• Journal for Research in Mathematics Education (1975) Vol. 6, No. 1

    ISSN 0021-8251 JOURNAL FOR RESEARCH IN MATHEMATICS EDUCATION Measurement Concepts of First-and Second-Grade Students Thomas P. Carpenter Developmental Aspects of Children's Ability to Understand Mathematical Proof Frank K. Lester Logical Reasoning Ability and Teacher Verbal Behavior within the Mathematics Classroom Joh