Proposes a neural network model for an intelligent tutoring system featuring adaptive external control of student pacing. An experiment was conducted, and students using adaptive external pacing experienced improved mastery learning and increased motivation for time management. Contains 66 references. (JKP)

A dynamic measure (number of examples needed to reach mastery) predicted transfer but not maintenance of a learned strategy for 64 third graders trained by scaffolded (n=32) or nonscaffolded (n=32) methods. A static measure had some predictive utility in the nonscaffolded condition. The potential superiority of scaffolded instruction is discussed.…