Proposal to Extend and Test Cognitive Tutors

The final project was to assess the suitability of eye movements to provide information about the nature of interaction between student and tutor. In this project, we used the PAT algebra tuto that has been used at Carnegie-Mellon University. Here we showed that student eye movements could serve to predict when they were going to make errors and to diambiguate the interpretation of various actions. We also found that they informed us about when students actually processed help messages and error messages presented by the tutor. In his dissertation, Kevin Gluck identified a number of instructional opportunities afforded by eye movements. He also developed an ACT-R model of interaction with the tutor that predicted eye movements.