IB courses are offered at Standard Level (SL) or Higher Level (HL). Higher Level classes involve more hours of class instruction, taught over two years, and include an extra study option not found in Standard Level courses.
For the IB Diploma, students take 3, no more than 4, courses at Higher Level. The other 2 or 3 courses are taken at Standard Level. Students take one class from each Group. For the Bilingual Diploma, students take 2 different languages in Group 1 and no language in Group 2. Instead of taking a course in Group 6, students may take a second course from Groups 2, 3, or 4.
In addition to the six courses, Diploma students complete the following coursework: Theory of Knowledge, Extended Essay of 4,000 words, and CAS (Creativity, Action, Service).
IBO video about the IB Diploma Programme