Education research has identified strategic flexibility as an important aspect of math proficiency and learning. This aspect of student learning has been largely ignored by Intelligent Tutoring Systems (ITSs). In the current study, we demonstrate how Hidden Markov Modeling can be used to identify groups of students who use similar strategies during tutoring and relate these findings to a measure of strategic flexibility. We use these results to explore how strategy use is expressed in an ITS and consider how tutoring systems could integrate a measure of strategy use to improve learning.

Tenison, C., & MacLellan, C. J. (2014, June). Modeling Strategy Use in an Intelligent Tutoring System: Implications for Strategic Flexibility. In Proceedings of the 12th International Intelligent Tutoring Systems Conference, Honolulu, HI.(Paper available here)

Presented work at the 12th International Intelligent Tutoring Systems Conference, Program for Interdisciplinary Research on Education Edbag Series, and for a research group at CarnegieLearning software company

  • In-vivo study of 8th and 9th grade students
  • Hidden Markov modeling
  • K-mediods clustering
  • Additive factors modeling
  • Christopher J. MacLellan