I discovered this Website when browsing through Teacher Training Videos (an absolutely amazing Website). Russell Stannard does such a great presentation of how to use Jing, I’ll let him do the talking – http://www.teachertrainingvideos.com/Jing/index.html.
Use Jing to create a live video of what you are seeing on your computer screen with your voice over providing audio instruction. It is very simple to use. Once you download the software (and it’s free!), you click and drag over the section of the computer screen you want your viewers to see. Then everything you say is recorded. Jing saves the video with your audio recording for you.
This is a great idea for when you want to walk students through an online lesson or you are presenting a PD for your peers where they will need to use a computer.