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Ages: 13 - 18
4689 Views:
Solving Equations with the Distributive Property, Part 1 - Khan Academy
From YouTube, produced by Salman Khan
In this video, Sal Khan demonstrates how to solve equations with the distributive property.  Mr. Khan uses the software (with different colors) to illustrate his points. Sal Khan is the recipient of the 2009 Microsoft Tech Award in Education.  (06:04... [more]
Found by teresahopson in Distributive Property
June 13, 2010 at 05:32 PM
Not Right For WatchKnowLearn
Ages: 10 - 16
10640 Views:
How to use Ratios and Proportions to Solve Real World Problems
From YouTube, produced by mrtedmartin
Instructor uses a Power Point presentation to demonstrate how to use ratios and proportions to solve problems real world problems.  Unit rates are discussed and definitions are given.  Solving unit rate problems are modeled and a calculator is used f... [more]
Found by RonnieBurt in Word Problems Using Proportion and Ratio
April 14, 2010 at 10:46 PM
Not Right For WatchKnowLearn
Ages: 10 - 18
4728 Views:
Where Did Earth’s Water Come From?
From YouTube, produced by TED-Ed
Water covers over 70% of the Earth, cycling from the oceans and rivers to the clouds and back again. It even makes up about 60% of our bodies. But, in the rest of the solar system, liquid water is almost impossible to find. So how did our planet end ... [more]
Found by teresahopson in Earth's Origins
May 2, 2017 at 06:06 PM
Not Right For WatchKnowLearn
Ages: 11 - 16
9116 Views:
Outbreak of WWI - Alliances and the Schlieffen Plan
From YouTube, produced by BBC
This short video is an overview of the outbreak of WWI. The two alliances are shown on a map and the war declaration is shown. There is an explanation of the Schlieffen Plan. (02:50)
Found by helpingnorth in Causes of World War I
August 6, 2009 at 12:37 PM
Not Right For WatchKnowLearn
Ages: 11 - 16
4058 Views:
Simplifying Square Roots
From YouTube, produced by MarcWhitaker
Instructor uses a white board to model simplifying square roots into simplest radical form.  Examples include perfect square roots, leading coefficient of one, and a leading coefficient other than one.  (7:53)
Found by RonnieBurt in Simplifying Radical Expressions
April 12, 2010 at 07:31 PM
Not Right For WatchKnowLearn
Ages: 8 - 12
8231 Views:
Bill Nye: Genes, DNA , and Chromosomes
From YouTube, produced by Bill Nye
In this professionally-made video, Bill Nye explains functions and composition of genes. (01:06)
Found by mod3st in Cell Overview
May 25, 2011 at 03:56 PM
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