Dublb, its called 'sight reading', recognizing words by sight not sound. So you are doing him a huge favor to teach him the 'sound' of words and spelling rules that are 'skipped' today in public schools.
I have a new 'alarm' clock and it goes "Meow". Mega sleeps in her cage in my bathroom and the East Sun wakes her up and she wants 'out, now please!" Guess its a good thing, gets me started of a morning.
Have a great weekend, everyone!