• Journal for Research in Mathematics Education (1992) Vol. 23, No. 4

    ISSN 0021-8251 JOURNAL FOR RESEARCH IN MATHEMATICS EDUCATION VOLUME 23 NUMBER 4 JULY 1992 JVational Council C?( Teachers qf Matbenzalics The Journal for Research in Matltematic.r Education, an official journal of the National Cllllncil of Teachers of Mathematics. is devoted to the interests of tenchers of mathematic~ a