If you are both the admin of your school and a teacher, you will need to know how to change from the Admin Dashboard to the Teacher Dashboard.
To do this simply go to the top right of the screen and select the Admin icon on the right side of your school name:
Once you select it a drop down will appear, you will want to select the teacher icon which will look like this:
Once you select the Teacher icon the dashboard will load
This is where you can access Your classes, students and devices assigned to you as the teacher.