This study describes the empirical test of a theoretical model of knowledge building with wikis that was recently introduced by Cress and Kimmerle. The underlying assumption of this model is that both learning (as an internal, individual process) and knowledge building (as the creation of public knowledge) are based on the interplay between an…

This project was designed to test Mayer's multimedia theory in an elementary school to improve students' mathematics learning for low-income children. The study designed and developed two multimedia mathematics experiments in 3rd grade: 9's multiplication experiment and geometric solids experiment. The two experimental lessons were implemented in…

The story of the national evaluation of the Follow Through program mirrors the difficulties in trying to evaluate a complex social program that changed its community service orientation to a strategy of planned variation of early childhood programs. (Author/MLF)

Abt Associates, the firm responsible for the primary analysis of the Follow Through experiment, summarize the findings. Their clearest finding indicates that local circumstances, attitudes, and activities unmeasured by evaluation have much more to do with the effectiveness of Follow Through models, without exception, than do their theoretical…