You should add a guest to your team when they will have on-going communication and interaction with your students.
If you want to bring in a guest speaker to your class, see the directions for scheduling a Teams meeting with a guest speaker.
- Open Microsoft Teams
- Click Teams on the menu on the left side of the screen

- Click the 3 dots in the upper-right corner of the team where you want to add the guest user

- Click Add Member. A pop-up with an address bar will appear

- Type the email address of the guest you want to add in the address bar

- Press the 'Enter' key on your keyboard. The Add button will become purple.
- Click Add
The guest will be sent an email notification stating they have been invited to join a Team. Please note that the guest will need to log in with a Microsoft account to have access (but the invitation email does not need to be sent to a Microsoft account).
Tip: You can also forward them a link to the directions for Joining a Team as a Guest.