1. When teaching via live video/Zoom, most important, you have to over-animate. Gestures are always good in public speaking — doubly so when teaching online. Voice, motions, intonation — amp everything up.
Have a Goose to your Maverick—someone to handle the tech, while you fly the plane (teach).
If not an option, do mock classes with friends/family until you are facile with the tech.