Short answer: if the plan is to study engineering, physics, or theoretical maths/sciences at a top university, choose Mathematics: Analysis and Approaches (AA), ideally at HL. If the plan is business, social sciences, medicine, or a field that leans more on statistics and modelling than deep algebra, Mathematics: Applications and Interpretation (AI) is usually a sufficient and more appropriate fit.
This is based on the current IB Diploma Programme curriculum (AA and AI have been separate courses since 2019, and remain the current courses today). International Baccalaureate — Maths in the DP
How AA and AI actually differ
| Analysis and Approaches (AA) | Applications and Interpretation (AI) | |
|---|---|---|
| Focus | Algebra, calculus, theoretical proof | Statistics, modelling, technology-assisted calculation |
| Best suited for | Engineering, physics, maths, physical sciences | Business, social sciences, life sciences, medicine |
| Shared content | Both share 60 hours of common SL content before splitting into subject-specific content | |
| Levels offered | Both are available at SL and HL | |
How universities view it — especially for engineering
Many top engineering universities (particularly in the UK and Europe) tend to state or recommend AA HL more explicitly than AI HL, because AA’s content builds the deep calculus and algebra foundation that first-year engineering core modules rely on directly. Choosing AI HL and then applying to a highly competitive engineering programme may mean needing to demonstrate especially strong foundational maths grades to compensate.
Important caveat: actual requirements vary by university and by course. Always check the entry requirements page of each university you’re interested in directly — don’t assume based on general articles alone, especially for highly competitive courses like engineering or maths at Russell Group-level (or equivalent) universities.
A decision checklist
- Do you already know your target course/university? If not, choose the option that keeps the widest range of options open
- Do you prefer proving theory and solving abstract problems over interpreting data/statistics?
- Is your foundational maths (e.g. IGCSE/Pre-IB) strong enough to handle the intensity of AA HL?
- If aiming for an intensive STEM field (engineering, physics, maths), have you checked whether your target universities explicitly state AA HL?
Frequently Asked Questions
Choose the right Maths course for your university goals
Max Academia has IB Maths tutors for both AA and AI who can help plan the right course choice based on your target course/university, along with content teaching and exam preparation, one-to-one.
See the IB Programme at Max Academia or ask about a study plan on LINE
