System dynamics has been shown to be an effective tool in managing the complexities of domains that involve complex structures. A framework is suggested for using system dynamic tools and technologies as the basis for constructing highly engaging learning environments. (Author/AEF)

Describes a study of fifth- and sixth-grade students that assessed the relationship of group size, exposure time, and attributions on children's performance on drill and practice of tutorial microcomputer tasks. Results of hierarchical regression are discussed and it is suggested that software designers focus on appropriate feedback to enhance…