Jing is a free screencasting software from Techsmith that allows users to take screenshots and record videos of their computer screen. It can be used to create screencasts for educational purposes like recording lectures, assignments, or providing feedback. The software is easy to install and use - users can capture screenshots or screen recordings, annotate them, and share them online through Screencast.com or other platforms. Jing provides a simple way for educators to create video tutorials or demonstrations without cost.