In 2 separate studies, we found that college-age students learned more when they collaboratively watched tutorial dialogue-videos than lecture-style monologue-videos. In fact, they can learn as well as the tutees in the dialogue-videos. These results replicate similar findings in the literature showing the advantage of dialogue-videos even when…

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)

Presents a prototype authoring tool for interactive educational software called Investigate and Decide Learning Environments (IDLE-Tool). Introduces IDLE-Tool as the task model around which the tool is based. A model of the authoring process called Guided Case Adaptation is offered as an approach to employing models and an exemplar to effectively…

Describes tools for authoring all aspects of a knowledge-based tutor system: domain model, teaching strategies, student model, and learning environment. Discusses a number of design issues and design tradeoffs that are involved in building intelligent tutoring systems (ITS). (Author/CCM)