I have shown ds6 a distribution graph and pointed roughly to where he is.
We did this last year after DS8 was tested. Actually, we asked him where he thought he fell on the curve for a bunch of things (overall intelligence, reading ability, math, riding a bike, swimming, speaking multiple languages, etc). He was quite good at estimating where he was for each one.
While we do not plan on telling either kid their scores while they're kids, I do hope to share (or at least offer) the information when they're adults. I wish had my high school entrance exam scores, and I know DH wishes he had similar information as well.
