The IB Diploma Programme is a challenging two-year pre-university course for students aged 16 to 19.
You can find information about the structure of the IB Diploma and the subject briefs with more info here: Diploma Programme Curriculum(Link leads to external service).
In Finnish schools, DP studies are preceded by a preparatory year, during which students take upper secondary school courses in accordance with the Finnish national system. However, the language of instruction is English.