There aren't too many videos here yet, but the ones we've seen are thought provoking. Check out one of the videos on Real Life Problem Solving. Mathematicians posed a question involving Eadweard Muybridge's film of a cat walking to groups of high school students in a summer problem solving program.
It's clear that work such as this takes time, and that this group of students has had the benefit of previous practice in working with each other and learning in this fashion, but it was impressive to see them move toward an understanding of calculus fundamentals.
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