Sixth form

The sixth form is the final stage in British secondary schools. This term is used in England, Northern Ireland, Wales and some other Commonwealth countries. The sixth form (or 'Key Stage 5') is the final two years of secondary education. Students (typically between 16 and 18 years of age) prepare for their A-level (or equivalent) examinations.

The term sixth form college is used by schools which only take 16 to 19 year old for advanced school-level qualifications. They may offer courses for the International Baccalaureate Diploma and other exams. In Scotland, the final year of school is known as sixth year or S6; independent schools in Scotland often use the term "sixth form".

The term originated from the fact that sixth form students would have entered the stage in the sixth year of their secondary education. Such students often have more relaxed rules and privileges due to their age and perceived seniority compared to other students attending the school.

England and Wales

In England and Wales, the term 'sixth form' describes the fifth key stage. Alternatively, Year 12 and 13 can be used to describe the age group. The usage of form refers to the historical use of benches used at the back of classrooms. Students would begin at the first form (now referred to as Year 7) at 12 and progress to higher forms over time. This sixth form would be divided between upper and lower sixth forms.