Multi-level navigation for curriculum planning in intelligent tutoring systems

This paper presents and investigates the application of multi-level planning techniques, together with meta and micro level knowledge architecture model, in building the domain knowledge, planning and navigating the curriculum of an intelligent tutoring system (ITS). Curriculum issues have been important to ITS. In order to truly individualize instruction, ITS must be able to reason about the curriculum, understand its implications, and be able to dynamically redesign the curriculum. This leads to the dramatic increase in the information a planner handles. The multi-level planning, made possible by the meta and micro level knowledge model, efficiently manages large domain knowledge base, in that it largely eases the planning task both in complexity and in storage.