It's May. Your IB Maths exam papers are days away. For many students at Hong Kong's international schools, this week brings a mix of sharp focus, nervous energy, and that nagging feeling there's never enough time to revise everything. Here's the truth: at this point, how you spend your final days matters more than how many hours you log. This guide gives you a clear, tactical plan to squeeze every last mark out of your IB Maths exam.

Prioritise High-Yield Topics, Not Everything at Once

With limited days left, you cannot revise the entire syllabus equally. Instead, focus your energy on the topics that appear most consistently across past papers:

  • Calculus β€” differentiation and integration appear in almost every paper
  • Trigonometry β€” identities, the unit circle, solving equations
  • Statistics and probability β€” Normal and Binomial distributions for both AA and AI
  • Algebra β€” sequences, series, logarithms, and exponentials

For AA HL students, prioritise complex numbers and proof by induction β€” these carry significant marks and are frequently tested. For AI HL students, statistical hypothesis testing (chi-squared, t-tests) and calculus applications are worth extra attention in the final stretch.

A practical final-week check: open your formula booklet and ask yourself, "Can I confidently use every formula on this page?" Any formula you hesitate on is your next revision task.

Master the Formula Booklet β€” It's Your Best Friend

The IB provides a formula booklet in the exam, but students who aren't familiar with it waste precious minutes flipping pages under pressure. In your final days, drill these core formulas until they're second nature:

  • The quadratic formula: $$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$
  • Derivatives and integrals of standard functions (polynomials, $\sin x$, $\cos x$, $e^x$, $\ln x$)
  • The binomial theorem: $$(a+b)^n = \sum_{k=0}^{n} \binom{n}{k} a^{n-k} b^k$$
  • Sum of geometric series: $$S_n = \frac{a(1 - r^n)}{1 - r}$$

The formula booklet is not a crutch β€” it's a reference tool for students who already understand the material. Know where each formula lives and, more importantly, know when to use it.

Paper 1 vs Paper 2 β€” Adjust Your Approach

IB Maths is split across papers with very different demands. Make sure your preparation reflects both.

Paper 1 (No Calculator) demands algebraic fluency and clean arithmetic. A sign error here can unravel an entire question β€” so write every step clearly, even when the working feels obvious. Practise simplifying expressions quickly and accurately without reaching for a calculator.

Paper 2 (GDC Required) rewards students who know their calculator deeply. Before your exam, make sure you can:

  • Solve equations numerically using your GDC's solver function
  • Draw and analyse graphs, including finding intersections and turning points
  • Compute statistical values β€” mean, standard deviation, regression lines

For AA and AI HL students sitting Paper 3, treat it like a mini-investigation. Marks come from clear reasoning and method β€” not just the final answer. Every line of logical working counts.

Exam Technique That Earns Marks

Experienced IB tutors know that exam technique alone can be worth 5–10 marks on a paper. Here's what makes the difference:

  1. Read the question twice. The number of marks signals how much working to show. A 6-mark question expects at least 3–4 lines of clear, justified working.
  2. Don't abandon a question because you're stuck on one part. Many IB questions allow you to attempt part (c) independently of part (b). Move on, come back, collect the marks you can.
  3. State your statistical conclusion in words. For hypothesis testing: "Since the p-value (0.028) < 0.05, we reject Hβ‚€ at the 5% significance level. There is sufficient evidence to suggest..."
  4. Sense-check your answers. An optimisation problem asking for a maximum area should give a positive number. A probability must lie between 0 and 1. These checks take seconds and catch common errors.
  5. Use your rough work space. Never attempt complex algebra or integration in your head during an exam. Write it out β€” clearly and completely.

The Night Before and Exam Morning

How you spend the 18 hours before your exam matters more than most students realise.

The night before: Stop heavy revision by 9 PM. Do a light skim of your summary notes β€” reinforcement only, no new material. Lay out your equipment: GDC (with fresh or spare batteries), pencils, ruler, pens. Then sleep. Seriously β€” memory consolidation happens during sleep, and a well-rested brain processes information faster and more accurately than an exhausted one.

Exam morning: Eat a proper breakfast. Blood sugar stability genuinely affects concentration during a 2-hour paper. Arrive early enough to settle in without rushing. If anxiety spikes, take three slow, deliberate breaths β€” it works, and no one has to know you're doing it.

Common Last-Minute Mistakes to Avoid

After more than a decade tutoring IB students in Hong Kong, these are the mistakes we see most in the final week:

  • Trying to learn a new topic the night before. This creates confusion, not confidence. Stick to strengthening what you already know.
  • Skipping past paper mark schemes. Mark schemes reveal exactly how marks are awarded. Method marks are available even when the final answer is wrong β€” many students don't realise this until it's too late.
  • Rushing through written working. IB Maths rewards clearly presented solutions. A rushed, illegible answer loses marks even when the mathematics is correct.
  • Memorising formulas without understanding them. If you can't explain why you're applying a formula, you'll struggle the moment the question is worded differently from what you practised.

You're More Ready Than You Think

Whatever predicted grade you're carrying into exam week, this is where preparation meets performance. Students who approach the final days with calm focus and smart strategy consistently outperform their own expectations. The groundwork is already laid β€” now it's about executing.

At A Star Academy, we've helped hundreds of IB students in Discovery Bay and across Hong Kong achieve the grades they were aiming for. If you'd like last-minute targeted support β€” whether it's a particular topic, exam technique, or just building confidence β€” we're here.

Ready to achieve your academic peak? Book a free trial lesson with A Star Academy β€” email us at [email protected]