It is possible to sign in as a Guest to the iPads if an account is not available.
This should not be used unless you are able to monitor closely what the students are doing on the iPad.
This temporary login does not save any files and does not allow access to many websites. When you log out, the account is wiped clean and all files are deleted. It is
not possible to sign into Microsoft Office as a guest.
Select Guest and then press the Home button to sign in.
Notice you are not signed into an iCloud account. You cannot save any files.
Sign out in the normal way - remember none of your files will be saved and everything will be lost.