1.) As a returning student of Big Ideas Math, you will not need to re-register when joining a new class.
From the Big Ideas Math homepage, log into your existing account.
2.) If you are currently not in an active class, you will see one of the above screens after logging in.
Enter the class access code provided by your current teacher and click the Next/Submit button to join that class.
3.) If you are currently in an active class and need to join another, you can open your menu in the navigation bar and click the Add Class button.