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Ages: 7 - 10
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Subtraction 3: Introduction to Borrowing or Regrouping - Khan Academy
From YouTube, produced by Sal Khan
In this video, the instructor uses a graphics program to review how to subtract numbers and introduces how to re-group or borrow. The instructor also uses a number line. The video is suitable for elementary students. (18:26)
January 27, 2010 at 02:51 AM
Not Right For WatchKnowLearn
Ages: 7 - 12
7178 Views:
The Photosynthesis Song
From YouTube
This is a short (under two minutes) video that has a catchy song by Peter Weatherall about photosynthesis.
April 17, 2010 at 05:44 PM
Not Right For WatchKnowLearn
Ages: 8 - 14
28571 Views:
Water Cycle Rap Song
From YouTube, produced by Discovery
A rap about the Earth's water cycle. The song raps about rain, evaporation, and condensation. The music video is from a Bill Nye episode on water.  (01:30)
July 17, 2009 at 01:05 PM
Not Right For WatchKnowLearn
Ages: 9 - 14
8982 Views:
The Moon with Bill Nye
From TeacherTube, produced by Disney
This Bill Nye the Science Guy video explores the science of the moon. He discusses orbit, moonlight, phases of the moon, and surface of the moon.  Silly at times, but good science. 7:54 min.
July 13, 2009 at 07:46 PM
Not Right For WatchKnowLearn
Ages: 8 - 16
2134 Views:
Mesa Verde- Home to Many Native Americans
From NationalGeographicVideo
800 years ago, communities of Native Americans built homes in hillside caves, decorating them with art, then abandoning them. Why? Learn more about Mesa Verde by going into the area with help of archeologists.
July 12, 2009 at 05:20 PM
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