Subject to article 9, the provisions of this article regulate the aggregation of AT levels of attainment determined in accordance with article 4 to calculate subject levels of attainment.

In the case of English, a pupil’s level of attainment in the subject shall be the average of his level in each AT.

In the case of Welsh, a pupil’s level of attainment in the subject shall be in the average of his level in each AT but with his level in AT1 (Oral (Speaking, Listening and Viewing)) weighted by a factor of two.

In the case of mathematics, a pupil’s level of attainment in the subject shall be the average of his level in each AT but with his level in AT2 (number and algebra) weighted by a factor of two.

In the case of science, a pupil’s level of attainment in the subject shall be the average of his level in each AT but with his level in AT1 (experimental and investigative science) weighted by a factor of three.