This reminded me of a few things with DS when he was younger. I figured all 4 yr olds knew their address and phone number, date of birth etc until I started picking up one of his friends from pre-school. DS asked if his pal could come to our place to play on the way home and I thought sure I can call his mum and let her know then wouldn't need to detour past her place but I didn't have her number in my phone (I'm not good at that sort of thing unlike DS)so asked the boy for his phone number and only realised what I'd said when he looked at me like I had 2 heads.
He also used to look quite lost when DS was going through his counting routine of seeing how high he could count by the time we had done the 15 minute trip. Generally way over 100, drove me mad until that phase stopped but it took me a while to realise why his mate didn't join in!
DS has a birthday coming up in November, I say coming up because the count down has started! He can tell you how many days, hours and minutes to the day and has declared the date in October when he will be sending out invites. I guess we realised about the whole calendar thing when being interviewed by a psychiatrist and psychologist he asked them why their calendar (not their office but heh) hadn't been marked off? Then went on to explain that you circle the day in the morning to show where you are then cross it out at the end of the day to show its finished. Simple eh.
Never a dull moment with these kids...
