Knowledge sources for an intelligent algebra tutor
William S. Bregar, Arthur M. Farley, Garland James Bayley · Computational Intelligence · 1986
The focus of this paper is on the underlying knowledge base for an intelligent tutorial system for high‐school algebra problems. We present a model of problem solving flexible enough to account for a variety of problem‐solving behaviors and general enough to allow new problem domains to be defined easily. The model is based upon the analysis of protocols between students and expert tutors. We show how student errors can be monitored and remediated using the model, and we provide an approach to understanding problem difficulty that can be used to generate challenging problems and also provides a mechanism for planning their solution.