Proactive modelling and the development of coaching strategies in geometry
This paper discusses three extensions to a geometry coach. The student model has been enhanced to make it interactive: either the student or the modeller can initiate exchanges about the state of the student's knowledge. The modeller also tracks all of the historical changes in the student model by recording the model state every time a change occurs. Finally, the paper discusses problem solving strategies that the coach uses to approach congruence proofs from many angles. These include analogy, construction, problem decomposition and animation, experimentation, backward chaining, and brainstorming.
KeywordsIntelligent Tutor System Proof Generation Student Model Problem Decomposition History Link
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