A preliminary set of principles of judging the pedagogical utility of proposed grammar rules is offered. The goal is the inclusion in teaching materials of only those rules which are linguistically accurate, pedagogically sound, and relevant to specified instructional objectives. (Author)

In the fall of 1984, the Education Commission of the States (ECS) was awarded a grant from the U.S. Secretary of Education's Discretionary Fund to identify alternative state roles for improving instructional materials in mathematics. To help state leaders define an appropriate and effective role in upgrading these materials, ECS proposed first to…