It is important to follow the wireless network guidelines to ensure you install packages/network profiles that maximizes security. Otherwise, you risk having to approve a certificate that you cannot really validate its correctness of.
Please note that you must have a user name and password for the school's network to access the wireless network. These are provided by your teacher if you have not already received a user name. You can also send an SMS to 29481953 with the text 'password'