their GCSE (General Certificate of Secondary Education) or "O level" (Ordinary level) exams.
Pupils must take English language, Maths, and Science for GCSE, as well as a half GCSE in a foreign language and Technology.
In addition, they must also be taught Physical Education, religious Education and Sex Education, although they do not take exams in these subjects.
If pupils stay on, they usually take A (Advanced) levels, AS (Advanced Supplementary) levels or GNVQs (Greater National Vocational Qualifications).
Marks: A* - excellent, A,B,C – good, D,E – badly.
A*
B
A
C
D
E