Mathematics Teacher (1967) Vol. 60, No. 2

  • Mathematics Teacher (1967) Vol. 60, No. 2

    NATIONAL COUNCIL OF TEACHERS OF MATHEMATICS FEBRUARY 1967 VOLUME LX, NUlllBER 2 The Modern Approach to Elementary Geometry Oswald Veblen Revolution, Rigor, and Rigor Mortis StephenS. Willoughby Auxiliary Lines and Ratios Donald W. Stover The Direction of Sunset R. F. Graesser Organizing a Mathematics Laboratory Raymond