Okay. My final question on this. You recognise it as a priority, particularly for boys. Does that mean that the focus will then drift slightly from maths, where there has been some success; and drift from science, where the encouragement of more people to take GCSE science has reduced the number of high-level passes?
First, we have to have a system that is capable of doing all of those of things at the same time. We can't accept a system that says, 'Well, we can do a bit over here, but that means we have to—.' We have to have a system, Suzy, that can drive improvements at all levels. That's my expectation.
The balloon needs to be bigger not just squeezing it at one end.
Absolutely, yes. That's my expectation of this system. You have to deliver across all of these. We have seen some progress. As I've said, it's far from perfect, and we've got more work to do, but we have to deliver across all three domains, as we did last time. And I'm not going to make any apologies for changing the performance indicators around science. It was a travesty that there were children who never had the opportunity to sit a science GCSE. We don't have to make assumptions about the nature of many, many, many of those children. We have seen a significant increase in the number of children who are having the opportunity to sit GCSE science and who are passing GCSE science. So, I'm not going to make any apologies about that. One of the reasons that I suspect we have ended up with poor science scores is because of the previous policy around science entries and science qualifications. Again, one of the reasons that we have changed it isn't just solely because we need to do better in PISA, but I think that by changing it, we will see an impact on PISA.