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Ages: 5 - 11
Using Fact Families in Addition and Subtraction
From eduplace.com, produced by Houghton Mifflin
Addition and subtraction facts that use the same numbers are related. 6+5 =11 and 11 - 5 = 6 are related facts.  Use related facts to solve problems. User clicks through the slides.
May 14, 2010 at 02:04 PM
Not Right For WatchKnowLearn
Ages: 11 - 18
History of Labor Day
From history.com, produced by History Channel
In 1894, Grover Cleveland made Labor Day a federal holiday after a failed attempt to break up a railroad strike. (03:03)
Found by freealan in Labor Day
July 16, 2010 at 09:35 PM
Not Right For WatchKnowLearn
Ages: 10 - 18
Learn About Glaciers
From 5min, produced by WorldWide Media
Learn about the three biggest areas with glaciers and learn about glacier sports. (07:12)
May 1, 2011 at 08:20 AM
Not Right For WatchKnowLearn
Ages: 11 - 18
Photosynthesis - Khan Academy
From YouTube, produced by Salman Khan
The instructor uses the software as his electronic 'chalkboard' to offer an overview of photosynthesis. As the instructor says: nothing on Earth would probably exist if not for the process of photosynthesis. (13:37)
February 9, 2010 at 08:28 PM
Not Right For WatchKnowLearn
Ages: 10 - 18
Industrial Revolution
From bbc.co.uk, produced by BBC
A mixture of drama, narration and contemporary sources. The narrative outlines the social and political triggers and the context for the Industrial Revolution. Stephenson's Rocket is a dramatised case study, used to illustrate the changes. The econom... [more]
December 8, 2013 at 01:15 PM