We're working on this too, so I've did some research last fall. The best thing I've found to pass on to classroom teachers is The Book Whisperer by Donalyn Miller, which encourages teachers to move away from a worksheet/book report approach to reading and towards more "authentic" and engaged reading that encourages individual interests/abilities. Other accommodations that we've sought include: letting my daughter bring her own books (from home or the public library) to read at school during individual reading time; developing more challenging individual writing assignments related to books, so that she moves beyond plot summary; developing reading "clusters" with other advanced readers (drawing on Winebrenner's Teaching Gifted Kids in the Regular Classroom). We didn't have as much success as I'd hoped, I must admit. I also find this blog, by a mom of HG/PG highly verbal girls, to be a big help--this links to one of her posts on advanced readers and how they tend to be ignored
http://themorechild.com/2008/08/13/tamara-heres-my-scream/.
