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Ages: 12 - 18
Algebra: Formulas From Geometry
From YouTube, produced by VideoMathTutor.com
This lesson consists of providing you with a basic review of the formulas from geometry you will most likely encounter in algebra (and other math classes like trigonometry and calculus). This is NOT a detailed, formal lesson.  (23:08)
November 9, 2009 at 04:38 AM
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Ages: 10 - 18
Using Cloud-Seeding (Geo-Engineering) to Solve Global Warming
From YouTube
This clip from the "Five Ways to Save the World" details a cheap, simple, and low-risk way to compensate for global warming. If the reflectivity of clouds could be increased slightly, sufficient sunlight would be reflected to compensate for any fut... [more]
July 1, 2010 at 07:03 PM
Not Right For WatchKnowLearn
Ages: 11 - 18
Porgi Amor “The Marriage of Figaro” by Wolfgang Mozart
From YouTube
Kiri Te Kanawa sings the Countess Almaviva’s aria in a live performance. (04:33)
December 18, 2009 at 08:52 PM
Not Right For WatchKnowLearn
Ages: 3 - 7
Learn to Count ~ Tea Time with Tayla!
From YouTube, produced by BrighterMoon Productions
Very educational and fun video with Tayla, who teaches numbers and counting. Mentioning each number as she puts them in her piggy bank. Help Tayla count numbers in this video for kids, children, and toddlers in preschool, kindergarten, or homeschool!... [more]
September 25, 2013 at 12:42 PM
Not Right For WatchKnowLearn
Ages: 14 - 18
Manifest Destiny: Mexican American War
From hippocampus.org, produced by hippocampus.org
Using art and other types of images, this video presents an overview of the Mexican American War and its impact on the nation. The video has a significant number of facts and is an excellent starting place for a cause and effect essay.  A timeline an... [more]
June 17, 2012 at 01:44 PM