Don't want to go into too much detail but I am in a school where the possibility of going into special measures is very high. The HT seems to be trying to avoid this by piling pressure on the teachers; formally observing whole lessons without notice and then grading them to OFSTED standards. While I am not worried about the observations as such (always get graded as good), I do find it hard to teach without wondering whether the head is going to turn up. It is demoralising for me, but even more so for those of my colleagues who are struggling to reach satisfactory grading. The atmosphere in the school is awful and I can't wait for half-term. My question is whether it is allowed for these sort of observations to take place. I know that the HT can walk into a class at any time and observe (and they have often done that in the past), but I have a constant feeling of every thing being scrutinised and it is taking the enjoyment out of my lessons.