Child on the spectrum in my child’s class

My child (will be three in a few months) goes to daycare in a room with five other kids. There’s two teachers. One of the boys is nonverbal and also is on the spectrum.She’s only been going here for two weeks, and so far he has already pushed her into a wall and thrown sand in her face (these are the instances the teachers told me, not sure if there’s any more). They told me that he usually goes after the smallest kid in his class, and she’s it.Today there was a class party so I was there with her for an hour, and while there I saw him throw a box lid at another child, climb on the tables, throw water out from the sink, bang on the windows, try to climb into the sink, jump on top of another child (making him cry), etc. This was just in one hour. The rest of the kids were calm.The teachers do what they can, but there’s six kids and only two of them. Usually one is focused on him 100%, but when other kids need something, then of course they can’t. I also chose this school because I like the ratio they use, but i thought 2:6 meant exactly that, not one mainly for one child.Tonight I was asking her about her friends and she told me “Joe* is very mean to me every day.”Is this a problem that I should bring up? Obviously it’s not his fault. It did make me sad when I heard about her being pushed into a wall and what she told me, but I’m not in any way blaming the boy. I’m just wondering what I should do in this situation... if anything at all. And also advice on how to explain to my child that he’s not purposely being mean via /r/Parenting https://ift.tt/2ZQuJ5G