You'll get off to a great start if you familiarise yourself with school procedures and learn who's who in your school as soon as possible.
As a starting point, use the information below. It will help you to learn what you may need to know. You can then contextualise the information to match the context of your school.
If you have been assigned a mentor or buddy, use your time with them to clarify any procedures you are unsure of.
Who's who
School procedures
Professional relationships