петък, 2 януари 2015 г.

Khan Academy

Khan Academy mission is to provide a free, world‑class education for anyone, anywhere. A personalized learning resource for all ages. You re joining a global classroom: Millions of students from all over the world, each with their own unique story, learn at their own pace on Khan Academy every single day. We have video lessons translated into almost 40 languages and counting in addition to the Spanish, French, and Brazilian Portuguese versions of our site: https://www.khanacademy.org/about or ckick here. Look at Calculating Average Velocity or Speed: https://www.youtube.com/watch?v=oRKxmXwLvUU Solving for Time: https://www.youtube.com/watch?v=awzOvyMKeMA Displacement from Time and Velocity Example: https://www.youtube.com/watch?v=lQ-dvt3V4yQ

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