52,037,966 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.

Properties of Numbers

Category Videos
Not Right For WatchKnowLearn
Ages: 12 - 15
2393 Views:
Properties of Real Numbers - Yay Math
From YouTube, produced by yaymath
Description of the types of Real numbers -- Natural, Whole, Integer, Rational, and Irrational. White board in a class setting, some interaction, engaging. The discussion is clear and understandable. Preview - full version at http://video.google.com/v... [more]
July 31, 2009 at 11:08 AM
  • Favorites

Not Right For WatchKnowLearn
Ages: 12 - 18
1213 Views:
Number Sets, Part 1 of 3
From YouTube, produced by Sal Khan
Using the question 'What number sets does the number 8 belong to?', the Mr. Khan explains the categories that numbers can belong to. Mr. Khan uses the Paint Program (with different colors) to illustrate his points. Sal Khan is the recipient of the 20... [more]
June 27, 2010 at 02:14 PM
  • Favorites

Not Right For WatchKnowLearn
Ages: 12 - 18
1151 Views:
Number Sets, Part 3 of 3
From YouTube, produced by Sal Khan
Using the question 'If x is a whole number, what other sets does x belong to?'. Mr. Khan uses the Paint Program (with different colors) to illustrate his points. Sal Khan is the recipient of the 2009 Microsoft Tech Award in Education. (02:52)
June 27, 2010 at 02:27 PM
  • Favorites

Not Right For WatchKnowLearn
Ages: 12 - 18
1080 Views:
Number Sets, Part 2 of 3
From YouTube, produced by Sal Khan
Using the question 'What number sets does the number 3.4028 (with the 28 at the end of the number repeating forever) belong to?', Mr. Khan explains the categories that numbers can belong to. Mr. Khan uses the Paint Program (with different colors) to ... [more]
June 27, 2010 at 02:22 PM
  • Favorites

Not Right For WatchKnowLearn
Ages: 12 - 18
660 Views:
What Are the Different Types of Numbers?
From education-portal.com, produced by Education Portal Academy
This video tells what the following types of numbers are: natural numbers, whole numbers, integers, rational numbers, and real numbers. It also discusses how each of these groups of numbers builds upon the group before it. This video was created for ... [more]
May 9, 2012 at 03:12 PM
  • Favorites

Not Right For WatchKnowLearn
Ages: 12 - 18
2961 Views:
Basic Math: Lesson 4 - Properties of Numbers
From YouTube, produced by VideoMathTutor.com
Properties discussed: Reflexive Property of Equality,Symmetric Property of Equality, Transitive Property of Equality,Substitution Property, Additive Property of Equality, Cancellation Law of Addition, Multiplicative Property of Equality, Cancellation... [more]
March 28, 2009 at 11:55 AM
  • Favorites

Not Right For WatchKnowLearn
Ages: 10 - 18
846 Views:
How to Find the Square Root
From mathplayground.com, produced by Brightstorm
In this 3:37 long video the narrator explains how to deal with square roots. To simplify a square root, you can use the branching tree, or you can find a square root multiply it by a square root to get your square root and simplify. The first method ... [more]
November 22, 2011 at 09:32 PM
  • Favorites


Loading featured videos...


History [show]


Loading history...

Comments
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
Reason:  

  Cancel

Share