You can have him read the first paragraph on each page. That way he doesn't have to read too many words and doesn't get too frustrated but still gets to learn something. Even today we take turn with both DS6 and DS4. We read one page and they the other one even though DS6 usually keeps going for more than one page.

I like Reader Rabbit computer games. They seem to do a nice job in teaching sight words and phonics. May be your son would love to practice that way.

LMom