GB. ENGLAND. Hertfordshire. Hatfield Comprehensive. A fifth-form remedial English class. 1984.Founded as a technical high school in 1953, the school became a mixed comprehensive in 1971. The pupils across the ability range average three O-levels each, although a few gain eight or more, and the sixth form averages 2.2 A-levels. On average half the year leave at the age of 16 when they finish their compulsory education.