If you first chose to teach independently, you can join at any time. If you'd like guidance, read: Can I join a school if I have already chosen to teach independently?
When you first log in after completing the registration process, follow these steps:
1. Click on Complete account set-up
2. Select I am a teacher in a school
3. Then Join a school
4. Enter the school key provided by your school administrator and then Join
Please note: Classes you created in your private teaching will not be moved to your school. For more information, read: I’ve created classes as an independent teacher and then joined a school. Will my classes be linked to the school?