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
Go to classroom.google.com.
- Click the class you want to add co-teachers or groups to.
- At the top, click About.
- Click Invite Teachers.
- 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.
- From the Search results, click a teacher or group or click Add recipient.
- (Optional) To invite more teachers or groups, repeat steps 5-6.
- 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