The implementation of "research-based" mathematics curricula is increasingly becoming a central element of mathematics education reform policies. Given the recent focus on grounding mathematics curriculum policies in research, it is important to understand precisely what it means for a curriculum to be research-based. Using the Curriculum Research…

Attempts to assess the impact of the NSF science curriculum projects have been generally unsatisfactory. Much of the NSF impact on science education will probably continue to defy quantification. Whether or not the new curricula achieve their goal of increasing scientific literacy among the public can only be evaluated over the lifetimes of the…