{1}
##LOC[OK]##
{1}
##LOC[OK]##
##LOC[Cancel]##
{1}
##LOC[OK]##
##LOC[Cancel]##
LOGIN
Register
Forgot Password?
Remember Me
DONATE
English

Español

中文
Home
WatchKnowLearn Home
About
About Us
Change Log
Edit Queue
Add Video
Get Bookmarklet!
Help
Embed Video:
close
URL of source video:
Simply give the URL and we will get the embed code automatically, if we support embedding from the site.
Tips for Students
Tips for Teachers
Tips for Parents
Tips for Homeschoolers
Quick Start
Contributor Help
Common Core State Standards for First Grade
Common Core State Standards for First Grade
WatchKnow
YouTube
SchoolTube
GoogleVideo
TeacherTube
Search
Get Your Own Classroom »
Join This Classroom »
Browse Our Directory
Ages
3  18
3
18
Add Categories from WatchKnowLearn
ELA (1248)
1.OA.D.7 (0)
Mathematics (511)
For the Teacher (113)
Unsorted Videos (0)
Embed New Video Here...
Mathematics
Embed
There are 4 videos in this category and 507 videos in 55 subcategories.
Subcategories:
Operations and Algebraic Thinking
Number and Operations in Base Ten
Measurement and Data
Geometry
Category Videos
Category Videos
Featured Videos
Not Right For WatchKnowLearn
Ages:
7  13
13017
Views:
Relating Subtraction and Addition Fact Families to Find Missing Numbers
From
eduplace.com
, produced by
Houghton Mifflin
In this video slideshow, students will learn how to use related facts or fact families, to help find missing numbers. User clicks through the slides.
Found by
tinag1974
in
Mathematics
May 20, 2010 at 04:03 PM
Comments:
1
Favorites
Not Right For WatchKnowLearn
Ages:
7  12
5479
Views:
Decimals on a Number Line
From
YouTube
, produced by
Sal Khan
In this brief video, Sal Khan compares decimals on a mumber line. Mr. Khan, of Khan Academy, uses computer software for demonstration. (01:39)
Found by
teresahopson
in
Mathematics
July 18, 2011 at 07:40 PM
Favorites
Not Right For WatchKnowLearn
Ages:
18  18
4723
Views:
How to Teach Math as a Social Activity
From
edutopia.org
, produced by
Edutopia
An Anchorage, Alaska, fifth grade teacher establishes a cooperativelearning environment in an upperelementary classroom to help teach math. The video goes through some of the steps that he uses. There is aren't any examples of assessment.
Found by
freealan
in
Mathematics
June 26, 2011 at 11:53 PM
Favorites
Not Right For WatchKnowLearn
Ages:
3  8
12655
Views:
"That's Mathematics" Song by Tom Lehrer
From
YouTube
, produced by
3mgrant
This simple video is a general celebration of mathematics in song. It consists only of words on the screen.accompanied by the song. Tom Lehrer penned many humorous songs just like this. (01:42)
Found by
Plandlax35
in
Mathematics
November 18, 2008 at 05:56 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 harshlyworded 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:
Select One
No longer in use/cleaning up
Low quality
Inappropriate for this classroom
Other [please specify…]
Cancel
Share
Reason:
Select One
Other [please specify…]
Cancel
Home
WatchKnowLearn Home
About
About Us
Change Log
Edit Queue