Allow Teachers to Pre-Book Appointments
The default Administrative access for teachers is Appointment Viewer access only. You can however, provide all your teachers with Resource Administrative access. This would then allow your teachers to book appointments on behalf of parents prior to opening up the scheduler to parents.
To upgrade the teacher access, you would go to the Global Setup / Contacts Setup page. Select Show Advanced options and click on the Upgrade Access Level button.
Each teacher will only have access to their own schedule.