DD is year 4 and her class has been shuffled around due to staff sickness. I knew she wasn't too happy this week but thought it was more because she's just not really a fan of change. But tonight she was in floods of tears and it turns out she's been sat with the most disruptive boy in the class and every day this week he's been making nasty comments and pinching and her twisting her arms and making out it's just a joke. I asked her if she told him it hurts and she said no. I think she she doesn't want to show him he's upsetting her and then he will stop it. She hasn't said anything to the teacher, probably partly because it's not her normal teacher this week but also I think she's worried she won't be listened to or made to feel like she's just making a fuss. I'm angry because I've known for a while this particular boy behaves like this and nothing seems to ever get done about it. She's potentially got 2 more years with him, and it will only get worse.
It comes as no surprise that they sat DD who is quiet and studious with the most disruptive child in the class in the hope he won't get to cause trouble. But it sounds like all that's happening is that he's just bullying my daughter on the quiet without any of the staff noticing because DD is trying to grin and bare it 
I don't want her to be sat with him again tomorrow as she's clearly had enough of it so how do I best approach this in the morning? WWYD? Thanks