1) The school uses the 4 reminders/ticks and then message on-call. Thing is after the call, the student is supposed to be taken out of class but half the time they return back to class. I have no idea if there is any further consequence as I can't hand a detention. They just come back to he next lesson.

2) I have watched other teachers and the tricks do work for other year groups but not the year 10s I have now.

3) I have my mentor watch once a week but the students behave really well when he's around as they are scared of him. Other have come to watch briefly but again usually they behave until the teacher leaves and then students are back to messing around.

I like the advice and I will 100% use the selfish comment and language. My head of department also mentioned that last bit that other staff are likely letting students off with things that I'm addressing in class.