Tip for #GoogleMeet if you are using w/school account: don't create the link in calendar, use a nickname or code. You can give that to students and then they cannot join until you are in. Once you finish, they all leave and you end the mtg. You can reuse the same code next time!

They must be logged into their school account/domain. This is what makes it more secure than other platforms. They can go to http://meet.google.com  or use the app in the "waffle."