• Journal for Research in Mathematics Education (1987) Vol. 18, No. 4

    ISSN 0021-8251 JOURNAL FOR RESEARCH IN MATHEMATICS EDUCATION VOLUME 18 NUMBER 4 JULY 1987 National Council of Teachers of Mathe1natics A journal of the National Council of Teachers of Mathematics The journal for Researchin Mathematics Education is devoted to the interests of teachers of mathematics and mathematics educ