Ask his teachers to keep a 'communication diary'. The teacher will write down how he behaves in school each day and send the diary home with him. Disicipline or rewards can be presented at home depending on how he's behaved. You can communicate back to the teachers what steps you're taking at home so that everyone is on the same page. You may also want to explore the cause(s) of this behavior a little: Is he lonely at school? Is he homesick or scared? Are children being mean to him?

Talk Doctor Online in Bissoy App