The first time I used this, I asked a couple of questions and gave them time to work on something. I picked a random person from each team to go to the board and draw a free-bodied diagram on the board. I saw eight free-bodied diagrams, because there were eight teams and each one had a free-bodied diagram. What I had been used to was telling them the best way, in my view, to work that problem. Now I see eight diagrams the way they thought to work the problem. Now I have a chance of discussing each of those. I never had that before. So, that’s the real reason I’ve done it. I’ve seen an improvement in class; Certainly, [I’ve seen] an increase in interest and the involvement of the students.

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