Mathematics Teacher (1971) Vol. 64, No. 3

  • Mathematics Teacher (1971) Vol. 64, No. 3

    NATIONAL COUNCIL OF TEACHERS OF MATHEMATICS MARCH 1971 VOLUME LXIV, NUMBER 3 National Assessment in Mathematics Dale I . Foreman and William A. Mehrens A Form of Proof ATthuT E . Hallerberg Truth-Table Models of Mendelian Trait Segregation Theodore H. MacDonald A Problem, a Solution, and Some Commentary Herbert I . Gro