Stand up straight and look pupils in the eye, the government's behaviour tsar has told teachers. Yes, that'll teach a six-foot-something burly teenage boy not to forget his homework.
So, in order to help Charlie and his group of expert advisers, we've come up with a few other tactics which may help poor teachers control their unruly classrooms. From the cane to the chokey, it's all here. But let us know if you have any better ideas...