Other terms, which are sometimes used synonymously, include form group and class.
The traditional way of organising a secondary school in the UK relies on same-age grouping usually referred to as a year-system.
[1] An alternative tutorial arrangement is vertical tutoring (VT), which has been adopted by many schools in the UK and internationally since 2000.
Research by Peter A. Barnard tracks the development of a number of principles and practices emanating from this tranche of schools.
These include:[2] In independent schools, tutoring usually operates within the house system.