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NBC has several Olympic science videos in which students can learn about physics, motion, energy, biology, chemistry and math.  Videos include Slapshot Physics, Aerial Physics, Figure Skating, Snowboarding, Alpine Skiing, Skates, Mathletes, Bobsled, Motion Inside the Body, Short Track, Modern Skis, Suit Up, Curling, Ski Jumping, Safety Gear, and The Internal Athlete.  These videos walk students through the actual science that is taking place in the winter games.

e five places that students can find free mathematics tutorial videos.

Introducing: A Better Calculator Launch the Calculator! If math is the universal language, the calculator is our interpreter—and it hasn't improved in 20 years. Until now. We set out to reimagine the graphing calculator from the ground up, building on the best technologies available. This is beautiful, powerful, intuitive math that lives in your browser. Graph multiple functions in vivid color and watch them update as you type. Save your work to the cloud or share it with friends. Transform your computer or tablet into a math engine. This is just the beginning—and it's all completely free. Education is too important to be dominated by expensive, inaccessible, outdated technology. A Better Calculator is here. Spread the word!

I’ll let the video do the talking here.