There is a group of 4 girls in my class who were together in first grade, and they are pretty close. (It seems like first grade is the year that kids form really close friendships.) I have a total of 13 girls in my class, and these 4 are together all. The. Time. They seem to have a difficult time making decisions independently. For example, they were playing a math game in pairs the other day. I did not pair any of them up together, and the next thing I know, 3 of them are standing together in a corner, partners in tow. They wanted to find a spot in the classroom where all of them could still be close together and work with their partners. Per school rule, students have to line up in "line order." Almost every time we line up, one of them just HAS to tell the other one something. They rarely make decisions without "consulting" with one-another. I even see them make faces at one-another during lessons. For example, if I'm explaining a game, one of them will turn around and look at another one and make a "This is boring" look. They are all good kids, and this issue is more or less just annoying than it is disruptive. They aren't mean to other girls in the class, but they certainly do not have any intentions of letting other girls into their circle. How would you approach this situation if you were me? I would like to nip this behavior now, because I feel that it could become a bigger issue in the future.