It is not possible to train for two such different subject areas at the same time. A PGCE is a very intense course and trying to combine two such different disciplines would be impossible in my view. There are some joint PGCE programmes and some courses do require a knowledge and understanding of different disciplines (e.g. science where there is an expectation that you teach all the sciences to the age of 14 and, ideally, offer two sciences to GCSE level. Even then, you would only offer one science to A level). I am aware of maths/physics PGCE programmes and maths/IT, but nowhere does history and Maths. One thing you may want to consider is doing a mathematics enhancement programme which is a six month fully funded course designed to take those with some maths (As/A level) and provide them with the subject knowledge to teach maths to GCSE and/or A level. While on the course you also are provided with a £200 per week tax free bursary. The good news is that once you have QTS it is not restricted to your subject (or even your age range). Once in a job, if you can persuade a head that you can teach another subject (history) then you could learn that 'on the job'. As you know, maths teachers are in short supply, more so than history teachers so I would seriously consider training as a maths teacher and offering history as a second subject rather than the other way around (in addition the PGCE bursary for maths teachers is much higher - £9,000). The Enhancement and bursaries are OK at present, but with the new coalition government, who knows how long they will last.