Fall Edition 2001 © 2001 TABLE OF CONTENTS

Truth Value of Mathematical Statements: Can Fuzzy Logic Illustrate Students' Decision Making? Rina Zazkis a & Bat-Sheva Levy

Question-and Diagram-Mediated Mathematical Activity: A Case in a Fourth Grade Classroom Adalira Saenz-Ludlow & Cathy Walgamuth

Patterns in Children's Drawings and Actions While Constructing Nets of Solids: The Case of Conical Surfaces Despina Potari & Vassiliki Spiliotopoulou