You've received great replies! I'll just add a bit of affirmation for ideas already presented.

Single Subject Acceleration
- subject acceleration - http://giftedissues.davidsongifted..../Re_Subject_Acceleration.html#Post209796
- a child may take the end-of-year test in a subject, in order to determine whether they "test-out" and are ready for the next year's material - http://giftedissues.davidsongifted....e_Placement_Meeting_Help.html#Post189825
- acceleration - http://giftedissues.davidsongifted....ration_Roundup_grade_ski.html#Post248163

Advocacy
When approaching a school to request/suggest any difference in approach to your child's education, the process is called "advocacy." There are some things a parent can learn and do, in preparation, to increase the likelihood of advocating successfully.
- http://giftedissues.davidsongifted....y_Advocacy_as_a_Non_Newt.html#Post183916

Homeschooling
There are many discussion threads on homeschooling. These are just a few:
- http://giftedissues.davidsongifted....otes_Requested_Re_Early_E.html#Post15668
- http://giftedissues.davidsongifted....chronous_Development_in_.html#Post248649