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Ages: 12 - 18
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The Aztec Empire
From YouTube, produced by History Channel
'Aztec is a term used to refer to certain ethnic groups of central Mexico, particularly those groups who spoke the Nahuatl language and who achieved political and military dominance over large parts of Mesoamerica in the 14th, 15th and 16th centuries... [more]
August 9, 2009 at 01:28 PM
Not Right For WatchKnowLearn
Ages: 9 - 13
1515 Views:
Division 2 - Khan Academy
From YouTube, produced by Salman Khan
This is an introduction to division with remainders. In an easy conversational tone, the instructor uses the computer screen as his 'blackboard' and different colors to emphasis his points. As this is an introduction to long division, this video is f... [more]
January 23, 2010 at 01:55 PM
Not Right For WatchKnowLearn
Ages: 9 - 14
1683 Views:
Estimating Sums and Differences
From YouTube, produced by YourTeacher.com
Students learn to estimate a sum or difference by first rounding each numeral to the place specified in the problem. For example, to estimate 4,909 + 3,217 by rounding each number to the nearest thousand, first round 4,909 up to 5,000, and round 3,21... [more]
July 13, 2009 at 07:00 PM
Not Right For WatchKnowLearn
Ages: 10 - 16
1030 Views:
Money and Inflation
From YouTube
This is an animated explanation of the concept of money. (05:19)
July 15, 2009 at 02:37 PM
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Ages: 4 - 11
3880 Views:
Elapsed Time - A Virtual Manipulative
From usu.edu, produced by Utah State University
What Time Will It Be? – Answer questions asking you to indicate what time it will be before or after a given time period. There are easy-to-understand instructions to the right of the manipulative.
June 3, 2010 at 08:17 PM
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