Google Classroom: Inviting Teachers
/Google Classroom provides teachers a way to connect their students in a 'class' to communicate, share resources, and provide a workflow for sharing documents with automatic handling of permissions – from setting a task, through monitoring students work to submission, marking and returning work to students digitally.
If you would like to share your class with a colleague in your faculty or grade, or with a team teacher – use the "Invite Teacher" in the "About" section of Google Classroom. You may need to add them to your contacts first.