I tell adults about the experiences of more than a hundred teachers I've interviewed. They tell me that allowing the child to help them learn helped them become better teachers. That's because they no longer had to pretend they were the experts - not only about computers but about other things.
I sound like a damn commercial, but half the crap in this house is from Wal-mart. The big deal about Wal-mart is that its open 24 hours.