Follow the instructions from http://www.bcos.org/how-to-use-microsoft-teams-meet/ to get started.
Once you have stopped the recording you can get a sharable link by clicking the 3 dots next to the meeting thumbnail that was just created.
Click Get Link
and then click Copy
Paste the link of your meeting into your Google Classroom for all of your students. All of your recorded Teams meetings will be in your OneDrive in a folder called recordings.