Good lessons can help combat low level disruption. It cannot cure autism, adhd, etc or make up for a troubled home life or mental illness.
Um, but I never said they would? I said that what I've been being taught is that the first thing you do is make sure your lessons are engaging (and well planned/stretch children, that's a good point) and that will take care of most of the behavior management stuff (ie the kids who are acting up because they're bored or the work is too hard/too easy). I said this is supposed to help with the "vast majority" of behavior management issues. Not "the entirety".
What I went on to say was that there are always going to be some kids for whom regular methods don't work, and that was my point as it pertained to the OP: that OP shouldn't expect to be told what's up, or what's happening, and what her son is telling her is bound to only be a small part of the story.
For the record, I also openly outed myself as a training teacher, so I think pointing out my lack of experience as " really obvious" is pretty unnecessary and kind of snotty. I said it myself, you don't need to bring it up like it's news to anyone or like you're the only one being "honest" here. I know I don't know much, I know I'm green. I'm just saying what I have seen and been taught. (And for the record, I don't teach/won't be teaching in the UK, either - I'll be teaching in my country, which likely does things very differently, which may account for some of the discrepancy in methodology?)
I do, however, take your point that parts of what we're being taught make no good goddamn sense to me and likely make no sense to other practicing teachers. Of course that doesn't mean I don't have to pretend to be all up in it if I want to pass.
ANYWAY. The point of my initial comment (which has unfortunately been clouded by my evident naivete regarding the teaching profession) is that OP is complaining about an apparent lack of action when this child acts out - my contention was that there almost certainly IS action, and the fact that she and her child are not privy to it does not mean it isn't happening. Can we all agree on that?