Cognitive tutors as research platforms: extending an established tutoring system for collaborative and metacognitive experimentation

Authors:
Erin Walker;Kenneth Koedinger;Bruce McLaren;Nikol Rummel
Affiliations:
Human Computer Interaction Institute, Carnegie Mellon University, Pittsburgh, PA;Human Computer Interaction Institute, Carnegie Mellon University, Pittsburgh, PA;Human Computer Interaction Institute, Carnegie Mellon University, Pittsburgh, PA;Department of Psychology, Albert-Ludwigs-Universitat Freiburg, Germany
Venue:
ITS'06 Proceedings of the 8th international conference on Intelligent Tutoring Systems
Year:
2006

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Abstract

Cognitive tutors have been shown to increase student learning in long-term classroom studies but would become even more effective if they provided collaborative support and metacognitive tutoring. Reconceptualizing an established tutoring system as a research platform to test different collaborative and metacognitive interventions would lead to gains in learning research. In this paper, we define a component-based architecture for such a platform, drawing from previous theoretical frameworks for tutoring systems. We then describe two practical implementation challenges not typically addressed by these frameworks. We detail our efforts to extend a cognitive tutor and evaluate our progress in terms of flexibility, control, and practicality.