Our experience with D (now 14) has been to acknowledge to her that she is different (and great!) in her interest in subjects that most kids aren't interested in until they are older (or ever). I often tell her how much I enjoy talking with her because she talks and thinks more like an adult, and I think she likes to hear that. But we also talk about areas where she is at age level (or even below!), and how everyone has things they are good at AND things they have to work on. Her sister can't whip through an Algebra II assignment in 5 minutes, but her sister CAN make a new friend in 5 minutes. And there is one academic area (foreign language) where D actually has to work hard for success; we have made sure we don't let D slide with lower grades in that area, as it is important for her to learn good study skills(very hard when everything is so easy for them!). You can't hide the fact that they are gifted from them... my advice is to embrace it with them.
