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Featured Videos
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Not Right For WatchKnowLearn
Ages: 16 - 18
3177 Views:
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Lewin introduces velocity and acceleration to his students first by drawing graphs on his famous chalk boards and then by using an awesome demonstration. He actually fires a gun in his class and measures the velocity of the bullet! This video is prob...ably too much to show high school students in class, but it's great for a teacher who needs to brush up on velocity and acceleration. (51:08)
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July 31, 2012 at 04:15 PM
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Not Right For WatchKnowLearn
Ages: 8 - 15
6312 Views:
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This video shows The Seven Wonders of the World: The Pyramid at Chichén Itzá (before 800 A.D.) Yucatan Peninsula, Mexico, Christ the Redeemer (1931) Rio de Janeiro, Brazil, The Great Wall of China (220 B.C and 1368 - 1644 A.D.) China, Machu Picchu (...1460-1470), Peru, Petra (9 B.C. - 40 A.D.), Jordan, the Roman Colosseum (70 - 82 A.D.) Rome, Italy, and The Taj Mahal (1630 A.D.) Agra, India. Video is of good quality and shows pictures of the Seven Wonders of the World set to music. Video is appropriate for students of any age.
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August 13, 2009 at 05:24 AM
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Not Right For WatchKnowLearn
Ages: 8 - 14
6137 Views:
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This song reviews the seven times table and shows some strategies to help students determine multiples based on the combination of products they already know. (03:26)
May 10, 2012 at 09:59 AM
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Not Right For WatchKnowLearn
Ages: 13 - 18
10695 Views:
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Three simple tips for integrating direct quotations into your research work--academic essays, research papers, theses, dissertations. (02:52)
November 20, 2010 at 08:47 AM
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Not Right For WatchKnowLearn
Ages: 10 - 18
3014 Views:
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So, what is fire, exactly? What causes fires in the wild, and how do we put them out? SciShow answers your burning questions about the science of fire. (08:06)
September 26, 2017 at 04:29 PM
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Not Right For WatchKnowLearn
Ages: 9 - 14
4873 Views:
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In this video, Sal Khan discusses and demonstrates basic addition and subtraction of fractions. Like and unlike denominators are included in his examples. Fraction pies are also used to help explain each fraction. Examples include 1/4 + 1/4, 1/4 +... 1/2, and 1/2 - 1/3. Negative numbers are included at the end of the video. Mr. Khan uses the Paint Program (with different colors) to illustrate his points. Sal Khan is the recipient of the 2009 Microsoft Tech Award in Education. (09:49)
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July 11, 2009 at 09:22 AM
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