My son is only 8 - yes, he got straight A's on this report card (first report with letter grades). He got 100% on all the 4th grade math tests he took.(he's in 3rd). He is very well behaved in school. Having said that - he IS only 8, so I don't think getting A's in such a hard thing at that age. Also - I don't know exactly how gifted he is. Things may well change as he ages. We'll see

He should be very proud of himself.
My son, 8 also has been getting letter grades for the past 2 years. This year was the first he was able to get on the honor roll. He moves around at school to 4th for literacy and 5th for math.
I firmly believe in making a big deal about these things. He loves school and is very well behaved also. Positive reinforcement is possibly the best too you have.
JMO