DS1 stammers when trying to say something complex. It happens at home if he is trying to talk about something like science, and at school if he is trying to explain something complicated in class.
The teacher raised it at parents' evening because she said it was becoming more noticeable.
he has a very good social position at school. it's perhaps because of this that (according to teacher) no one has yet sniggered or even blinked when he stammers.
neither we nor the teacher has ever yet mentioned the stammer.
I told the teacher I would research it but my instinct was to do nothing.
An alternative would be to talk about it in a "it's not an issue" way like saying "you know how sometimes you can't get the ideas out and the words get stuck for a bit?". But you have to watch your moment and be so careful to say something like that.....
any thoughts/experiences welcome.