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Open community authoring of worked example problems

Open collaborative authoring systems such as Wikipedia are growing in use and impact. This research examines how to create a collaborative authoring community for educational resources. We describe and evaluate a novel tool for community authoring of worked examples, in the task of making instruction for a specific math skill. Participants were professional teachers (math and non-math) and amateurs. We find that while there are differences by teaching status, all three groups made contributions of worth.