NOTE: Zoom is for meetings and conferences. It is not intended as a primary means of holding class.
As you've probably experienced, tempers can flare online and participants in a discussion can say harsh words that they wouldn't necessarily say face to face. It's also easy to type something you think is innocuous that is interpreted as hurtful—and the misunderstanding can be hard to clear up if people aren't in the same room. So it might be worth suggesting some guidelines for online discussion (BEFORE a flame war engulfs the class).