• Journal for Research in Mathematics Education (1976) Vol. 7, No. 3

    ISSN 0021-8251 JOURNAL FOR RESEARCH IN MATHEMATICS EDUCATION An Analysis of the Fraction Concept into a Hierarchy of Selected Subconcepts and the Testina of the Hierarchical Dependencies Carol F. Novillts A Comparison of Two Methods of Column Addition Grayson H. Wheatley Factors Associated with Third and Fourth-Grade C