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Establishing properties of student's answers with STACK

Dr Chris Sangwin
School of Mathematics, University of Birmingham

Date: 10th February 2009 (Tuesday)
Time: 14:00 - 15:00
Venue: MB552
Abstract

This talk discusses the nature of mathematical assessment, and compares paper-based learning materials with current online assessments. In the light of this comparison we report on the implementation of a data structure for representing multi-part mathematical questions, which form part of the new version of the STACK system. STACK makes use of the computer algebra system Maxima for a variety of tasks, the most important of which is establishing mathematical properties of student's answers. The key difficulty is of increasing the richness of the question types so that they better reflect the needs of question authors without increasing the complexity to a point where they become effectively impossible to produce.

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