Math AA (Mathematics: Analysis and Approaches) and Math AI (Mathematics: Applications and Interpretation) replaced the old SL/HL options from May 2021 onward. Both are offered at HL and SL. Both look superficially similar — they share the same five topic headings — but the way they treat each topic, and the university paths they suit, are genuinely different.
This guide is for parents and Year 10–11 students choosing between them.
What both options have in common
Both Math AA and Math AI cover the same five topics:
| Topic | Both Math AA & Math AI |
|---|---|
| 1 · Number & Algebra | ✓ |
| 2 · Functions | ✓ |
| 3 · Geometry & Trigonometry | ✓ |
| 4 · Statistics & Probability | ✓ |
| 5 · Calculus | ✓ |
The total teaching hours are the same at each level (HL = 240 hrs, SL = 150 hrs). What changes is the emphasis within each topic.
Where Math AA and AI diverge
Number & Algebra
Math AA emphasises proof, the binomial theorem, permutations and combinations, partial fractions, complex numbers, proof by induction, contradiction and counter-example, and solutions of systems of linear equations.
Math AI focuses on financial applications (including loan repayments), simple treatment of logarithms and exponentials, complex numbers used in practical applications, matrices and their use for solving systems of equations and geometric transformations.
Statistics & Probability
Math AA covers collecting data, graphical representation, measures of central tendency, correlation and regression, probability, Bayes' Theorem, normal distribution with variable standardisation, binomial distribution, probability density functions and expectation algebra.
Math AI covers the same foundations but extends into Pearson's product-moment and Spearman's rank correlation coefficients, Chi-squared tests for independence and goodness of fit, Binomial and Poisson distributions, designing data-collection methods, tests for reliability and validity, hypothesis testing and confidence intervals.
The difference matters. AA goes deeper into the theoretical machinery; AI goes wider into applied, real-world data techniques.
Who should choose Math AA
Pick Math AA if your child is heading toward:
- Engineering (mechanical, civil, electrical, chemical, aerospace)
- Physics or pure / applied mathematics
- Computer Science (especially at top-tier universities — many require AA)
- Economics at universities like LSE, Cambridge, Warwick that prefer or require AA HL
- Actuarial science or quantitative finance
Math AA is more apt for students who plan to take Advanced Mathematics or specialise in Physics and Engineering. It builds the theoretical foundations that future university programmes in these fields assume you have.
Who should choose Math AI
Pick Math AI if your child is heading toward:
- Data Science, AI / Machine Learning, Analytics
- Business, Management, Marketing
- Social Sciences (Psychology, Sociology, Geography)
- Design, Architecture, Environmental Sciences
- Supply chain, operations, blockchain
Math AI is more preferred by IB candidates who want to integrate Mathematics with technology — careers in Data Science, blockchain engineering, supply chain management and machine learning analytics. These are future-facing skills. "Data is the next oil" is the cliché — and statistics, probability and pattern-recognition (the AI emphasis) sit at the heart of it.
Linear algebra, calculus and probability are also the foundations of machine learning. Math AI's structured introduction to statistical and matrix techniques prepares students well for applied quantitative work at university.
HL or SL?
This is the second decision, and it matters at least as much as AA vs AI.
- HL is strongly preferred or required by competitive university programmes in maths-heavy disciplines.
- SL is fine for university courses where maths is supporting rather than central.
- Math AA HL is the most demanding combination — choose it only if your child is comfortable being stretched.
We've published the full IBDP Math AI and AA HL/SL syllabus if you want the unit-by-unit details.
Common mistakes parents make
- Choosing AA for prestige. AA is not "the harder version that looks better on a transcript". It's a different subject suited to different future paths. The wrong choice at HL can cost a 6 or 7.
- Choosing AI to make life easier. AI at HL is still very demanding. Don't pick it just to dodge calculus — pick it because the applied focus matches the university path.
- Choosing too late. This decision should be made at the end of Year 10 / start of Year 11. Switching after the IBDP has started is hard.
Want a second opinion before you decide?
If your child is in Year 10 or Year 11 right now, we run a free 30-minute consultation with an IB Mathematics Examiner. Bring your university intentions, your current grades, and the question you're stuck on — we'll tell you which combination is the better bet.