I've discovered today that DS2 (6.2yo, Y1) can count in twos and add money. He counted out the money in his money box, and proudly announced that he has £2.94! (As he has muscle problems and is unable to produce written work, it is very hard to know what level he is working on IYSWIM, teacher just says he's in the lowest group as they can't move him up without written work, and she hasn't produced any teacher assessments for me to look at). What level would you say that is in NC levels? He can add up to 100, and take away from 20. He understands 1/2 and 1/4 of things. He understands that 2 x 1/2 = 1 whole, and 2 x 1/4 = 1/2. He is very good at pattern recognition, i.e. if you have a pattern that goes circle, square, triangle, circle, square,....,he can tell you what is next in the sequence. He can't tell the time yet, but is fascinated by the passage of time, so we are working on telling the time over half term. He can count in tens up to 100, and in 5's up to 50. TBH I'd just like a rough guess at which NC level he is working on, as the school seem unable to tell me.