• Journal for Research in Mathematics Education (1988) Vol. 19, No. 1

    ISSN 0021 -8251 JOURNAL FOR RESEARCH IN MATHEMATICS EDUCATION VOLUME 19 NUMBER 1 JANUARY 1988 National Council of Teachers of Mathematics A Journal of the National Council of Teachers of Mathematics The j ournal for Research in Mathematics Educatiorr IS devoted to the intereStS of teachers of mathematics and mathematic