Sherry G. (boofee) reviewed Teaching Gifted Kids in the Regular Classroom: Strategies and Techniques Every Teacher Can Use to Meet the Academic Needs of the Gifted and Talented (Revised and Updated Edition) on + 3 more book reviews
This book gives actual concrete examples of things you can do to enrich the content of a regular class for a gifted child. I have read several similar books, and this one is the best one I have run across so far that you might want to buy for your child's teacher.