To assign a classroom once the teacher has been assigned a license:
Log into your account
Click Manage Students > Roster
Click Manage Classrooms
Click Create a Classroom
Enter a classroom name and select the appropriate product(s)
Click Add Classroom
You can add or remove products by clicking the pencil icon to the right and check or uncheck the appropriate box
To add additional classrooms to your account, you will need to be assigned a license for each classroom. In Manage Classrooms:
Log into your account
Click Manage Students > Roster
Click Manage Classrooms
Click Add New Classroom
Enter a classroom name and select the appropriate product(s)
Click Add Classroom
If you have multiple classrooms, you can move students from one classroom to another by clicking the classroom name in the Classroom column on your student roster and selecting the appropriate classroom
How to Manage a Multiple Classroom Account - User Guide