This paper describes our experiences with sequence learning activities for intelligent 3-D practice environments. An intelligent practice environment offers learning by doing and learning by discovery in a realistic practice situation. A Knowledge-Based-System (KBS) improves learning opportunities with dynamic advice and feedback. An expert system monitors user interactions to provide dynamic advice for the expected sequence of user activities and updates objects in the 3-D world for the current state in the sequence. A prototype implementation is described for intelligent 3-dimensional (3-D) practice environments developed using a web browser, the Virtual Reality Modeling Language (VRML), JAVA, and an expert system. The VRML enabled web browser provides an interactive 3-D world where the user can learn and practice sequential tasks.
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