Classroom teachers and IB examiners work in partnership to ensure that students have ample opportunity to demonstrate what they have learned and that they are able to communicate. A variety of assessment methods is used to acknowledge both the content and the process of academic achievement and to take into account differing learning styles and cultural patterns.

External examinations which are externally marked and each marker is moderated by a mark/remark method

Tasks which are internally supervised with the guidance of the teacher over a period of time but marked by external examiners

Internal assessment where the candidate's work is marked by the teacher with this marking being subjected to external moderation. The teacher's marks may be adjusted so that international parity is maintained. Almost all courses have an internally assessed component.

Specialized forms of assessment are used in subjects such as visual arts, music and foreign languages. Examinations tend to form the basis of the assessment for most courses because of their high levels of objectivity and reliability. Internally assessed work usually counts for a minimum of 20% and maximum of 50% of the final grade in a subject.

Each examined subject is graded on a scale of 1 (minimum) to 7 (maximum). Generally each assessment component is awarded marks. The total of the component marks are used to award the subject grade. In order to be awarded the diploma a student must meet defined standards and conditions, including a minimum total of 24 points and the satisfactory completion of the three diploma requirements: TOK, the extended essay, and CAS activities. The maximum score of 45 includes three points for the combination of the extended essay and work in TOK.