I recently joined a college to teach A levels and was told how great the students were. One of the first year groups are great, some lateness but I am told, by other staff, buses are a problem. My problem is the other group who have several students who want to mess about. It's nothing terrible but in spite of talking to, several have made no effort. I had to ask one to leave a lesson today as he was just disrupting it too much. It seems he has been to managers to claim I was picking on him. I have tried breaking the lesson down into easier steps, activities and praise and although most have responded well, there is still the episodes of silly behaviour. Can anyone suggest anything else I could try please? I know they are testing me as I am new but I thought after a month that they would have realised it won't work.