In the senior architecture class when they stop to do one of these exercises, I have them, as a team, write one answer out-one piece of paper with one answer on it. Then we'll go on, and they'll have two, three, four a period-and I collect those papers and grade them: ten points for right, eight points for not right, and everybody that's there gets that credit. So it's one paper per team, so it's no big deal grading it, but it's all the difference in the world in terms of their involvement in the process.                                               

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