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Branching features for LAMS V2.1
By: James Dalziel
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07/24/06 05:33 PM | |||
One of the many reasons for the rebuild of LAMS into V2 was to support sophisticated branching, grouping and data in/data out options. New grouping features made it into V2.0, but branching and data in/data out will need to wait until V2.1 (due around May/June 2007).
You can see an example of one type of branch we're considering for LAMS at the V2 wiki - http://lamsfoundation.org/2.0/images/Visualization_of_branching_grouping.jpg We're now getting into the detail of branching and data in/data out, and are keen to discuss how to expose this feature to users with members of the LAMS Community. Overall, do we have a few simple options for branching that anyone could use (eg. if you got 8/10 or above, go here, otherwise, go there), and then a more powerful set of features in an "Advanced" area that would require more technical skills? Do people have other ideas about how to expore this functionality? What are the more powerful features you want? For example, if a quiz had 10 questions, which represented 5 questions on two topics, do you want to be able to say something like: A different kind of branching might be a combination of groups and branching - group A goes down branch A, group B goes down branch B, etc. Another kind of branching might be based on forum postings - either number of postings or content. For example, students who posted 3 or more messages go down branch A, those who posted 2 or less, down branch b. More interestingly, you could try text analysis such as "those students who used the words X, Y or Z go down branch A, otherwise, go down branch B. In this case, the Forum tool is providing some structured data out of itself (data out) to be used by the branching tool to make a decision (data in). One of the key challenges will be how to describe data being handed between tools in a way that is simple, consistent, powerful and not too complex. A complex type of branching that combines grouping, branching and data in/out might be where you have a whole class forum, followed by two small group forums, and you want to split the talkative and quiet student equally across the two small group forums. In theory, you like to write a branching script that said something like: students who posted 3 or more posts to the whole class forum, randomly and equally split them into two groups, and send these groups to the forums; for students who posted 2 or less postings, randomly and equally split them also into two groups (could be into the same 2 groups above), and send these groups to the forums. The outcome would be an even distribution of talkative and quiet students across the two small group forums. This feature may be too hard to achieve for V2.1, but the combination of branching, grouping and data in/out could be very powerful for this type of use. We look forward to feedback on this, and lots of other ideas and suggestions! Posted by James Dalziel |
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