Eldest about to go into the sixth form which is a whole new ball game to me (many decades since I did A levels and things have clearly changed since then).
I know they do AS levels at the end of year 12 and A2 at the end of year 13 but that's about all I know! Presumably the A2 builds on the AS so they have to get a certain grade at AS to be sure of a good grade at A level? Do schools normally expect certain grades at AS before they allow students to continue with A2s?