You can invite co-teachers to join your class to help coordinate class activities. If you use Google Groups, you can also invite a group of co-teachers at the same time.


Invite co-teachers or groups of co-teachers

  1. Go to classroom.google.com.

  2. Click the class you want to add co-teachers or groups to. 
  3. At the top, click About.

    Click About

  4. Click Invite Teachers.

    Invite Teachers

  5. You can invite individual teachers or a group. Enter the teacher's or group's email address.

    As you enter text, an autocomplete list might appear.

  6. From the Search results, click a teacher or group or click Add recipient.
  7. (Optional) To invite more teachers or groups, repeat steps 5-6.
  8. Click Invite.

Note: The class list is updated to show the names of invited teachers. Invited teachers receive an email. To join the class, the co-teacher must sign in to Classroom and click Join on the class card.


About permissions for co-teachers

There are a few class permissions to be aware of:

  • Only the primary teacher can delete a class.
  • The primary teacher can't unenroll or be removed from a class.
  • Teachers can't be muted in a class. 
  • The primary teacher owns the class Google Drive folder.
  • After a co-teacher joins the class, the co-teacher has access to the class Google Drive folder.


Class size limitations

Classroom has the following size limitations for each class:

  • Maximum number of teachers: 20
  • Maximum number of members (teachers and students): 1,000


Source: https://support.google.com/edu/classroom/answer/6190760