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If you have used or are using the subject text along with The Geometer's Sketchpad software and "patty paper" geometry techniques, I'd like to know how it's working for you .... especially if your prior teaching experiences were along the lines of the classical 2-column proof variety. About 3 weeks ago, after trying 1 quarter of classical 2-column proof geometry, I introduced all of the above to 10th graders at a private high school and I'm looking for anecdotal evidence .... on a larger scale than my small class .... that it works. I'd like to hear of both positive and negative experiences. Thanks much.
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