Winter Edition 1998 © 1998 TABLE OF CONTENTS

Introduction Jean Schmittau

Focusing on Focus William R. Speer

The Nature, Design and Promise of General Systems Research Applied to Learning and Instruction William R. Speer

A Research Context for Diagnostic and Prescriptive Mathematics A. Edward Uprichard and Jon Engelhardt

Diagnosis:  What is the Current Agenda? Mahesh C. Sharma

Research Council Report: Significant Ideas in Diagnosis Robert G. Underhill, Francis Fennell, Jon Engelhardt, George W. Bright, Grace Burton, and Edward Uprichard

A Timely Piece for Yesterday and Today A. Edward Uprichard

Multiplicative and Divsional Schemes Leslie P. Steffe and Paul Cobb

Children's Thinking as a Basis for Communicating with Researchers and Practitioners George W. Bright

Rational Number Learning Aids: Transfer From Continuous Models to Discrete Models Merlyn J. Behr, Ipke Wachsmuth, and Thomas Post

The Value of International Perspectives in Mathematics Learning Jean Schmittau

Psychological Foundations For an Introductory Course of Mathematics for Six Year Olds A.L. Venger and S.F. Gorbov