DD has decided on two of her A level subjects, but is less decided on the third. DD knows what she wants to do at university. Her first two choices are geared towards that. No specific subject needed for the third A level, but DD has ambitions to apply for Oxford, so third subject needs to be something she can get a high grade in if she is to have any chance of achieving her goal. DD is trying to decide between maths and chemistry as third A level. DD was initially inclined to choose maths. DS and I felt quite wary of that choice after the experience of DS who has just finished A levels. DS had grade 8 for maths GCSE and A* for chemistry. DS's view is that with chemistry DD can pretty much assure herself of an A by putting the work in, whereas with maths you can spend hours and hours studying only to find that you still can't answer the question, because if you're not the sort of person who naturally "gets" maths, you may still not spot what you need to do to answer the question. And DS's experience is that getting grade 8 at GCSE is no guarantee that you will fall into the group who "get" maths at A level. So we have steered DD towards chemistry rather than maths. But that was before GCSE results day. DD has got grade 9 in maths and 8 for chemistry. I'm now wondering whether a 9 at GCSE is pretty much always indicative of a student who will be capable of getting a high grade at A level maths. Thoughts welcome!