53,432,806 Videos Watched

Age Filter: Click to Set

Embed Video
Embed Video:
URL of source video:
Simply give the URL and we will get the embed code automatically, if we support embedding from the site.

Featured Videos

Not Right For WatchKnowLearn
Ages: 8 - 14
Diffy - Virtual Manipulative
From usu.edu, produced by Utah State University
When Diffy opens, there are four black numbers placed at the corners of a black square. Your first goal is to fill in the four blanks in the blue circles in the middle of each side of the black square. Start with any side of the black square and cli... [more]
May 9, 2010 at 11:11 AM
Not Right For WatchKnowLearn
Ages: 8 - 18
Human Body 101
From nationalgeographic.com, produced by National Geographic
Documentary- The human body performs amazing feats every day, from sending signals rocketing through the brain at high speed to the distribution of oxygen over 1,000 miles of airways. The professional video includes narration and is an excellent over... [more]
July 10, 2009 at 10:12 AM
Not Right For WatchKnowLearn
Ages: 10 - 18
Math Snacks: Ratey the Math Cat (Ratios and Proportions)
From YouTube, produced by New Mexico State University
Ratey pops up when you least expect him. And he can't resist pointing out the rates and "purrportions" in daily life. You'll never again overlook how everyday decisions rely on mathematical reasoning about rates. Ratey the Math Cat addresses number... [more]
January 10, 2012 at 11:20 PM
Not Right For WatchKnowLearn
Ages: 10 - 18
How Vision Works
From YouTube
This 3-D animation and video explains how the eye works to view objects. Shows visuals to explain the difference between be nearsighted and farsighted. Grades 5-12. (02:54)
August 19, 2009 at 09:41 AM
Not Right For WatchKnowLearn
Ages: 9 - 18
Words of Abraham Lincoln
From YouTube
This video presents some of the ideas of Abraham Lincoln against Blacks' rights and the issue of slavery. (no narration - music included). (01:09)
March 25, 2009 at 10:14 PM