Choose option 1 if you want to register a new team, and you and your team mates satisfy the required conditions to be eligible for the prizes (check the Rules for this). You will also have to provide details about your school and contact details for a teacher nominated by you. After you have successfully completed the registration, your team mates can register to join the team by picking Option 2 below.
Choose option 2 if you want to join a team that was already registered by one of your team mates. If you choose this option then the person who registered the team you want to join will have to confirm (s)he is happy for you to join (this is done by email).