Hmm, is it possible to "have a contract to supply ..." while you're working at school as a teacher? Maybe it's something similar to "temporary contract"? You work and they pay you only for the hours that you teach. You don't get paid when you're on a sick leave, on vacation etc.
Maybe it's something similar to "temporary contract"? You work and they pay you only for the hours that you teach. You don't get paid when you're on a sick leave, on vacation etc.