Keeping a 7 in IB Math AA HL: where marks are lost in Year 2

How is IB Math AA HL assessed?

Your final grade comes from four parts. According to the IB's subject brief for Mathematics: analysis and approaches, the HL weightings are:

The IB has announced a revised course with first teaching in August 2027 and first assessment in May 2029. Students writing exams in 2027 or 2028 are on the current course, so check the guide and past papers your teacher gives you rather than material written for the new one.

Grade boundaries are set after each exam session, so no fixed percentage guarantees a 7. The safest target is a strong, consistent performance across all four components.

Why do strong students lose marks on Paper 1?

Paper 1 is where calculator habits show. A student who checks every step on a graphing calculator in class can understand a question fully and still run out of time factorising, simplifying logarithms, or evaluating exact trigonometric values by hand.

• Do a short set of non-calculator questions several times a week, not only before mocks.
• Know exact values, log and exponent laws, and standard derivatives and integrals without looking them up.
• Keep answers exact unless the question asks otherwise. A decimal where an exact form is expected can cost marks.
• Sense-check each answer: is the sign reasonable, does the probability fall between 0 and 1, does the area come out positive?

Does showing working really matter if the answer is right?

Yes. IB mark schemes award method marks for correct working, and on questions that say "show that" the working is the whole point, because the answer is already given. A bare correct answer may not earn full marks, and an incorrect answer with clear method can still earn some.

Practise writing solutions as if a stranger has to follow them: state what you are finding, write the equation you are solving, and carry the result forward clearly. Proof questions, including induction and contradiction, need the same care, with every logical step written down.

How should you prepare for Paper 3?

Paper 3 is the HL-only paper, made up of two compulsory extended-response questions with a calculator. The questions typically lead you through a longer investigation in stages, so the challenge is reading carefully and using earlier parts to unlock later ones, not recalling a memorised method.

1. Work through every available past Paper 3 slowly at first, then under time.
2. After each part, ask what it has just told you and how the next part might use it.
3. If you are stuck on one part, take the given result and continue. Later parts often stand on their own.
4. Look for patterns with your calculator, then explain them algebraically.

How do you keep the exploration from hurting your exam marks?

The mathematical exploration is worth 20% of the grade, and in Year 2 it often competes with exam revision. The usual problem is not the mathematics but the timing: a topic chosen late, a draft that grows too broad, and a final version finished in the weeks meant for revision.

Agree a narrow question early, follow your school's internal deadlines, and read the assessment criteria in your teacher's guide before you write. Our article on choosing an IB Math IA topic covers how to pick one that is focused enough to score well.

Which HL topics need extra revision?

HL-only content, such as complex numbers, vectors, differential equations, and Maclaurin series, is often taught late in the course, which leaves the least time to practise it. Calculus is also the largest part of the course, and its questions often combine with functions and algebra.

Build a topic list from the guide, rate each topic honestly, and schedule the weakest ones first. Mix topics in practice sets, because exam questions rarely announce which chapter they come from.

When does an IB Math tutor help?

A tutor helps most when a student understands lessons but loses marks under exam conditions, or when HL pace leaves gaps that never get revisited. Krsna Academy offers one-to-one IB tutoring in Math AA HL and SL, online or in person, built around the student's current unit, past papers, and mark schemes. For IB Physics, Chemistry, and other sciences, see IB STEM tutoring.

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