This video does what I have always wanted to do in my teaching but didn’t have the necessary skills (or time) to shade in the black area on my white board.

By now you are problem wondering what on earth I am rabitting on about. Well watch this video to find out more (it will all make sense believe me….)

Here is the video made by Dr. Richard Thornley. Thanks Richard!

[youtube]kc0qcMJwWB8[/youtube]