My oldest son is becoming quite a good writer but really struggles with spelling. We have and enjoy All About Spelling. This year (currently 11 and in 6th grade), we worked through AAS 4 and began AAS 5. It was going well except that this past semester we just weren't finding the time to do it consistently. I like the way it breaks spelling down into rules that you can remember but if we aren't doing it, it doesn't do much good. Is there a similar program that moves more quickly through the material possibly even something he can do by himself?