I have started a new job and I have inherited a class of 23 boys. I cannot formally teach them, they are doing a btec. Today 7 of them just at the computer and played games. I emailed IT support and got them blocked. This took about 15mins. I was sat away from my computer and I was marking a kids folder. The internet was blocked, and those boys kicked off, swearing "why did you block the internet?" I said I didnt I've been marking work. The kid whose work I was marking also said Miss hasn't done anything. I don't know how to bring them round, 1/2 of them are on SEN register, they are school action, and the policy is that they get no inclass support. We have an OFSTED due and I know I will fail if I get observed, I've flagged up these issues and I am now struggling as to what my next move it. Mobiles, earphones are a major issue. I cannot get them to put them away. I'm just wondering whatelse I can do? The "behaviour managers" just seem to be the naughty kids friends. I really don't understand their purpose in school.