WatchKnowLearn - Free Educational Videos for K-12 Students

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Ages: 8 - 18

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A Biography of Chris Van Allsburg

From YouTube, produced by An Alison Pike Production

This moving slide show was made by a student in college who always loved Chris Van Allsburg's books. The video showcases images from Van Allsburg's books, all taken from the internet and credited in a bibliography, while details of his life and emer... [more]

Found by ronna_37 in Van Allsburg, Chris

November 21, 2009 at 11:44 PM

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Ages: 13 - 18

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Simplifying Radicals - Khan Academy

From YouTube, produced by Sal Khan

This instructor in this video, Sal Khan, discusses how to use exponent rules to simply radicals or square roots. Mr. Khan uses computer software (with different colors) to illustrate his points. Sal Khan is the recipient of the 2009 Microsoft Tech Aw... [more]

Found by teresahopson in Simplifying Radical Expressions

February 28, 2010 at 10:24 AM

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Not Right For WatchKnowLearn

Ages: 8 - 14

4440 Views:

Wall Cloud

From YouTube

This video is home video taken of a wall cloud. A wall cloud is a cloud formation associated with a thunderstorm. A wall cloud occurs only with strong thunderstorms and appears as a lowering cloud that extends out of the main large thunderstorm. An i... [more]

Found by Barb in Types of Clouds

July 28, 2009 at 06:37 PM

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Ages: 13 - 18

4144 Views:

What are Science Variables?

From YouTube, produced by Justin Higgins

Concepts: Variables, Independent or Manipulated Variable, Independent or Responding Variable (05:19) Part of a Blended Classroom taught at Millard West High School. Produced for Millard Public Schools by Justin Higgins.

Found by jahiggins in Scientific Method

September 18, 2014 at 05:37 PM