• Journal for Research in Mathematics Education (1976) Vol. 7, No. 5

    1 I ISSN 0021-1251 JOURNAL FOR RESEARCH IN MATHEMATICS EDUCATION Cognitive Emphasis of Geometry Teachers' Questions Morton Friedman The Effects of Three Instructional Strategies on Problem-solving Behaviors in Secondary School Mathematics Kenneth E. Vos Comparative t:ffects of Three Sequences of Moves for Teaching Sele