Others will have better and more experience, but if you can afford it, maybe a full out assessment by a psychologist experienced in testing G/T kids. If all you know is that he was identified as G/T in Kindergarten, then there is a huge range out there in terms of what might be necessary in terms of accomodating what he knows. For example, an above-age or grade assessment might show that even doing GT math in his current grade isn't challenging enough.
OTOH, you know your son well - is it possible something beyond school is bothering him? Did he perk up over the holidays when he was out of school? Do you think it is only about school? Can he give you more information about being "bored" - i.e. more examples, etc.
Good luck,
Cat
