IB Maths AA or AI: The Choice That Shapes Your Exams

Before asking which IB maths course is harder, ask what happens when the calculator has to stay in your bag.

In Mathematics: Analysis and Approaches, Paper 1 is completed without a calculator at both SL and HL. Applications and Interpretation requires technology across its examination papers. That distinction appears in the IB’s official AA and AI assessment outlines.

You are choosing more than a collection of topics. You are choosing how you will practise, what you must demonstrate under timed conditions, and which university requirements your qualification can meet.

Start with those consequences, not the reputation attached to each course.

Start With the Exam Papers You Will Actually Sit

The four options are AA SL, AA HL, AI SL and AI HL. The IB lists November 2028 as the final assessment of the current courses. The patterns below follow those subject briefs, with durations checked against the IB’s November 2026 timetable.

AA SL: Paper 1 lasts 90 minutes, prohibits calculators and contributes 40% of the final grade. Paper 2 also lasts 90 minutes, requires technology and contributes another 40%. Both papers include short and extended response questions.

AA HL: Paper 1 lasts 120 minutes without a calculator. Paper 2 lasts 120 minutes with technology. Each contributes 30%. Paper 3 requires technology, contains two extended problem solving questions and contributes 20%. Its duration in the 2026 timetable is 75 minutes.

AI SL: Paper 1 lasts 90 minutes and consists of short response questions. Paper 2 lasts 90 minutes and contains extended response questions. Technology is required for both, and each contributes 40%.

AI HL: Paper 1 and Paper 2 each last 120 minutes and contribute 30% each. Paper 1 uses short response questions; Paper 2 uses extended response questions. Paper 3 contains two extended problem solving questions, contributes 20% and lasts 75 minutes in the 2026 timetable. All three require technology.

Across all four courses, the mathematical exploration, your internal assessment, contributes the remaining 20%, as specified in the AA and AI briefs.

Be careful with older summaries: some original briefs still show a 60 minute HL Paper 3. Use the current timetable for your examination session rather than copying that older duration.

Your examination year matters. Revised courses begin teaching in 2027, with first assessment in May 2029. The published AA updates and AI updates change HL Paper 3 to 60 minutes and revise the internal assessment criteria. Confirm which syllabus applies before choosing resources.

Maths AA vs AI: What the Difference Feels Like

The two pathways are not a choice between doing mathematics and avoiding it. Both cover number and algebra, functions, geometry and trigonometry, statistics and probability, and calculus, as summarised in Lanterna’s subject breakdown.

Revision Village’s subject selection guide draws a useful distinction: AA emphasises algebraic manipulation, mathematical arguments and analysis, while AI places greater emphasis on modelling, data, interpretation and technology.

At AA SL, expect to develop algebraic fluency and work with functions and calculus while explaining mathematical reasoning. Consider whether you enjoy following an argument and can build reliable methods without depending on numerical calculator output.

At AA HL, those demands deepen. The current AA syllabus allocates substantially more teaching time to calculus, geometry and trigonometry than at SL. Ask whether sustained symbolic work interests you enough to practise it consistently.

At AI SL, the emphasis is on applying mathematics and interpreting results in context. Our advice is to look beyond calculator confidence: can you explain what an answer means and whether it makes sense?

At AI HL, the applied emphasis remains, but the mathematical demands increase substantially. The current AI syllabus includes considerably more calculus and statistics than AI SL. Do not treat it as a way to avoid advanced mathematics.

These descriptions are starting points for discussion with your teacher, not recommendations based on university plans you have not yet checked.

HL vs SL Is a Separate Workload Decision

Choosing AA or AI does not settle whether you should take Higher Level.

The IB recommends 150 teaching hours for SL and 240 for HL in both maths pathways. That is 90 additional teaching hours, not an estimate of homework. The allocations are set out in the official subject briefs.

Revision Village makes the distinction plainly: HL is not just “the same course but harder questions.”

There is more content to learn, and the additional examination paper changes what preparation must cover. Your decision therefore needs to account for the rest of your diploma, not simply whether you were strong at maths last year.

Before choosing HL, ask your teacher to identify the specific strengths and gaps in your recent work. Are errors coming from algebra, unfamiliar questions, interpreting information or explaining your method? A single overall grade does not answer those questions.

Then look at your other subjects and commitments. Our recommendation is to make room for the work HL requires rather than assuming you will somehow absorb it later.

Considering an additional Higher Level subject? Read our guide to taking four HLs in the IB before finalising the combination.

What Universities Actually Require

Lanterna’s maths choice guide encourages students to consider future university study alongside their mathematical interests. Take that advice one step further: check the exact degree, institution and entry year.

Broad statements such as “computer science requires AA” or “AI is accepted for economics” are not reliable substitutes for published requirements.

At LSE, the undergraduate entry requirements require AA HL for BSc Data Science. For BSc Economics, LSE considers both HL pathways but describes AA HL as preferred or desirable.

Meanwhile, Oxford’s Computer Science department accepts either AA HL or AI HL without preference between them, with a grade 7 in HL mathematics among its stated IB conditions.

These are examples of different requirements, not a ranking of the courses. They also show why required, preferred and accepted must not be treated as interchangeable.

For each degree on your shortlist, record the accepted maths pathway, required level, required grade and intended entry year. Keep the official link beside the information. Where wording is unclear, ask admissions before committing.

Do not assume that a high SL grade substitutes for a stated HL requirement. Equally, do not add HL solely because someone says universities always prefer it.

Requirements can change. Check the university’s current course page for your intended intake, even when an older guide names the same institution. Our DP subject choices and university requirements guide provides a broader planning framework.

When Is It Too Late to Switch IB Maths?

Do not plan around a universal deadline quoted online. Ask for your school’s written subject change policy before you need it.

For a concrete example, EF Academy Oxford’s IB handbook, page 8, allows subject changes during the first four to six weeks. After that, changes are generally not permitted because of missed content and established teaching arrangements. That is one school’s policy, not an IB deadline that applies everywhere.

Our practical recommendation is to raise concerns during the opening weeks of DP1, rather than waiting until the end of the first year.

Early in DP1, bring actual classwork and assessment feedback to a meeting with your teacher and coordinator. Discuss whether the issue is course suitability or a specific skill that needs support. Confirm the school’s deadline and the work a move would require.

Later in DP1, do not assume permission is still available. Ask for a comparison of the topics each class has already covered, a realistic plan for catching up, and confirmation that the proposed timetable works.

In DP2, request an individual review rather than relying on a general promise. Ask the coordinator to check examination registration, internal assessment suitability, predicted grades and any implications for university applications or offers.

Changing from HL to SL within one pathway is a different proposal from moving between AA and AI. Based on their distinct syllabuses, switching pathways requires checking content differences, not merely removing harder questions.

Before any change, ask the coordinator to confirm that your full diploma subject combination remains valid.

Make the Choice With Evidence, Not a Label

Before signing a subject selection form, gather three things: the paper structure for your examination year, the requirements of plausible university courses, and feedback on your own mathematical work.

Ask your teacher for sample questions drawn from material you have already studied. Try them under the relevant calculator conditions, then discuss what your working reveals. Do not judge your suitability using a full paper packed with topics you have never been taught.

For ongoing Diploma study support, explore Koncepts for DP students.

The useful question is not simply, “Which IB maths should I take?” It is, “Which course meets my likely requirements, suits the mathematical work I am prepared to do, and remains manageable within my diploma?”

Answer that while your school still has room to act.