Hello, I'm on a long term supply at a very challenging school and could really do with some advice. It hasn't gone well and most of my classes are pretty badly behaved. For a number of reasons I have had very little support from SLT or my HOD. My problem now is that quite a few students are openly critical of me in the lessons. They discuss my 'bad' teaching and failure to 'control' the class in loud voices which of course makes me feel like a failure. I feel like I can't remove a child from the lesson or tell them off for this kind of behaviour as it's their opinion. When i did bring this up with SLT some months ago I was simply told it was up to me to establish positive relationships with the class. What would you say to students who do this? I really don't feel a flippant one liner is suitable. it goes beyond that as it's rude and disrespectful and has a huge effect on my confidence! Thanks.