If you are required to join a live lesson you will find a ‘join’ link in the calendar tab of teams with an additional link on the teams tab by pressing on the appropriate lesson.
Before you join a meeting make sure that your microphone is off (it can be switched on again later). Your video is on and the speaker is ok. Finally tap the blur background button.
Tap Join now. You will be held in the meeting lobby until your teacher admits you to the lesson.
Once you have been granted access you will be able to see and hear your teacher and any others that are in the lesson.