Recording your computer screens into a digital video (screencasting) for class tutorials can come in handy when flipping the classroom. You can record yourself using an online tool, reciting a presentation, or guide students through a website. You can even record streaming video online – though you will still have to follow copyright rules when recording online video. This post will compare two popular screencasting tools: Camtasia (which cost money) and Screencast-O-Matic (free).