Mathematics Teacher (1989) Vol. 82, No. 2
VIATHEMATI CS TEACHER VOLUME ll2 NU~tBER 2 FEBRUARY 196'9 NATIONAL COUNCIL OF TEACHERS OF MATHEMATICS Geometry Algebra Computers 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
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