• Journal for Research in Mathematics Education (1991) Vol. 22, No. 4

    ISSN 0021-8251 JOURNAL FOR RESEARCH IN ~THEMATICS EDUCATION VOLUME 22 NUMBER 4 JULY 1991 National Council of Teachers of Mathematics The juumolfor Research in Mathematics Education, an official journal of the National Council of Teachers of Mathematics. is devoted to the interests of teachers of mathematics and mathema