The system used for internal purposes during the course is that employed by the International Baccalaureate Organisation in the award of the Diploma. Each of the six subjects studied is graded on a 1-7 scale as follows:
Award of the Diploma
(a) Higher level subjects: in principle the candidate should achieve a Grade 4 or above in each Higher level subject. Nevertheless, ONE Grade 3 (but not a Grade 2, nor a Grade 1) will be acceptable if compensated by Grade 5 or above in another subject offered at Higher level.
(b) Standard level subjects: results of subjects offered at this level must not include:
(c) Overall result: this must not include
*Theory of Knowledge, written work completed during the course is graded externally.
*Extended Essays are graded externally.
The total number of bonus points awarded is determined according to the following matrix.
For example, a candidate who achieves level B for Theory of Knowledge and level C for the Extended Essay will be awarded one bonus point. Candidates who achieve level E for both Theory of Knowledge and the Extended Essay will be awarded F for their bonus points score. The award of F is a failing condition of the Diploma. The combination of points for subjects and bonus points means that the maximum possible points score in the IB Diploma is 45.