Cognitive simulations are runnable computer programs for modeling human cognitive activities. A case study is reported where expert systems were used as a formalism for modeling metacognitive processes in a seminar. Building cognitive simulations engages intensive introspection, ownership and meaning making in learners who build them. (Author/AEF)

Compares results of giving undergraduate students actual instructor feedback, computer-simulated instructor feedback, or no feedback. There were advantages to giving actual instructor-supplied feedback for exam performance, in-class responsiveness, and attitudes toward the instructor and other students. (JMV)