Most Singapore students find out the ACT exists about three months before they actually need to take it. A friend mentions it, or a counsellor brings it up during one of those US university conversations, or a parent stumbles across it at 11 pm while going down an application rabbit hole. Suddenly, there’s this test you’ve never heard of, registration pages that look nothing like anything SEAB uses, and a score out of 36 that makes absolutely no sense yet.
That’s exactly who this guide is written for.
What is the ACT, actually?
It’s a standardised exam that American universities use when evaluating applicants. Run by a company called ACT Inc., it sits alongside your grades, essays, and recommendations in the application. Nearly every US college accepts it — and they treat it the same as the SAT, regardless of what anyone says about one being “better” than the other.
Something that surprises a lot of Singapore students: the ACT Test isn’t trying to be clever. No abstract reasoning traps. No logic puzzles designed to trip you up. It tests whether you’ve absorbed core academic content — grammar, mathematical reasoning, and scientific interpretation. Students here have usually been through enough schooling that the foundations are in place. The work is mostly about understanding the format and the pace.
ACT or SAT?
Walk into any international school in Singapore, and you’ll find students split pretty evenly between the two. Both are accepted equally everywhere — no university gives one an advantage over the other.
The question is really about which structure fits how your brain works.
The ACT has an optional Science section. The SAT doesn’t. ACT Maths goes further — trigonometry, more varied ground. The overall pace is noticeably faster throughout.
Students who process information quickly, or who actually enjoy interpreting graphs and data, often find the ACT clicks. Students who like more time to work through problems carefully sometimes prefer the SAT.
No description will tell you which suits you. Take a complete timed practice test for both. How you feel during each one — and what you score — will tell you more than any guide can.
Breaking down each section
English — 35 minutes, 50 questions
Five passages with underlined portions you evaluate. Does this comma belong here? Should this sentence stay or go? Is this word right for the tone? It’s basically editing work done at speed. Students with strong written English tend to find this section manageable — the one thing to watch is American punctuation conventions, which differ in small but testable ways from what most Singapore schools teach. The easier grammar questions have been removed from the new format, so English is harder to score well on now — deliberate grammar practice matters more than before.
Mathematics — 50 minutes, 45 questions
Pre-algebra through trigonometry, with geometry throughout. If you’ve done O-Level or IP Maths, most of what shows up here will look familiar. What gets people isn’t the difficulty — it’s having to do 45 questions in 50 minutes with no time to second-guess yourself. That’s the real test.
Reading — 40 minutes, 36 questions
Four passages across different genres: prose fiction, social science, humanities, and natural science. Every single answer is in the text in front of you — background knowledge is irrelevant. The section rewards finding specific information quickly and not overthinking. For many Singapore students, this is where prep time ends up being most necessary.
Science (Optional) — 40 minutes, 40 questions
Almost nothing here requires memorised science. You’re reading graphs, working through experimental summaries, occasionally watching two researchers argue opposite conclusions from the same data. It’s interpretation under time pressure. Students from Singapore’s science stream usually find the logic familiar — but the speed demands genuine practice regardless.
The core test – English, Math, and Reading – runs approximately 2 hours. Adding Science brings it to around 2 hours and 45 minutes, and Writing adds a further 40 minutes after that.
Writing — optional, 40 minutes.
One prompt, three perspectives presented, you develop your own position and engage with theirs. Many US universities no longer require this section at all. Check each school’s policy before adding it to your registration — don’t just tick the box automatically.
Logistics for Singapore students
Test centres here are usually international schools. The exam runs several times a year internationally — often in September, October, December, February, April, and June, though not every window happens every year. Check the ACT website directly for current international dates. Secondhand info goes stale.
Registration is online. You make an account, upload a photo ID, pick your centre and date, and pay in USD. One practical thing: centres fill up faster than people expect. If you’re booking within five or six weeks of a test date, your preferred venue may already be full. Give yourself more lead time than feels necessary.
Also worth knowing before you register: the score choice system lets you control exactly which sittings get reported to universities. You never have to send everything. That changes how retakes feel — less like a high-stakes one-shot, more like a tool you can use deliberately.
What scores you’re actually aiming for
Composite scores run 1 to 36. Based on the middle 50% of admitted students at different university tiers:
| University Tier | Typical ACT Range |
| Most selective (MIT, Harvard, Princeton) | 34–36 |
| Highly selective (Georgetown, UCLA, Vanderbilt) | 31–34 |
| Selective (Michigan, UNC, Purdue) | 27–32 |
| Moderately selective | 22–28 |
The composite (1–36) is now the average of just three sections: English, Math, and Reading. Science, if taken, is scored separately. A 30 puts you ahead of roughly 93% of everyone sitting the test. That’s a competitive number at a wide range of good universities. The most elite schools have a higher bar, yes — but a 30 is not a disappointing result by any reasonable measure.
How to prepare without wasting time
The problem most students run into isn’t laziness. It’s spending time on the wrong things.
Doing hundreds of practice questions without figuring out why you’re getting them wrong is genuinely one of the least useful ways to prepare. The analysis is the part that actually moves scores.
Start with a diagnostic. Before you buy anything or sign up for classes, take a full timed practice test. Your results show you exactly where the gaps are. Without that, you’re preparing without a map.
Pick a real target. Look up the mid-50% ACT range at the schools you’re seriously considering. The gap between that number and your diagnosis is what you’re working to close.
Work on specific things, not everything. The grammar rules in the ACT are limited in number and totally learnable. Maths topics you haven’t touched recently need revisiting one by one. Reading under time pressure is a skill — it gets better with timed practice, not just by reading more generally.
Use a timer every single time. Students who practise without one arrive at test day having no idea how the pacing feels. It’s a harder habit to build than it sounds. Build it anyway.
Actually learn from wrong answers. A knowledge gap, a misread question, and a timing error each need a different fix. If you’re skipping the error analysis, you’re skipping the most valuable part.
About The Princeton Review
Some students use one book, work alone, and do fine. For students targeting competitive universities, the gap between okay preparation and genuinely effective preparation usually comes down to structure and feedback.
The Princeton Review Singapore has been working specifically with standardised tests for decades — not just on what the tests cover, but on why questions are written the way they are and where students reliably fall into traps. Their preparation starts with identifying precisely where your score is leaking, then builds around fixing those specific things.
For Singapore students, the scheduling flexibility matters in practice. Running A-Levels, IB coursework, or the IP programme alongside dedicated test prep is hard to balance. Private tutoring, small group instruction, and self-paced online options mean the format can actually fit around your life.
The admissions context is useful too in a way that’s easy to underestimate. International students navigating US applications or planning to study in Australia from Singapore — often lack the background knowledge that American students just grow up absorbing — timelines, what different schools actually look for, and how international applicants are evaluated. The Princeton Review Singapore brings that context alongside test prep.
Common mistakes worth knowing about in advance
Starting three months out is normal. It’s also often not enough — most students need four months minimum, more if they’re aiming for highly selective schools.
Science is now optional and doesn’t affect your composite score, but students targeting STEM programmes or schools that specifically request a Science score still need to prepare for it. Don’t assume you can skip it without first checking your target universities’ policies — some may still want to see it, especially for STEM applicants. If you’re taking it, treat it with the same seriousness as the core sections.
The Writing section gets added to registrations out of habit. Actually check whether your target universities still require it — many don’t anymore — before paying for it and spending test-day energy on it.
Using only one book leaves gaps. Real ACT practice tests should be part of whatever preparation looks like, not an afterthought.
To finish
Singapore students are generally not short on work ethic. That’s not where things go wrong. What the ACT actually rewards — beyond knowing the content — is preparation that’s honest about where the weaknesses are and targeted enough to address them directly. Students who do that, with enough lead time and a clear target, outperform students who simply put in more hours without direction. The test is learnable. The score is reachable. It starts with an honest look at where you currently stand.