Dottie,
Thank you so much for such a quick and insightful reply. 155 is in math reasoning. His spelling is the weakest (130 only, with GE8.5, while all others of at least 11.4). This also reflects in his weakness in his writing assignments at school, while he is coasting through the spelling homework. He is in a GT magnet this year. Due to his weakness in writing, I am hesitant bringing up any topic on moving faster on anything. Maybe I can just mention the math side at our upcoming parent-teacher conference casually to see how it goes. Thanks again.