Comments on: Interactive Exercises in ActiveMath: Cross-Domain Diagnosis and Automated Tutorial Strategies http://kwarc.info/blog/2008/09/19/interactive-exercises-in-activemath-cross-domain-diagnosis-and-automated-tutorial-strategies/ KWARC research group's blog Tue, 03 Nov 2009 11:03:14 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Christine http://kwarc.info/blog/2008/09/19/interactive-exercises-in-activemath-cross-domain-diagnosis-and-automated-tutorial-strategies/comment-page-1/#comment-260 Christine Mon, 22 Sep 2008 13:06:39 +0000 http://kwarc.info/blog/2008/09/19/interactive-exercises-in-activemath-cross-domain-diagnosis-and-automated-tutorial-strategies/#comment-260 George Goguadze does not agree with my comment: <blockquote>The exercise strategies cannot be created or modified by the author of exercises (in contrast to the approach by Johan Jeuring), but are created and maintained by the developer of the system.</blockquote> citing George: <em>I don't think that the strategies by Johan can be created and modified by the author of the exercises: for this the author has to possess a knowledge of at least context-free grammars, and then some technical skills to embed his new strategy in the system and so on. In this sense, programming generic strategies for ActiveMath is not really harder. Also, in the manually authored exercise in ActiveMath an author can also define his strategy manually by inserting feedback of needed type and providing transitions, such as transitions to loop back to the same step in case of failure, give the flag feedback or provide a solution. This strategy can be also modified by the author by modifying the exercise.</em> George Goguadze does not agree with my comment:

The exercise strategies cannot be created or modified by the author of exercises (in contrast to the approach by Johan Jeuring), but are created and maintained by the developer of the system.

citing George:

I don’t think that the strategies by Johan can be created and modified by the author of the exercises: for this the author has to possess a knowledge of at least context-free grammars, and then some technical skills to embed his new strategy in the system and so on.

In this sense, programming generic strategies for ActiveMath is not really harder.

Also, in the manually authored exercise in ActiveMath an author can also define his strategy manually by inserting feedback of needed type and providing transitions, such as transitions to loop back to the same step in case of failure, give the flag feedback or provide a solution. This strategy can be also modified by the author by modifying the exercise.

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