Hi everyone, I am currently teaching at an English summer school to first graders in Spain for the month of July. It is only four weeks long and it is not very intensive at all as the kids don't understand much English yet, but I have a few trouble makers in one of my classes that will not respond positively to any type of discipline. They throw markers, run around the classroom, hit each other, etc. I write their names on the board and they continue, I sit them outside and they make faces in the windows, I ask them nicely and they obey for thirty seconds, but then turn around and do it again. The students who actually behave don't get to learn as much, as I am constantly dealing with the bad ones! Because it's a month-long summer program and I am a senior in college from the States, some of them always treat me as a substitute (and you know how hard kids can be with subs). Any tips?