I work at a Junior School (Year 3-6) and we have problems coming from the local Infants' school.
At the end of Key Stage 1 (Infants) the children are teacher assessed at a particular level, it is then our job at the Junior school during Key Stage 2 to make sure they make 2 levels of progress while they are with us.
The levels are split up into sublevels, C B A, then up to the next level, and it is baffling to see the number of children, when you look at their data, who go something like:
Middle of Y1: Level 1B
End of Y1: Level 1A
Middle of Y2: Level 2C
End of Y2: Level 3! Wow, what progress!
It's a load of rubbish designed to make the Infants school look good, the writing assessment they do is not unaided, and we then have a huge rod for our back because we've got to make sure that children who were never a Level 3 to begin with at the end of KS1, achieve a Level 5 when they leave us. It's just never going to happen in some cases.
Our attainment is excellent, well above average compared to the national average; our levels of progress are below average.
Our head has had so many meetings with the head of the infants school about it and she just doesn't believe that they're doing anything wrong.
OFSTED's view? Up until now: Suck it up. Our head has spent years gathering infant school data from the children who come through our school now, so that the next time they come calling we can make a good case for ourselves. (We are rated Outstanding at the moment, as an aside).
Makes me

especially as I teach Year 6 - the pressure on me and my colleagues to get those expected results is huge and this is exacerbated by the infants school.
I love teaching and I think that as a school, we offer our children so many different experiences and a great education; it does worry me, however, that all the government sees is numbers and the fact that we're not hitting our progress targets in all cases.