I worked with a middle school staff in Tucson this week (Go Unicorns!) that was grappling with the difference between activity-based learning and project-based learning. Through discussion we came closer to an operational definition of each, which would help them sort and improve their project ideas. They would like to be able to say, for example, "No, I think that's more of an activity, it's not really a project. A project would be/have..."
Would you throw in your two cents? Utterback MS (amazing place) and I thank you!