At British International School, Phuket, in Years 12 and 13 (Key Stage Five) all students study the International Baccalaureate Diploma Programme (IBDP), which culminates in externally assessed examinations at the end of Year 13.

The IBDP is similar to the UK A Level system in that it is a final two-year course for entry to university, but the IBDP has the added benefit of being designed specifically for international school students, providing a broad and balanced programme of study.

The IBDP is recognised worldwide and is accepted as an entrance qualification by leading universities all over the world.

Students take six subjects: three Higher level (HL) and three Standard Level (SL). They also study Theory of Knowledge (TOK), complete a 4000 word Extended Essay and do a CAS (Creativity, Activity, Service) programme.

Students choose one subject from groups one to five and a further subject from group six or another subject from group one to five.

Assessment: All subjects are graded from one to seven with up to three bonus points awarded for the Extended Essay and TOK.

The maximum score is 45 and the minimum Diploma pass mark is 24 (conditions apply). The final grade is based on a mixture of internal assessment and externally-assessed examinations.

The option blocks are listed below: