Congratulations on getting Premium access! Here's how you can create a new Premium class.
(1) Go to the "Class Management" page, and click "Add Class"
This is the page you first see when you log in to a Teacher account.
(2) Select "Premium"
You'll see this window pop up.
Enter your code into the "Class Redemption Code" field
Fill out the other details as well and press Continue.
And you're done!
Your new class will show up on this same page and you can begin setting it up.