Mathematics Teacher (1988) Vol. 81, No. 7

  • Mathematics Teacher (1988) Vol. 81, No. 7

    THEMATI CS TEACHER VOLUME 81 NUMBER 7 OCTOBER 1988 NATIONAL COUNCIL OF TEACHERS OF MATHEMATICS Investigations Inflation History You could say the same thing about mathematics textboooks And you would be right. Because mathematics textbooks have to change constantly to stay "up to speed." Merrill mathematics textbooks s