I just started using Dabbleboard with my students to help them think about how they are going to organize their research. Never before have I had students so excited to do a pre-research activity! I almost had to pinch myself at the positive student response.
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Also, the map gives them a structure to use in their note-taking. Anything that helps students in their organization cannot be a bad thing:)
There are a lot of other great ways Dabbleboard could be used. I think it would be great for students to create charts comparing two topics/ideas. Here is an example I created on Dabbleboard comparing McCain and Obama.