First off, congratulations!! It's a terrific feeling to see your child grow and progress like that!
But I've never bothered with age-abilities. A lot of things in What To Expect in The First Year was so out of sync with what I was experiencing that I stopped checking after a while. It could be this forum, but I also feel that published age-abilities are too generalized and often take the lowest common denominator of what is possible, ie, "the child should be able to do such and such no later than this age". Schools in particular subscribe to this thinking because of NCLB.
Your child has made good achievement and you're doing a great job. Enjoy it!
