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Providing Feedback to Equation Entries in an Intelligent Tutoring System for Physics

Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1452)

Abstract

Andes, an intelligent tutoring system for Newtonian physics, provides an environment for students to solve quantitative physics problems. Andes provides immediate correct/incorrect feedback to each student entry during problem solving. When a student enters an equation, Andes must (1) determine quickly whether that equation is correct, and (2) provide helpful feedback indicating what is wrong with the student’s entry. To address the former, we match student equations against a pre-generated list of correct equations. To address the latter, we use the pre-generated equations to infer what equation the student may have been trying to enter, and generate hints based on the discrepancies. This paper describes the representation of equations and the procedures Andes uses to perform these tasks.

Keywords

Hash Table Primitive Equation Correct Equation Intelligent Tutoring System Student Model 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1998

Authors and Affiliations

  1. 1.Learning Research and Development CenterUniversity of PittsburghPittsburgh

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