You have a right to teach without this major disruption in your room, and your students have the right to learn in a quiet environment. Once you fully embrace that idea, you will be empowered to handle this situation. I had a crier last year who was just as you describe. The entire hallway was disrupted by his ultra loud crying. I looped up with him again this year. I understand your frustration and how detrimental this can be to your frame of mind. I found that the only way to deal with the child was to keep a close eye on him. As soon as he started to show signs of crying, I sent him out of the room - either to another teacher down the hall, the bathroom to wash his face, or to the office. He could not reenter the room until he was done making noise. This helped a great deal. I was now not under the stress and strain of his unbearable outbursts, and could proceed to think more clearly about how to help him. I developed a better relationship with him, and had more emotional reserves of my own to be able to extend more positive statements to him. I called in his family and the counselor. His family was unable to provide much help, since they were the source of the problem. The family refused the school's offer of placing him in the student assistance process. Now we are at the point where he rarely cries. He still has many, many issues. Your student's crying is really an SOS. While it is important to respond to that SOS, it is equally important to preserve the right of your other students to learn, and your right to teach without disruption.