All content viewed on WatchKnow is hosted by other websites. I tried the one titled "Home Run" and discovered it was missing. So this resource needs to be viewed prior to accessing it during class! I enjoyed "Finding Perimeter". You need to look at this one!
"We believe that everyone should have the same opportunity to learn. The best way to make this possible, we believe, is to organize into one, super directory the hundreds of thousands of good videos currently available on the Internet. To
make this a reality, we invite teachers, instructors and educators to suggest
videos for inclusion into our directory, and then to review, approve, and assign
those videos into appropriate categories using a wiki framework and philosophy.
The videos are the highest quality found on the World Wide Web, cover all major
educational topics from elementary to secondary schools (or age range 1 - 18),
and are Kid Safe!"
WatchKnow is both a resource for users and also a non-profit, online community that encourages everyone to collect, create, and share free, innovative, educational videos.