Spring 1980 © 1980 TABLE OF CONTENTS

Which Children Have Learning Disabilities in Mathematics William P. Dunlap and Alison House Brennan

Are We Traitors to Our Own Cause Leland F. Webb and Janie Rae Webb

Allocated Time, Engaged Time and Academic Learning Time in Elementary School Mathematics Instruction David C. Berliner

Research Within Reach: Elementary School Mathematics Sequence with Substance: The Elementary School Math Curriculum Evaluation in Mathematics Education Part One: Looking Beneath and Beyond the Tests Part Two: Mastery Learning in Elementary School Mathematics Estimation and Mental Arithmetic Mark J. Driscoll

The Effects of Sex and Test Length of Timed Tests Edward Burns and Dolores Granito