Google Meet is a video-communication service developed by Google, similar to Zoom. It is one of two apps that constitute the replacement for Google Hangouts, the other being Google Chat. Each teacher can invite students in their Google Classroom to join a Google Meet by clicking on the Meet link on the homepage of Google Classroom. The students will immediately receive the invitation to join the Meet though through email and will be enabled to join the Meet by clicking on the link contained within the email.
How to Join a Google Meet: