DS got a level 5 in his year 6 SATS (he would have just scraped it to be fair, he was predicted a level 4 and I worked with him for a couple of months which made him a lot more confident and he got his level 5). He is now in yr7 I have just got back his predicted levels for year 9 and he is on target to get a level 5.
I'm not very au fait with secondary school levels, should he be expected to make one level of progress between yr 6 and 9 - in which case if he is going from a 5c to a 5a I can see that although not expected progress is ok, or is the average expecting 2 levels of progress so he should really be expecting a level 7 (or high level 6) in which case I am quite concerned.
He has been predicted 6s for all his other subjects (got straight 5s in his SATS although a 5c end in all of them).