Your son is lucky to be challenged at his level in a public school!

You might have read this already, but here is a link that you might find interesting:

http://www.hoagiesgifted.org/why_test.htm

We decided to test our children hoping to find a better educational fit for them. Ideally, we would like to keep them in public school. But our school district is very conservative (they won't even offer the test so we have to do private testing) and not big on deviating from the norm. We are hoping the test results will support our request for single-subject acceleration.

Good luck!