Intelligent Tutoring Systems (ITSs) that employ a model-tracing methodology have consistently shown their effectiveness. However, what evidently makes these tutors effective, the cognitive model embedded within them, has traditionally been difficult to create, requiring great expertise and time, both of which come at a cost. Furthermore, an…

Describes two systems that incorporate tutoring elements into pre-existing software packages: one supporting Geometer's Sketchpad and the other Microsoft Excel. An analysis of their similarities and differences provides a foundation for standardizing the components of learning environments, simplifying their creation and increasing the power of…

Argues that a focus on building an authoring tool for a complete learning environment is misplaced. Analyzes the task of authoring a commercial educational system. Describes the Visual Translator, an authoring tool written specifically for this purpose. (Author/CCM)