If you want to stick with what’s on your Mac, you can screen record with QuickTime. If you need to speak during the recording, there’s an option for capturing a

If you want to stick with what’s on your Mac, you can screen record with QuickTime. If you need to speak during the recording, there’s an option for capturing audio while you record the screen. Alternatively, you can record the screen with QuickTime, import the video into iMovie, then add an audio track after the fact. This can be a particularly nice approach if you’re good at scripting your way through a video, plus it allows you the ability to add some freeze-frames when you need more time to explain than you have video.