So, there is a You Tube file you REALLY want to use at school, but You Tube is blocked!  There are a few tools, that if used ahead of time (on your home network, maybe?) allow you can convert the video from a YouTube file into a video file (.mov, .mpg, etc). You can then play the video right on your computer.  Here are a FREE few tools that can help you!

Zamzar
ConvertTube