I suspect this is a good example of following the child's lead. acs's son was curious. Was it worthwhile to keep the number from him? I agree with acs: no. What would be gained by keeping it from him? Making the number a secret is not helping him, and I agree that it might hurt him.
But DS7 never asked about his score. Should I tell him what it was? No. Why would I? If he needed that info, he'd ask. There, too, I'm following his lead.
I suspect that's the key: if they ask, tell them, but put it in context as completely as you can. It's not a 30-second conversation, it's a 30-minute one!
