Robust simulator: a method of simulating learners' erroneous equations for making error-based simulation

Authors:
Tomoya Horiguchi;Tsukasa Hirashima
Affiliations:
Faculty of Maritime Sciences, Kobe University, Kobe, Hyogo, Japan;Department of Information Engineering, Hiroshima University, Hiroshima, Japan
Venue:
ITS'06 Proceedings of the 8th international conference on Intelligent Tutoring Systems
Year:
2006

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Abstract

Error-based Simulation (EBS) is a framework for assisting a learner to become aware of his errors. It makes a simulation based on his erroneous hypothesis to show what unreasonable phenomena would occur if his hypothesis were correct, which has been proved effective in causing cognitive conflict. In making EBS, it is necessary (1) to make a simulation by dealing with a set of inconsistent constraints because erroneous hypotheses often contradict the correct knowledge, and (2) to estimate the ‘unreasonableness' of phenomena in a simulation because it must be recognized as ‘unreasonable.' Since the method used in previous EBS-systems was very domain-dependent, this paper describes a method for making EBS based on any inconsistent simultaneous equations by using TMS. It also describes a set of general heuristics to estimate the ‘unreasonableness' of physical phenomena. By using these, a prototype EBS-system was implemented and examples of how it works are described.