Try sections of
The Bell Curve and
Real Education , both by Charles Murray.
The Bell Curve has a lot to say about the nature of intelligence and how it's tested.
Real Education discusses the idea in less depth and has a whole of good ideas about improving schools.
FWIW, I don't think that everyone is (cognitively) gifted (if everyone is, no one is). Different people have different strengths, but being a natural leader or a gifted athlete doesn't mean you can also learn algebra when you're eight. Conversely, being able to learn algebra when you're eight is no guarantee that you can run the hundred in less than twelve seconds, nor does it mean that you'd make a fantastic line manager.
For me, intelligence refers specifically to how well you perform on g-loaded tests (these tests measure cognitive ability). Obviously, people can have gifts in other areas (athletics, art, the ability to lead others), but that doesn't necessarily make them
intelligent.
Val
