Uncertainty is handled by the Bayesian network approach.
Thus the modelling task for the learner consists of creating a Bayesian network for the problem at hand. After that, we will describe how qualitative and quantitative information will be acquired. Then we will describe how to extend these knowledge acquisition approaches to dialogues. An Intelligent Problem Solving Environment for Designing Explanation Models and for Diagnostic Reasoning in Probabilistic Domains, paper accepted for Intelligent Tutoring Systems ITS 96, Montreal, June 12 - 14, 1996.