why dose private school solve this problem? if he

really knows everything, talk to his teacher to see if he can get tested to skip a grade completly or just for certain subjects. you should talk to your teacher during the school year, if they think he knows everything, the teacher also can give him harder materials to work on in the class. all those experiences I knew it is from public school. anyhow, private school is not the solution, you need to find out why he is not concentrated or not interested. some kids with ADD can have the same problems.