Lowering Your Voice

In the class that I am currently teaching in, I have a little Autistic boy. One of the things that I have really been struggling with him is when he interrupts my lessons to tell me what time it is, and where he or the class needs to be right then. Sometimes, he will even interrupt my lessons ten minutes before he or the class needs to be somewhere. I have found that the times when I argue with him and slightly raise my voice to tell him to go sit back down, he just becomes more frustrated and continues to tell me over and over again where he or the class needs to be. I have learned that if I softly and calmly tell him that I am teaching a lesson and that I need him to go sit back down, he seems to calm down and do as I have asked. On some occasions when he does not sit back down and continues to disrupt the class, I will calmly say his name, not look at him, and point to his desk and he will stop arguing and go. I am amazed that this technique has really worked for him, and it has been so nice to save time during my lessons.