IB or A-Levels? What I See Teaching Economics on Both Sides By Kirby Ng from KS Academia

Guest post by Kirby Ng from KS Academia.

I teach Economics on both sides of this choice. I teach H2 Economics to junior college students, and IGCSE, IB and AP Economics to international-school students. Most of the theory is the same in every system: demand and supply, market failure, inflation, trade. What differs is what each exam rewards, and that shapes how students learn to write.

This article is about those differences: how each route examines the subject, where students get stuck, and what that tells you about which route suits your child.

The same subject, examined two ways

On paper, the two systems look alike. An H2 Economics essay and an IB Economics Paper 1 question are both split into a 10-mark part and a 15-mark part. The first part asks for explanation, the second for discussion and a judgement. In practice, they ask for different habits.

1. A-Level answers are longer and more rigorous. An H2 essay is expected to build a full chain of analysis, step by step, before it weighs anything up. Students who skip steps lose marks even when their conclusion is sensible.
2. IB answers lean on evaluation. The IB rewards students who weigh up a policy or a theory and reach a supported judgement. The analysis still matters, but more of the marks sit in the discussion.
3. The examples come from different places. Real-world examples are compulsory in IB Economics: Paper 1 part (b) expects them, and the internal assessment is built around news articles the student chooses. A-Level students are expected instead to understand Singapore's characteristics, such as a small, open economy that depends on trade, and to apply them to the case or essay in front of them.

The balance shifts from topic to topic, but this is the general trend I see.

Switching between systems

Moving from IGCSE into JC is a much bigger jump than moving from IGCSE into the IB. The H2 requirements for depth and rigour in analysis are a step up from anything IGCSE asks for. Even so, students who took IGCSE Economics start JC on a better footing than classmates who are meeting the subject for the first time. They already know the language and the diagrams, and can spend their energy on the new standard of writing.

IB and A-Levels side by side

Singapore citizens and permanent residents applying to local universities still need to meet the Mother Tongue requirement on either route.

For most Singaporean families, the choice starts well before JC. Singapore citizens attend national primary schools unless granted an exemption, so the real fork comes after the PSLE. The main routes are:

1. Secondary school and the Secondary 4 national exams, then two years in junior college leading to the A-Levels.
2. The Integrated Programme, a six-year course that skips the Secondary 4 exams. Most IP schools lead to the A-Levels; a few, such as ACS (Independent), lead to the IB Diploma, and the School of the Arts offers the IB Diploma or the IB Career-related Programme.
3. The three privately funded schools, ACS (International), St Joseph's Institution International and Hwa Chong International School. They offer international curricula such as IGCSE followed by the IB, and can admit Singaporean students without a separate MOE approval. Hwa Chong International School and ACS (International) also run their own pre-IB programme alongside IGCSE.
4. Other international schools, which need MOE approval to admit a Singapore citizen.

Where students get stuck, in both systems

1. Evaluation without context. The weakest evaluation I mark looks the same in JC and IB: a general point such as "it depends on the elasticity" with nothing tying it to the case, the country or the policy in the question. Context is what turns a stock phrase into a judgement.
2. Mixed messages. Teaching approaches vary a lot from school to school, and the answers students find online often contradict what their teacher asked for, because those answers were written for a different context. Students end up knowing the content but unable to reproduce what is expected of them in class. It is harder still when English is not their first language.
3. Knowing what is wrong, but not what is right. Because of how essays are marked, a student usually learns what was missing from an answer, but not what a better answer would look like. That makes it hard to improve from one essay to the next.

What I see A-Level students struggle with

1. Everything rides on a few papers. In H2 Economics, every mark comes from two papers in October and November. A student can do well in class tests all year and still lose a grade if their timing breaks down on the day, so timed practice matters from JC1.
2. Too little essay feedback. The most common complaint I hear from JC students is that their teachers do not have time to mark all their essays. Essay writing improves through marked practice, and without it students repeat the same mistakes into JC2.
3. The jump in essay writing. Secondary school answers reward explaining a point clearly. A-Level essays ask for a full argument that reaches a judgement, and many students take most of JC1 to adjust.

What I see IB students struggle with

1. Deadlines pile up in the second year. Internal assessments in most subjects, the Extended Essay, the Theory of Knowledge essay and CAS all fall alongside exam revision. Students who plan the two years early cope far better than those who meet each deadline as it comes.
2. Treating the internal assessment as an afterthought. In IB Economics, the three commentaries are worth 20% at HL and 30% at SL, and they are the one part completed with time and feedback available. Students who leave them late give away marks they could have banked before the exams.
3. Uneven teaching. IB students often tell me about staffing gaps in their schools, with Economics sometimes taught by teachers whose main subject is Geography or another humanities subject. The student then has to fill the gaps on their own.

Two things parents tell me that I push back on

1. "A-Levels count for more locally." I would set this aside. NUS, NTU and SMU admit students from both routes, and the better question is which route your child will do well in.
2. "The IB is easier." Only for students who put in steady work from the start. The IB makes it easy to fall behind quietly, and students who are struggling often realise it only a few months, or a year, before the final exams. Catching up from there is very hard without consistent effort from the student and whoever is helping them.

Which route suits which child

If your child is already in IGCSE, I strongly encourage the IB. They continue in the same style of learning and assessment, and avoid the jump to H2. If your child is in JC, I strongly encourage taking Economics at H2 rather than H1. Economics is rarely a hard requirement for university, but it is a very useful foundation for anyone heading into business, accounting or an Economics-related degree.

Beyond that, the A-Levels tend to suit students who want depth in a few subjects and stay calm under timed exam conditions. The IB tends to suit students who work steadily across many subjects and like securing part of their grade through coursework before the exams. A few questions to discuss at home:

1. Does your child prefer a few subjects in depth, or many subjects with a wider spread?
2. How do they handle long exams compared with deadlines spread over months?
3. Which universities and courses are they considering, and do those courses need particular subjects?
4. Which route do the schools on your shortlist lead to, and how easy is it to switch later?

If your child needs extra help

Whichever route they take, the help that makes a difference addresses the problems above. When choosing a tutor, look for one who:

1. Marks written answers properly and returns them with feedback, not just a score.
2. Turns each piece of feedback into actionable steps, so your child knows what a better answer looks like, not only what was wrong.
3. Keeps notes on what was covered in each lesson, so the next lesson builds on the last.
4. Is willing to look at essays and answer questions between lessons, since that is often when students get stuck.

Planning tools for each route

For A-Level students, the 2026 A-Level exam calendar lists every paper date, and the A-Level rank point calculator shows how grades translate into the University Admission Score and past course grade profiles. For IB students, the IB exam calendar sets out the May and November sessions, and the IB points and university eligibility checker works out a diploma score from predicted grades.

Final thoughts

The IB and the A-Levels teach much the same Economics but reward different habits. Look at how each route assesses students, be honest about how your child works when no one is checking, and make sure they get feedback they can act on. The students who do well in either system are the ones who learn early what a good answer looks like, and practise it.

About the author: Kirby Ng is an Economics tutor at KS Academia Prep on Orchard Road, where he teaches IGCSE, IB and AP Economics, and also teaches H2 Economics at Higher Nucleus Learning Studio. He holds a degree in Economics from the National University of Singapore and works alongside Jason Low, who leads IB Economics tuition at KS Academia Prep.