Thank you for that answer. My understanding is that some of the legacy GCSEs would be sat, but never mind.

I want to move on now to school closures, and I can see that all but one year group in my old alma mater in Aberdare were sent home to self-isolate the other day. Schools in Ceredigion, of course, are closing for two weeks, including primary schools, which surprised me, I have to say, when we are told repeatedly that in these settings the risks of transmission are low. You've told me that you don't collect data on whether positive cases in schools are there as a result of coming in from the community, or whether they're the result of in-school transmission, which doesn't help school heads assess the risk of the latter. The updated guidance that you issued—it must have been about three weeks ago now—to help schools has clearly had no affect in reducing the numbers sent home either way, and neither has the test and trace programme. So, I understand, then, why you have gone for the new guidance on face coverings in communal areas in schools, but why have you taken the advice from the technical advisory group document that you received to mean that pupils should wear them in the outdoor areas of school premises?