• Journal for Research in Mathematics Education (1982) Vol. 13, No. 5

    ISSN 0021-8251 JOURNAL FOR RESEARCH IN MATHEMATICS EDUCATION Drawn Versus Verbal Formats for Mathematical Story Problems Judith Threadgill-Sowder and Larry Sowder The Importance of Spatial Visualization and Cognitive Development for Geometry Learning in Preservice Elementary Teachers Michael T. Battista, Grayson H . Wh