I have now found the Private Eye article on the net. For those of you who haven't read it it is a diary of a secondary Maths teacher Goto
www.private-eye.co.uk/content/showitem.cfm/issue.1107/section.teacher
I can't vouch for its authenticity but it does read 'true' to me. I would say he was unlucky to get so many difficult classes, but my experiences re. disruptive behaviour in lower ability sets are similar (not quite as bad). He was unlucky not to get better sets, which can be, as he says, a delight to teach. And before anyone has a go at me for not wanting to teach lower attainment sets, I have no problem with them, just the poor behaviour that you see in many of these sets. It seems to me dreadfully unfair that kids with SEN have to put up with this sort of behaviour, they are the kids who need the teachers' time most, and you just don't get to give them what they need because of the disruptive minority.
I'd be interested in your thoughts.