This set of videos will give you a full introduction into using JING which is a free screen capture tool from a company called Techsmith. If you are interested in learning about screen capture and you are looking for a FREE tool then JING is a great place to start. You can download JING screen capture technology from this link. Don't forget your students can also use the same technology. It can be used in a huge range of different ways.
Dont forget to click on the controls at the bottom of the video and watch in full screen