Tutoring and Teaching using screen capture
I think this software can be used by people of all ages as the subject of the tutorial are endless. I can show you how to tweet, open up and use various programs, or use various websites through the use of this tutorial! Not only can you see the instruction but you are able to hear my voice instructing you. This is a gem of a tool for teachers. You don't even have to be in the room and leave all your instructions and the lesson in a screen capture. Now the sub is off the hook ... and the students will have to be responsible to complete the lesson while you are gone!
http://ocio.osu.edu/elearning/toolbox/brief/screencast-o-matic/7-things-you-should-know-about-screencast-o-matic/