Not quite sure what you mean. Do you mean judging trainee teachers in an OFSTED inspection? It was always my understanding that a student teacher is essentially graded on how they respond to the class, and how they show reflection and progress (for themselves) in their planning. When I mentor student teachers, I expect them to show a clear reflection of their practice every week. Of course, this then means that NQTs and classroom teachers are assessed on the progress that the kids make. This means that the lesson can be interesting, engaging, funny, and inspirational but if the students do make make apparent progress, then it is hard/difficult/impossible to award outstanding. It's a significant shift. Not least for the teachers who can perform, and ask a plethora of questions to which every student puts their hand up immediately, but only a few ever answer. If a trainee teacher was somehow judged by OFSTED, I would want to buffet them with the above knowledge, depending on how reflective they were. If they didn't show themselves capable of reflective practice (and being confident in the face of ridicule, able to work monster hours etc.) then I would let OFSTED to do their bit.