• Journal for Research in Mathematics Education (1973) Vol. 4, No. 4

    JOURNAL FOR RESEARCH IN MATHEMATICS EDUCATION VOL.4, NO.4 NOVEMBER 1973 THE NATIONAL COUNCIL OF TEACHERS OF MATHEMATICS A Journal of the National Council of Teachers of Mathematics The J oumol fo r R t'Searclt in Mathematic.\ Education is devoted to the interests of teachers of mathematics and mathematics education at