If your teacher assigns a video project, you can use WeVideo to work as a team
The best way to video record your screen is using Loom.
Loom: Async Video Messaging for Work
Make sure you log in using your school Google account
Here's how you can get a free account as a student or teacher:
These instructions are maintained over here. This is a wonderful tool everyone should have on their computer. Need help with a problem online? Take a quick video showing what's going on and you'll find it's so much easier to get answers when you can show the problem.
There's probably a PRT SC button on your keyboard. You can press that and it'll copy the contents of your screen to the system's clipboard. That means you can just paste the picture in an email if you want to, for example, show someone a problem you're seeing. You can also use the built-in snipping tool.
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Snipping Tool is for chumps
ScreenToGif - Record your screen, edit and save as a gif or video
In case you want to make an animated picture, Mr. Fancy-pants
You can press CMD+Shift+3 to create a screenshot of your whole screen on your desktop. Or you can press CMD+Shift+4 to select a particular area of your screen.
Skitch | Evernote
Take pictures and make quick annotations. Jing for Mac currently doesn't work in Catalina