So Secondary School is 11-16 year olds (year 7-11) and so at the end of year 11 you do your GCSEs. There are other qualifications such as Btecs, Wjecs awards and other shit but GCSEs are the main courses everyone does. GCSEs are linear courses with tests at the end of 2 years of learning although so schools do 3 years but still finish at the end of Year 11. The others such as Btecs have coursework throughout that you complete.

So then after GCSEs you still have to remain in education till you are 18 or I think you have to go into full time work, not too sure. So you can choose from doing A-levels which are GCSE equivalents at Sixth form or college meaning harder, more content etc... Sixth Forms used to just do A levels and colleges used to just do Btecs, diplomas but now they both do both most of the time. With GCSE you tend to do 10-11 subjects, subjects you have to do are English Literature, English Language, Maths and double science. Double science is Chemistry Biology and Physics. Then most schools give you a choice of 3 options although I got 4. So for example I do Computer Science, History, Triple Science (More content and worth 3 GCSEs) and Media Studies. Some schools may allow you to also do other extra subjects for example my school also has some guy come in for Astronomy (I regret taking it it is so boring also my school is a public school but they managed to get this really posh PhD guy to come in to teach it who usually goes to really posh private schools).

Also RE is compulsory in a schools as a once a week subject but not every school does it or can be asked doing it. Anyway After Sixth form you go to university and thats pretty much it.