Screencast Assignment

I used http://www.screencast-o-matic.com/ in order to make the screencast sample for my class.  The only problem I had with using this site was the volume.  Even after watching their screencast on setting the volume, I still was not able to get it very loud.  I made a sample for my students on how to use the paint application.  As an assignment for them I would have them record themselves drawing something using the paint application or they could even record themselves navigating another website.  I would also be able to use this to show my students how to play educational games on the computer.