Google Meet | Admins
Google Meet Admin Resources
Turn recording ability OFF in Google Meet
Google Meet troubleshooting info for your support staff
You can also turn ON Hangouts Meet links to be automatically added to Calendar invites. That can make it easy for teachers to schedule a class on Calendar and communicate which one is the link for a class session:
Log into the G Suite Admin Console > Apps > G Suite Apps > Calendar > Click Sharing settings > Video Calls