Maths/Chemistry/Physics. All three. How many years university study do you have for each? The Canadian college of teachers for each province have some of the highest standard for registration in the world. Unless you have a couple of undergraduate degrees to cover the three (perhaps you do) you certainly couldn't register with the BC college of teachers. England is the opposite end of the scale to Canada and standards are rock bottom. If you even stepped into a university physics/chemistry or maths department you can teach those subjects in England. Just surprised to hear a Canadian, with the high standards for registration in Canada, claim to be able to teach all three.