Mathematics Teacher (1968) Vol. 61, No. 2

  • Mathematics Teacher (1968) Vol. 61, No. 2

    NATIONAL COUNCIL OF TEACHERS OF MATHEMATICS FEBRUARY 1968 VOLU:\IE LXI, ~U:\1138R2 A Tiny Treasury of Tessellations Ernest R. Ranucci Dressing Up Mathematics J ean J . Pedersen Rotations, Angles, and Trigonometry Robert Troyer Assessing the Progress of Education in Mathematics ./ack C. JI erwin and JI mtin ./. Higgins