Sec 3–4
O Level Chemistry
Clear, simplified explanations of every topic, concise notes and plenty of exam practice to build confidence for the O Levels.
With WilsonResults →
Chemistry specialists · O Level, IP, IB & A Level
Chemistry that finally clicks.
At Ace Brainery we don't believe in rote learning. We teach for real understanding first, because once a student truly understands the subject, studying for exams becomes much easier.
95%of students score A/B in their national exams
12+ yearssince Ace Brainery started
600+students taught
95% A/Bin national exams
4 curriculaO Level, IP, IB, A Level
Programmes
One subject. Every level that matters.
We teach only chemistry, across the four main curricula taken by Singapore students.
IP Year 3–4
IP Chemistry
For Integrated Programme students who need a strong foundation and the depth required for school assessments and beyond.
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IB Year 1–2 (Year 5–6)
IB HL Chemistry
Well-planned lessons that cover the full HL syllabus and leave time for revision before the IB exams.
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JC1–2
H2 A Level Chemistry
Complex H2 concepts broken down simply, with comprehensive notes and weekly lessons that keep you on top of school work.
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Our approach
Understand it first. Then ace the exam.
Step 1 · Understand
Simplify the concepts
Every topic is broken down until it makes sense, so students see why chemistry works, not just what to memorise.
Step 2 · Practise
Concise notes and practice
Focused notes, exam papers and techniques that help students recognise questions and answer them with confidence.
Step 3 · Support
Questions answered, even outside class
Students are encouraged to ask questions in class, after class and by text, so no doubt is left unanswered.
“I swear by Ace Brainery because if anyone can save you, it’s Mr Desmond.” Clarabelle Lim, CJC · 2022 · A Level Chemistry: A
Our tutors
Taught by chemistry specialists.
Meet the tutors behind our students’ results.
Wilson Tan
O LevelIP
Patient and familiar with the O level Chemistry syllabus, Wilson helped simplify many difficult concepts and its applications, which greatly boosted my confidence in the subject.Carolyn Chan, MGS · 2018 · O Level Chemistry: A1
Desmond Tan
IB HLH2 A Level
Desmond’s ability to explain concepts in a simple manner made it possible for me to appreciate the Chemistry concepts so much better.Wang Feng Yuan, ACJC · 2023 · A Level Chemistry: A
Timetable
2026 class schedule
2-hour weekly lessons at Clarke Quay Central.
| Class | Day | Time |
|---|---|---|
| JC2 · H2 Chemistry | Saturday | 11:30 am – 1:30 pm |
| Sunday | 11:30 am – 1:30 pm | |
| JC1 · H2 Chemistry | Saturday | 1:45 pm – 3:45 pm |
| IB Year 2 · HL Chemistry | Thursday | 7:00 pm – 9:00 pm |
| Friday | 3:00 pm – 5:00 pm | |
| Saturday | 4:00 pm – 6:00 pm | |
| IB Year 1 · HL Chemistry | Saturday | 3:30 pm – 5:30 pm |
| Sunday | 4:00 pm – 6:00 pm |
O Level and IP classes: contact us for availability and timings. To check if any class has space, just send an enquiry.
Student stories
What our students say
Kelly ChaiSMSS · 2022
“With Wilson’s help, I improved from an E8 at the start of Sec 3 to an A2 for my O Levels!”O Level Chemistry: A2
RaeAnne ChooMGS · 2020
“I joined Ace Brainery only a few months before my O Level exams, and Wilson miraculously managed to help me push my grades from a C6 to A1 within that short period of time!”O Level Chemistry: A1
Donovan GohACS Independent · 2020
“I genuinely believe that I would not have been able to turn my F9 grade at the start of 2020 to an A1 grade for O levels without Wilson’s guidance.”O Level Chemistry: A1
Joy SimACS Independent · 2022
“Due to Mr Desmond’s help, I managed to secure a 7 for Chemistry, which was something I never thought was possible.”IB HL Chemistry: 7
Renee TanACS Independent · 2021
“Desmond’s guidance has allowed me to consistently score 90 and above in all my Year 6 examinations, with a final score of 93 for my IB HL Chemistry exam, and I could not be more grateful.”IB HL Chemistry: 7
SholanRI · 2022
“In the end, I managed to improve from an E in my prelims to an A in the A Levels.”A Level Chemistry: A
Ann TanCHIJ · 2018
“From a C6 to a consistent A1, Wilson was a supportive and patient teacher throughout my time under him.”O Level Chemistry: A1
Keith LeeACS Independent · 2017
“But when Mr Wilson started teaching me in August of Sec 3 year, teaching and explaining concepts to me, things started to click.”IP Chemistry: 92.5%
HrithhishNYJC · 2022
“I can say with utmost confidence that Desmond is your guy to get you the A, as long as you’re willing to put in the effort.”A Level Chemistry: A
Nicole LeongACS Independent · 2021
“I even started to enjoy learning Chemistry, and eventually managed to get a 7 for IB.”IB HL Chemistry: 7
Carolyn ChanMGS · 2018
“In my 2 years with Wilson as my tutor, Chemistry was my strongest Science subject and I went on to score an A1 in the O level examinations.”O Level Chemistry: A1
Baey Shin YinMGS · 2021
“I am extremely grateful for Wilson's patient and easygoing nature, which makes lessons both engaging and fun for me, and I look forward to it every week.”IP Chemistry: 85%
Our centre
Right above Clarke Quay MRT.
Lessons are held at our centre in Clarke Quay Central, easy to reach from anywhere on the North East Line.
- 6 Eu Tong Sen Street, #05-09
Clarke Quay Central, Singapore 059817 - Directly above Clarke Quay MRT station (NE5)
FAQ
Common questions
Which levels do you teach?
We teach chemistry only: O Level (Sec 3–4), Integrated Programme (IP Year 3–4), IB HL Chemistry (IB Year 1–2, also called Year 5–6) and H2 A Level Chemistry (JC1–2).
Who will teach my child?
Wilson Tan teaches our O Level and IP classes, and Desmond Tan teaches our IB and A Level classes.
Where are lessons held?
At Clarke Quay Central, 6 Eu Tong Sen Street, #05-09, directly above Clarke Quay MRT station.
Can my child join in the middle of the year?
Many of our students joined mid-year, some only months before their exams. Send us an enquiry and we'll let you know which classes have space.
How do I find out about fees?
Send us an enquiry using the form below or email enquiries@acebrainery.sg, and we'll reply with fees and available slots.
Get in touch
Enquire about classes
Tell us the student's level and we'll get back to you with available slots and fees.
- enquiries@acebrainery.sg
- 6 Eu Tong Sen Street, #05-09, Clarke Quay Central, Singapore 059817