Assuming you went to the Orientation already, if you are still confused you should do a few things:
1. Watch the Orientation Video or watch any of the other relevant videos on this support site.
3. Email your teacher, they are here to help you. Give you teacher 24 hours to respond on school days. Remember in the summer, teachers have the weekend off too.
4. Submit a ticket on this support site, try to be as specific as possible, it will help to get you a detailed response. You will have a reply within 24 hours during school days.
5. Come in and ask your teacher in person, they are here to help, even though you haven't known them for very long, they are all highly qualified CUSD teachers that are here to help you. You can log on in class and go over whatever you need. Teachers are here to help Mondays-Thursdays during regular school hours.