I need a erase my school iPad

Your school has control over the iPad and will not let you erase it. You will not be required to pay for more storage, the only thing that will happen is the iPad may not be backed up any longer or messages may quit working. The solution is to take the iPad to the school and have them deal with it, since there is nothing you will be able to do.

What you can try is to use a cleaning app to erase your digital prints, not sure which one or you can try to reset the iPad so that all files and settings are removed. If you can't do any of these you can try to contact the IT administrator of the school as suggested by previous replies :)

[Edited by Moderator]

Contact the school IT department for assistance with the school's iPad.