Animated models explicate the procedure to solve a problem, as well as the rationale behind this procedure. For abstract cognitive processes, animations might be beneficial, especially when a supportive pedagogical agent provides explanations. This article argues that animated models can be an effective instructional method, provided that they are…

Effective collaboration in computer-mediated settings among spatially distributed people is a precondition for success in many new learning and working contexts but it is hard to achieve. We have developed two instructional approaches to improve collaboration in such settings by promoting people's capabilities to collaborate in a fruitful way and…

The authors discuss activities that help mentally handicapped adults emphasize thinking processes: observation questions, impact chart, solving a puzzling situation, and use of examples/nonexamples. The authors stress use of simple concepts, concrete objects, and realistic situations in developing intellectual skills. (CT)