Such a diffucult issue, but w/ him being a boy....(I have two boys, one will be five in Feb, and the other is 10 and in the gifted program @ school ) I would wait. Like the teacher above stated, it's more the maturity. Boys grow slower than girls, and mature slower emotionally. That's great that he's smart, and can hold conversations w/ adults, but he needs to be able to hold his own w/ kids his own age too! My 10 year old was very smart academically, but a little behind emotionally, as he didn't "hang" w/ kids his own age when he was that age! Very good boy, but kept to himself alot!! He's now doing AWESOME, and came into his own w/ friends, which started in 3rd grade!! It's so easy to keep your gifted children stimulated at home! Museums, zoo, movies, novels, etc!! However, it's hard for them if they are not mature enough to be w/ kids a year older.....Good Luck!!