Do you want your principal to be aware of the communication that you are ending to your class or do you have a program coordinator who needs to be CC'ed in the class communication? You can invite those people as Class Admin role to your class.
- Click Add Members in the left navigation tray
- Choose your class from the Add members group
- Click Class Admin role in the For Which Role screen
- Click Type Emails Manually in How to Invite?
- Enter the email address in the text box
- Click Send
Note: He /she will get an invitation code to join your class. Once they sign up using the invitation code, they will be able to access your class on the app and also they will receive email notifications of the updates you make to your class.