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Ages: 10 - 18
Arithmetic of Fractions: Subtraction of Fractions and Mixed Numbers
From YouTube, produced by VideoMathTutor.com
This professionally-made video from the Math Tutor includes the following concepts: subtraction of improper and proper fractions and also mixed numbers. Some examples from the video include 5/12- 1/3, 5 3/7 - 2 2/3, 7/12 - 2/13, and 4 1/12 - 1 5/16. ... [more]
November 9, 2009 at 04:30 AM
Not Right For WatchKnowLearn
Ages: 7 - 11
Earthquakes - by StudyJams
From scholastic.com, produced by Scholastic
Earthquakes are caused by geologic movement in the earth's crust.  They occur in faults, or cracks, located on the earth's surface.  Learn more about earthquakes with this computer animation from StudyJams.  A short, self-checking quiz is also includ... [more]
Found by begamatt in Earthquakes
May 21, 2011 at 06:55 PM
Not Right For WatchKnowLearn
Ages: 15 - 18
Passing the GED Math Test
From eHow, produced by eHow
Excellent video from Jimmy Chang, who has a master's degree in math and has been a math teacher at St. Pete College for more than eight years. Mr. Chang shares basic tips and strategies.  He reminds students to study multiplication tables to prepare.... [more]
July 17, 2009 at 08:59 AM
Not Right For WatchKnowLearn
Ages: 8 - 18
How Birds Camouflage Nests
From YouTube, produced by BBC Worldwide
This is close-up footage of birds disguising nests. David Attenborough is the narrator for this BBC documentary video, which is suitable for older elementary, middle school, and high school students. (03:38)
Found by teresahopson in Nesting
August 7, 2009 at 03:30 PM
Not Right For WatchKnowLearn
Ages: 3 - 8
Counting to 100 Fast - Number Board
From YouTube, produced by Larry Sanger
Watch a 100 number board fill up in less than a minute, with dots showing quantity off to the side. The voice is synched with the number board and dots.  This may be useful to students working with 100 number boards. (0:58)
February 12, 2010 at 04:52 PM
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