F.duca ll o n~ l Pre5s A~soc i :H ion of Am