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Featured Videos
Not Right For WatchKnowLearn
Ages:
9 - 16
12751
Views:
Using Venn Diagrams to Solve Word Problems
From
YouTube
, produced by
teachertubemath
The instructor shows how and when to use Venn Diagrams to solve word problems. He uses an interactive whiteboard to demonstrate the word problem that can be solved with Venn Diagrams. Urges students to label their charts and graphs. Teacher teaches
...
clearly and provides good models. (05:34)
[more]
Found by
teresahopson
in
Venn Diagrams
December 29, 2009 at 05:58 PM
Favorites
Not Right For WatchKnowLearn
Ages:
3 - 12
5020
Views:
Homework Hero
From
YouTube
, produced by
Tony Dusko
This video is a great animated, short film that was created by a teacher to encourage students to do their homework. It centers around two characters that are interesting and funny. Kids will love watching this. (01:36)
Found by
ronna_37
in
Homework
November 29, 2009 at 10:02 AM
Favorites
Not Right For WatchKnowLearn
Ages:
14 - 18
3953
Views:
Culture and Cultural Geography
From
teachertube.com
, produced by
constantgeographer
This World Geography video briefly discusses where people live and don't live in the world.
Found by
grazianione
in
Population and Migration
August 8, 2009 at 09:25 AM
Favorites
Not Right For WatchKnowLearn
Ages:
12 - 18
3410
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The Origin of Teflon
From
5min
, produced by
On Networks
The slipperiest stuff known to man, Teflon has made a tremendous impact on the world. Invented by accident in 1938, it has gone on to become a substance in all kinds of household items. Created by mistake, PTFE (poly-tetra-fluoro-ethylene) is a long
...
chain carbon polymer surrounded by fluoride atoms. The fluoride atoms fully enclose the carbon chain so that it can't react with other molecules. It wasn't until 1944 that the name "Teflon" became trademarked. Dr. Kiki gives us the skinny in this episode of Food Science.Run time 03:31.
[more]
Found by
begamatt
in
Polymers
June 14, 2010 at 02:15 PM
Favorites
Not Right For WatchKnowLearn
Ages:
12 - 18
9551
Views:
History of Measuring Systems
From
YouTube
, produced by
ScienceOnline
The development of measuring systems is a great human accomplishment. The early Egyptians created a unit of length, the cubit, based on the human forearm. The English and others, used the human foot and grains of barley corn to measure length. The m
...
etric system started with an fascinating attempt to define the meter using time. The meter evolved through a number of incarnations many involving distances taken from the planet. Today the meter is defined using the speed of light. This definition relies on a reliable means for measuring time. Time and space have been joined in our current definition of the meter. (07:23)
[more]
Found by
Barb
in
Development of Math
December 5, 2009 at 09:44 PM
Comments:
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Favorites
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Ages:
13 - 18
3863
Views:
Solving Equations 1 - Khan Academy
From
YouTube
, produced by
Sal Khan
In this video, Sal Khan demonstrates how to solve for 'x'. Mr. Khan uses software (with different colors) to illustrate his points. Sal Khan is the recipient of the 2009 Microsoft Tech Award in Education. There is a lot of information on the screen--
...
the viewer may want to open the video to 'full screen.' (03:04)
[more]
Found by
teresahopson
in
Solving Simple Equations
June 13, 2010 at 05:25 PM
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