In England and Wales, 'sixth form' is the term used to refer to the last two years of secondary education, from the ages of 16 to 18. Some secondary schools include sixth forms. Pupils at these schools spend five years in the main part of the school from the age of 11, and then go into the sixth form for the last two years. Many state secondary schools are only for 11 - 16 year olds. When pupils finish their five years at one of these schools they then move either to a sixth form at another school, or go to 'sixth form college' for two years. Other than in Scotland, which has its own educational system, 'high school' is not used very much in Britain. It may be part of the name e.g. 'Bradfield High School for Girls', but the term doesn't really mean anything - it's just a name referring to a particular secondary school for 11 - 16 or 11 -18 year-olds. A British sixth form is an approximate equivalent of an American high school, but the terms are not interchangeable because the educational systems are not the same. I hope that helps. Do please ask if there's anything else you'd like to know.

Sixth form is part of the schooling system in the UK for students aged 16-18. I think it is optional, students can choose to finish their education at 16 and start work or take an apprenticeship. Some high schools (called secondary schools in England) have a built-in sixth form, alternatively they can choose to go to independent sixth form colleges where they study to take A-level or the IB exam. Hope that helps.

Sixth form does not exist in America. Now I'm wondering as well.