1. Visit https://zoom.us/billing
2. On the Current Plan tab, click Add/Edit next to the plan you would like to update.
3. Edit the plan to add the number of new users you'll need.
4. Click Continue.
5. Click Upgrade Now
6. Click Confirm
7. Access User Management > Users
8. Click Add User
9. Enter an Email Address you have access to, select Licensed and click Add
10. Visit the inbox for the email that was entered in the previous step
11. Click Verify
12. Make sure the First and Last name for each new user is a generic classroom name (such as Room One, Room Two, etc.) rather than the name of a location or person.