I am a relatively new teacher(second year of teaching). I have created a much more positive relationship(compared to last year) with 3 out of 5 of the classes that I teach this year. I have some younger students giving me a little bit of silly attitudes that I kind of ignored ir treated with calm so far. However, I have a class withmostly seniors and some juniors(all boys) that I simply don't enjoy so much as my other classes. They are extremly quiet..it is almost like I am teaching to the wall. I teach the same way I teach my other classes( mini lectures, allowing students to ask lots of questions, lots of group work). All my otehr students in other classes are cooperative and very engaged. This one class that I want to ask advise about is, as I said very quiet, I barely have one or two students who participate, ask questions, answer my questions. When I lecture, I do scafolding, which works woth everybody else, but these kids act like they don't want to be there at all. So, today I tried to explain to them that I need some feedback from them, I need them to talk and I ask them if they have a reason not to talk to me. They again didn't say absoltely anything. After a couple of moments, tehy started lokng at eachotehr and they started laughing. I asked them why they laugh and they would not talk...not say a word. Partcularly two of the students would keep making faces and laughing at each other after we started moving to some group work and I asked them to stay after class. I explained to them that making faces andlaughing behind me is something that I don't tolerate. I was very calm and nice when I explained this to them. I told them I don't want to see this hapenning again. they said they didn't mean to offend me, but even as they were saying this, tehy were laughing at each other. They left my room and I heard some real loud laughters(I don't know if coming from them or other students from teh same class that were probabily waiting oustide). Anyway, one of these students that I talked to, he was having this "arrogant smile before also". He said that he just likes to laugh a lot. I am not sure how to react to all this. It affected me and I just didn't find it respectful. I am froma different country teaching in US and I was told at the beginning of this school year that when students roll their eyes and make faces s kind of normal in American culture. I ahve been nothing but very nice with my students, trying to gain their respect and most of them do respect me and I don't have big behavioral problems. But I really need advice to how to react to this situation with this class. In general I am not sure what is considered normal around here and what is not..