The document summarizes the screencasting tool Screencast-o-matic. It can be used to create screen recordings with audio narration that teachers can use to demonstrate software, provide feedback, or present lessons. Students can also create screencasts. There is a free basic version with a 15 minute recording limit and a $15/year pro version that removes the recording limit and adds additional features. The tool allows users to easily capture and share what is happening on their screen.