Ooh, how exciting! My first pic, I've only been on MN 8 years!!
DC2 starts YR this Sept. In many ways he's far ahead of DC1 at school entry (though he's a spring baby, she's late summer); he can read, write some simple words and sentences, use exclamation marks, do some number bonds in double figures (e.g. 14 + 23, he's probably struggle and use his fingers for 17 + 28), do fractions (e.g. If you asked for a quarter of 12, no hesitation in answering 3). He's a bit of a freak though. In other ways, he will struggle much more - especially in playing with others/managing emotions. He can get his shoes on - but he's equally likely to crumple to the floor screaming wordlessly. Or throw them across the room. Also, he often still has an afternoon nap (unplanned, he just conks out).
His friend, OTOH, can't read, write her own name, count reliably to 10 - but can and does dress herself, is confident and sociable and very good at social interaction. She's probably going to do rather better in the first year of school...
I made sure that DC1 knew her own name and mine, knew the first line of our address, knew who her teacher was and where the school office was, and also that she should never ever go home with anyone else unless either DH or I had told her it was going to happen OR her teacher or the HT told her it was ok. I forgot to tell her not to try to break out of school and go home by herself
(she was caught...)