@forthispost - and that is why it varies so much. There were some teachers at his comprehensive that really did not "teach you stuff", but as he got more able to choose, he avoided those subjects - and there were some very good teachers (his maths teacher, for example, can easily hold his own with any at the private school). It is a good comprehensive (and possibly an outstanding comprehensive). But there were a lot of kids who didn't want to learn, or couldn't see the point, or who enjoyed being disruptive, or genuinely found the material challenging or all of the above, and that made class not the easiest to be in. DS was the kid asking the teachers to mark extra essays he did, becuase he rightly judged that he wasn't getting enough, which the teachers were, by and large, very happy to do (although some of them weren't, but probably the majority were), but the teachers didn't set them to the class, as there was a limit to what you can do when kids can't or don't want to do even the lesser amount required. And the school does a lot better than your DD's comprehensive, no question. And in some ways when you have a handful that are really keen to learn, maybe you encourage them in ways you wouldn't if you had an entire class like that. That is why it is so tricky. But DS is so much happier in a class where the class is bright and wants to do well, which is the main thing for him.