I work part time in a primary school which expects Ofsted this term. The Head teaches the class on the days I am not there. This will be the first Ofsted since I joined. I have been told that if Ofsted come in on the days I don't work, I am expected to come in. Given that the maximum notice I would get of this would be 2 working days, it could be difficult to change domestic arrangements and I would be teaching lessons I hadn't planned for. Is it normal practice to expect a part timer to come in to cover an Ofsted inspection?