152,743,535 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.


There are 3 videos in this category and 0 videos in 0 subcategories.

Category Videos
Not Right For WatchKnowLearn
Ages: 15 - 18
Matrix Multiplication (Part 2) - Khan Academy
From YouTube, produced by Salman Khan
The instructor uses an electronic chalkboard to demonstrate Matrix Multiplication.  At the time of this posting from WatchKnow, this video was a Featured Video on YouTube. The instructor, Sal Khan, continues from Part 1 on multiplying matrices. The s... [more]
April 10, 2010 at 09:59 PM
  • Favorites

Not Right For WatchKnowLearn
Ages: 15 - 18
Matrix Multiplication (Part 1) - Khan Academy
From YouTube, produced by Salman Khan
The instructor demonstrates how to multiply two 2 x 2 matrices. Mr. Khan uses a software program (emphasizing with different colors) to illustrate his points. The student or educator may want to open the video to 'full screen' as the instructor is us... [more]
April 10, 2010 at 09:54 PM
  • Favorites

Not Right For WatchKnowLearn
Ages: 14 - 18
Introduction to Matrices - Yay Math
From YouTube, produced by yaymath
A quick introductory look at how matrices work. The video reviews naming, adding and multiplying matrices. White board in a class setting, some interaction, engaging, several examples of increasing complexity. The discussion is clear and understandab... [more]
Found by ljp in Matrices
July 30, 2009 at 01:44 PM
  • Favorites
History [show]

Loading history...

Please make your comments on categories positive, and not just negative.

People work hard on educational categories, and we want to encourage them to make more!

  • Profanity (curse words), sexually suggestive remarks, and other such obviously inappropriate comments will be deleted immediately, and are grounds for immediate expulsion. Remember, children use this website.
  • Personal criticism on project forums and in video content is not allowed and will be deleted immediately. Any violations of this rule could result in expulsion from the project so please, no insults or other negative personal remarks.
  • Very harshly-worded criticism of content will also be deleted promptly. Please use your vote to express your harshest feelings. Repeated violations of this rule can result in expulsion. If you must criticize another person's hard work, then be nice about it.
If you want to comment, please sign in