Any advice would be gratefully received. I have a lower set group of 16 students, 7-8 of which are known disrupters in other lessons. They are also all know each other. I have close on to constant low-level disruption in the classroom: begging for equipment, calling out, swinging on chairs, not starting work etc and I just cannot keep tabs on it all and I find myself getting sucked in between asking their (often irrelevant) questions, asking for help, telling to stop talk, sorting problems etc. I try to praise but the disruption takes over and by the end of the lesson I am exhausted. The response from above is crack down on them hard and I keep being told 'send them out' but once they are sent out I then have to organise work for them and leave the others to get more out of control. I seem to have no authority whatsoever and cracking down on them tends to provoke constant arguments and grudges. I am struggling to keep consistent order, get the work done, push them higher (a BIG focus at my school - we are on a huge progress drive and target grades rule) and get them sorted for work. I think it's a failed observation for me basically.