A number of individualized approaches to student learning are reviewed: Keller plan, refined linear model, variable route model, modular learning model, and independent study. Each successive approach offers students an increasingly wider degree of choice to determine goals and the means of achieving them. (Author/MLW)

The central question for this study is whether the improvement of group instruction can increase achievement to the same level as or even higher than that produced by the feedback-corrective process used in mastery learning. It is hoped that the findings can be of interest to developing countries. (RL)