By third grade, when most kids can string together some sentences into paragraphs, I think it's possible to teach "reading" to gifted readers. K, 1, and 2? Really tough, since there's absolutely no guarantee that they can produce any kind of output to match up with what they are capable of reading and processing. I don't know what I'd do with my son, either. He can probably read at the sixth grade level now, but he can only write at the first grade level or so. Slowly.