Screencast-o-matic

Screencast-O-Matic is a free tool (Premium Subscription can be purchased), easily and effectively helps you create screencasts (screen recordings).

You can, for instance:

• record a PowerPoint presentation where you, using your webcam and headset (or built-in microphone), talk through your presentation.
• You can also record a Word file, and make speak and visual feedback for your students.
• Record importent funcionalities in a system/IT-platform your student have to know 

http://www.screencast-o-matic.com/