There are a few things to consider when it comes to setting up your Virtual Classroom.

Audio

When multiple people are talking through a web conferencing program, there will be difficulties with sound, and since sound is one of the most critical aspects when you are talking…it is a good idea to get it right. Here are some ideas for making your remote lectures sound as crisp as possible:

Limit the outside noise—Ask anyone who lives in your house to try and be quiet during class time. This is hard because we were not planning on teaching (or learning) remotely. So, try to be understanding if someone’s home is noisier than it should be for class, but at the same time, ask if the non-students can keep it down. With that being said, kids who would normally be at school might be at home. So, expect disruptions.
Use headphones—Headphones or earbuds will cut down on a lot of echo, and they will make it easier to hear what is being said. So, request that everyone use headphones.
Turn off your mic, if you’re not using it—Students may forget to turn off their microphones after they have spoken. The more microphones that are on at one time; the more likely it will be that audio distortions will occur. (Note: the host can force off student microphones with any of the web conferencing software.) This does not apply just to students, though. Be aware of what you say and do when the microphone (or camera) is on.
Gestures and chat also work—Sometimes, you need to ask a quick: “Any questions?” You can monitor student videos to see what they think. If you request a thumbs up or down, that is just as good as speaking into a microphone. Students can also respond in the chat tool.

Lighting

Consider the lighting that is in the room where you will be teaching. A good light in front of your face will help the most to keep you well lit during class. Remember that the sun may change during your class time, as well. For some other tips about lighting, read How To Use Light Like a Pro for Your Video Calls.

Even a simple light from a lamp situated behind your webcam can make it easier to see your face.

Ambient light on my face Just the ambient light in my office

A lamp pointed toward my face

Facing toward the window with natural light Facing toward the window, using natural light

While it did not turn me into Brad Pitt, at least students can see my face with a little consideration for the lighting.

Background

Now that they can see you, think about your background. Do you want everyone to see what is behind you? If you do, then great. If you do not, then consider sprucing up the background or using Microsoft Teams, which has a background blur feature. A plain, white wall works well, too.