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Todd Feitelson π
@toddf9
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9-12 Math Teacher. Algebra 2, AP Calculus, Geometry. Wolfram Innovator Award 2019. Fun Fact: My Dad was Martin Gardnerβs accountant. He/Him #MTBoS
Millbrook, NY
Joined March 2009
@mrdardy @KarenCampe Thatβs where I stopped reading for about a year. But my daughter encouraged me to finish it so I did and Iβm glad I did.
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@mrdardy @KarenCampe Yeah, it was the same with me I think, but I coach, love and play hockey. That made me uncomfortable too. In the end, though, I felt like the book shared my sensibilities. Iβd be curious what you think if you make it through the book.
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@mrdardy @KarenCampe I actually stopped reading it at some point, maybe where you are. It was kind of upsetting and seemed like it might move in a clichΓ© direction. But - I came back to it, and I actually found it dealt with some difficult issues pretty well. The sequel is on my list for this summer
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@suffolkmaths Fine question. Hereβs a summary in a tweet. Glad to add more if needed.
@shirky17 @mathhombre Yes. Recorded video. Projected and marked ball at three spots. Projected @desmos grid on board. Used coordinates to find a,b and c (solved system using matrices). Plotted and traced equation. Replayed video. Voila! #LessonInATweet
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@DavidKButlerUoA @jamestanton Intermediate Value theorem! Related to one of my favorites: at any given moment there are two antipodal points on the globe with the same temperature.
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@joshuazucker @KarenCampe @mrdardy I agree - it's different than "the set of all points where the function is increasing" (which is not something we typically ask about.) I really, really like the subtlety in these definitions - I think they're kind of beautiful. And yet, very unimportant at HS level at least.
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