*"And how much of that do you think is within teachers' control?"
All of it! They do it! Don't make me pull a Godwin here.*
There's this thing called a Long Term Plan, fayrae. It's written for each year group by the Department collectively, & required to be linked to all manner of assessment objectives - I won't tax you with the details! As soon as anyone observes me teaching/checks my books, both of which happen half termly at least, the first question is 'Is raven following the LTP properly?' - & if not, if I haven't planned all my individual lessons around it, I'm in deep shit.
Then there's another thing called a residual, which is basically a comparison of how my year 11 students do, on average, in their GCSEs, compared with the GCSE targets they were set 5 years previously.
Again, if my residual has a minus sign in front of it, I'm in the shit.
Then there's a benchmark figure of how many kids get 5 GCSEs at A*-C, including English & Maths. If that was 75% last year & it's 72% this year - or it's 75% again but the school down the road got 77% - again, the HT is going to track down the 6 kids who missed their C target, & if they're in my teaching group - guess what? More deep shit.
Of course I teach to the test. If I didn't, I wouldn't be teaching at all for much longer.