IB DP: Internal Assessment Guide

What is Internal Assessment?

In the IB Diploma Programme, Internal Assessment (IA) is a significant piece of coursework completed in each subject. It is assessed by your teacher and moderated externally by the IB. IAs typically count for 20–30% of your final grade.

Common IA Types by Subject

• Sciences: Individual investigation (lab report) – 10 hours, 6–12 pages

• Mathematics: Exploration – an investigation into a mathematical topic of your choice

• History: Historical investigation – 2,200 words on a historical topic using primary sources

• English: Individual oral – 15-minute commentary on a literary text

Top IA Advice

• Choose a focused topic with enough available resources

• Check the IA criteria before you start – not after

• Allow time for teacher feedback and revision