I've recently returned to work (teacher, secondary) - before hand i negociated to be part time until january and received a letter from the Head confirming this. 3 weeks after returning to work, i heard, through staff room gossip, that the Head had 'signed my letter in errror' and that i was actually expected to return full time in september. I had spoken to the Head a few times since i'd been back, to say hi etc and he'd never mentioned this, in fact a friend said that he'd been meaning to, but was 'snowed under'. what i want to know is what the rules/employment law says about this kind of thing - apart from it being totally unprofessional and rude in my mind not to tell me about this 'error', he signed a letter that i still have that confirms my terms of employment. i have a meeting with him next tuesday, so i was hoping to know what to do say to him!!