Students are usually placed is a class according to their age, but exceptions can be made according to the students ability and proficiency in English.

Each department consists of 5 classes called A, B, C, D or E.
The Primary classes are A (6-7years), B (8-9 years), C (10-11years).
The Secondary classes are D (12 -13 -14 years) and E (15 - 16 years)

This means that a student must attend English D for three years and English E for two years, in order to complete a 5 year secondary course.