DS (7) is in Y2, there's a new boy in his class, I'll call him Bob. I was talking to DS about Bob asking the usual questions, what's he like, have you played with him, etc. DS says Bob doesn't speak English (except for swearwords!) and spits at people. I try to explain how hard it must be for Bob not speaking the language and encourage DS to be kind to him. DS then says that none of the other KS1 teachers will have the non-English speakers in their class and they all get dumped in his class. It's not the kind of thing I'd expect to hear from DS at all, so I asked him why on earth he'd say that. It turns out he overheard his teacher saying this to the class TA, during carpet time, while the rest of the class were getting to their carpet spots.
I feel like I should say something to the teacher but she's been, in all other ways, a really fantastic teacher; it's obvious how much effort she puts into the job and kids all adore her. I don't want to sound like I'm complaining, but at the same time I think that what she said, within earshot of pupils, is definitely not ok. I'd hate for DS to pick up on that sort of negativity about non-English speakers and if I was Bob's parent I'd be very upset. Should I say something to her? What's the best way to approach it?