In all 3 Key Stages, tests became the main form of statutory assessment, but a separate strand of Teacher Assessment was also used. This allowed teachers to make judgements about pupils they taught, based on their knowledge of the pupil's learning and attainment against the attainment targets contained within the national curriculum. The results of both tests and teacher assessments were reported using a common scale of attainment levels, numbered 1 to 8 across the three key stages, with the national expectation that pupils would achieve Level 2 at the age of 7; Level 4 at the age of 11; and Level 5 or 6 by the age of 14.