Computer Science – Computers and Society
Scientific paper
2010-12-27
EPTCS 44, 2010, pp. 21-34
Computer Science
Computers and Society
In Proceedings IWS 2010, arXiv:1012.5337
Scientific paper
10.4204/EPTCS.44.2
Mathematical learning environments give domain-specific and immediate feedback to students solving a mathematical exercise. Based on a language for specifying strategies, we have developed a feedback framework that automatically calculates semantically rich feedback. We offer this feedback functionality to mathematical learning environments via a set of web services. Feedback is only effective when it is precise and to the point. The tests we have performed give some confidence about the correctness of our feedback services. To increase confidence in our services, we explicitly specify the properties our feedback services should satisfy, and, if possible, prove them correct. For this, we give a formal description of the concepts used in our feedback framework services. The formalisation allows us to reason about these concepts, and to state a number of desired properties of the concepts. Our feedback services use exercise descriptions for their instances on domains such as logic, algebra, and linear algebra. We formulate requirements these domain descriptions should satisfy for the feedback services to react as expected.
Gerdes Alex
Heeren Bastiaan
Jeuring Johan
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