Day 137: Application of Similar Triangles

Since Fawn’s similar triangle lesson was so beautifully written here, I pretty much printed out her blog post and ran the class verbatim. I quickly realized that my students are not as enthusiastic problems solvers as Fawn’s and it’s because I don’t let them struggle enough. I’m working on it. They struggle a little, but at some point I jump in, and then kick myself later. This became evident to me as I compared my students reactions to Fawn’s descriptions. I got more of the “YOU’RE NOT HELPING ME!!” “It’s your job to help, you are not doing your job” types of comments. I stopped the class, we had a good group discussion on how they could be convincing that they found the exact point to hit the ball in order for it to go in the hole. They got back to work. They need more time. Some students figured out what to do right away: photo 1 (1) Others really were a mess. I am learning a lot, at least. We will continue on Monday. I’m sure it will be a success. photo 2 photo 3

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