Determining difficulty of questions in intelligent tutoring systems

The object of this study is to model the level of a question difficulty by a differential equation at a pre-specified domain knowledge, to be used in an educational support system. For this purpose, we have developed an intelligent tutoring system for mathematics education. Intelligent Tutoring Systems are computer systems designed for improvement of learning and teaching processes in the domain knowledge. The developed system, which is called as MathITS, is based on conceptual map modeling.The Mathematica Kernel is used as an expert system and knowledge representation is based on LaTeX notation in MathITS. © The Turkish Online Journal of Educational Technology 2002.