1. Select 'Inbox' from the blue menu on the lefthand side
2. To compose a message click the small pencil icon at the top of your canvas inbox
3. In this 'Compose Message' window - first choose which subject you are emailing regarding from the 'Subject' drop down menu
4. Next click the address book Icon on the right hand side of the 'To' toolbar. Select the appropriate teacher
5. Fill out the 'Subject' and 'Body' for the message like a regular email.