You are not the only one going through this.  We're here in the U.S. and our 14 year old son is basically having the same problems as yours.  From K-6th grade, he was the model student, good grades, quiet and respectful. As soon as he hit middle school, he changed completely.  His grades were still good, but he became the "class clown", which caused disruption in his classes.  We have gotten email after email from his teachers saying he is disruptive.  We have a talk with him, then his teacher(s) talk with him, he says he understands what he did was wrong and apologizes to the teacher.  The problem is that this will only last a week or two then he's back to his usual behavior and the cycle starts again.     We have him seeing an educational therapist and she's helping some, but his behavior never really changes.  We don't know if this is just normal teen rebellious behavior or something more.  All I do know is my wife and I really don't know what else to do to help him.   If anyone has any ideas or solutions that worked for you, please let me know. ... View more