For Sec 4 leavers
Two weeks of real JC1 lessons in six subjects at Higher Nucleus, a centre led by ex-MOE teachers.
Cells, genes, energy and evolution, explained in precise written answers and applied to unfamiliar data.
Bonding, energetics and organic reactions, linked across topics rather than learnt one by one.
Twenty topics from mechanics to quantum physics, built on a few core principles applied to new situations.
Calculus, vectors, complex numbers and statistics, examined in two 3-hour papers.
A new subject for many students: case studies and essays on markets and the economy.
Essays and comprehension on real-world issues, from science and technology to politics.
The Pre-JC Bridging Programme is Higher Nucleus Learning Studio's two-week programme for students who have just finished Sec 4 and are heading to junior college. In January 2027 (exact dates to be announced), students attend real JC1 lessons in H2 Biology, H2 Chemistry, H2 Physics, H2 Mathematics, H2 Economics and General Paper at Higher Nucleus, a centre led by ex-MOE teachers, so they know what each subject is really like before choosing a combination and starting JC1.
JC subjects go deeper than O-Level subjects, move faster, and are examined differently. Four changes stand out:
How each subject taught at HNLS is examined at A-Level, from SEAB's published syllabuses.
| Subject | Papers | How it is examined | Practical exam | What it is like |
|---|---|---|---|---|
| H2 BiologySyllabus 9744 | 4 | Multiple choice (15%); Structured questions (30%); Long structured and free-response (35%); Practical (20%) | Yes, 20% | Cells, genes, energy and evolution, explained in precise written answers and applied to unfamiliar data. |
| H2 ChemistrySyllabus 9729 | 4 | Multiple choice (15%); Structured questions (30%); Free-response questions (35%); Practical (20%) | Yes, 20% | Bonding, energetics and organic reactions, linked across topics rather than learnt one by one. |
| H2 PhysicsSyllabus 9478 | 4 | Multiple choice (15%); Structured questions (30%); Longer structured questions (35%); Practical (20%) | Yes, 20% | Twenty topics from mechanics to quantum physics, built on a few core principles applied to new situations. |
| H2 MathematicsSyllabus 9758 | 2 | Pure Mathematics (50%); Pure Mathematics and Statistics (50%) | No | Calculus, vectors, complex numbers and statistics, examined in two 3-hour papers. |
| H2 EconomicsSyllabus 9570 | 2 | Case studies (40%); Essays (60%) | No | A new subject for many students: case studies and essays on markets and the economy. |
| General PaperSyllabus 8881 | 2 | Essay (50%); Comprehension (50%) | No | Essays and comprehension on real-world issues, from science and technology to politics. |
Formats are from the latest syllabuses SEAB has published (listed under Sources). Students starting JC1 in 2027 sit the A-Levels in 2028, so check SEAB for the 2028 versions when they are released.
H2 Biology (SEAB syllabus 9744) is built around four Core Ideas: The Cell and Biomolecules of Life, Genetics and Inheritance, Energy and Equilibrium, and Biological Evolution. Two Extension Topics, Infectious Diseases and the Impact of Climate Change on Animals and Plants, apply those ideas to real-world problems and together make up about 10% of the curriculum.
The step up from O-Level is mostly in depth, and in how you are asked to use what you know. Paper 3 gives you stimulus material, which may be adapted from a scientific journal and may not relate directly to the syllabus, and asks you to analyse data, justify decisions and draw conclusions. Its free-response question is worth 25 marks, and the quality of your scientific argument and written communication counts towards the mark. The practical exam, Paper 4, is worth 20% of the grade; our guide to H2 Biology Paper 4 explains how it works.
It tends to suit students who enjoy understanding how living systems work and can write precise, well-organised explanations. In the Bridging Programme, H2 Biology is taught by Alex Xu, who also teaches it in our weekly Biology classes.
SEAB designs Biology as one continuum: O-Level explains how life works at the physiological level, and H2 explains it at the cellular and molecular levels. H2 does not teach O-Level topics again; it assumes them, either from O-Level Biology or from a combined science course.
| O-Level Biology (6093) | H2 Biology (9744) | |
|---|---|---|
| Exam | 3 papers, 4 h 35 min in total | 4 papers, 7 h 30 min in total |
| Multiple choice | 40 questions, 30% of the grade | 30 questions, 15% of the grade |
| Practical exam | Paper 3, 1 h 50 min, 20% | Paper 4, 2 h 30 min, 20% |
| Level of explanation | How life works at the physiological level | How life works at the cellular and molecular levels |
H2 Chemistry (SEAB syllabus 9729) is organised around three Core Ideas: Matter, Structure and Properties, and Transformation. The content runs across 13 topics, from Atomic Structure and Chemical Bonding through Chemical Energetics, Reaction Kinetics and Chemical Equilibria to Organic Chemistry, Electrochemistry and an introduction to the chemistry of transition elements.
The biggest change from O-Level is that topics stop standing alone. The syllabus states that the structured and free-response papers will require you to integrate knowledge from different areas of the syllabus, so an organic chemistry question can lean on bonding or energetics. Paper 2 includes data-based questions worth 20 to 25 marks, Paper 3 lets you choose one of two 20-mark questions in Section B, and the practical exam, Paper 4, is worth 20% of the grade.
It tends to suit students who like explaining why reactions happen, not just what happens, and who are comfortable with calculations. In the Bridging Programme, H2 Chemistry is taught by Low Kwee Peng and Dr Reginald Thio, who also teach it in our weekly Chemistry classes.
H2 Chemistry assumes O-Level Chemistry, from the pure subject or a combined science course, and the syllabus says it places less emphasis on factual material and more on understanding and applying concepts. Several topics are new or go much further: O-Level only asks you to state that some reactions are reversible and leaves out Le Chatelier's principle, while H2 has a full topic on chemical equilibria.
| O-Level Chemistry (6092) | H2 Chemistry (9729) | |
|---|---|---|
| Exam | 3 papers, 4 h 35 min in total | 4 papers, 7 h 30 min in total |
| Multiple choice | 40 questions, 30% of the grade | 30 questions, 15% of the grade |
| Practical exam | Paper 3, 1 h 50 min, 20% | Paper 4, 2 h 30 min, 20% |
| New or much deeper at H2 | Not in the syllabus, or covered only briefly | The gaseous state; theories of acids and bases; chemical equilibria; Gibbs free energy and entropy; chemistry of aqueous solutions; transition elements |
H2 Physics (SEAB syllabus 9478, 2027 examination) covers 20 topics in six sections: Foundations of Physics, Mechanics, Waves, Thermal Physics, Electricity and Magnetism, and Modern Physics, which ends with quantum and nuclear physics.
The first section sets up ideas about forces, motion, energy and fields that the later sections build on, so a shaky foundation shows up again in mechanics and in electricity and magnetism. Paper 2 includes one or two data-based questions, Paper 3 has a 55-mark compulsory section followed by a choice of one from two 20-mark questions, and the practical exam, Paper 4, is worth 20% of the grade.
It tends to suit students who enjoy mathematical reasoning and solving problems from first principles. In the Bridging Programme, H2 Physics is taught by Jared Chew and Samuel Neo, who also teach it in our weekly Physics classes.
O-Level Physics covers 20 topics, from measurement to radioactivity. H2 Physics also has 20 topics, and several of them have no O-Level counterpart.
| O-Level Physics (6091) | H2 Physics (9478) | |
|---|---|---|
| Exam | 3 papers, 4 h 35 min in total | 4 papers, 7 h 30 min in total |
| Multiple choice | 40 questions, 30% of the grade | 30 questions, 15% of the grade |
| Practical exam | Paper 3, 1 h 50 min, 20% | Paper 4, 2 h 30 min, 20% |
| New at H2 | Not in the syllabus | Projectile motion; collisions; circular motion; gravitational fields; oscillations; superposition; quantum physics |
H2 Mathematics (SEAB syllabus 9758) has two sections. Pure Mathematics covers functions and graphs, sequences and series, vectors, an introduction to complex numbers, and calculus. Probability and Statistics is the second section, and it carries 60 of the 200 exam marks, or 30% of the grade.
The exam is two 3-hour papers, each worth 50%. Each paper includes a question of at least 12 marks that applies mathematics to a real-world context, such as one from science or engineering. You use a graphing calculator throughout, but the syllabus is clear that an incorrect answer without working receives no marks, so showing your method still matters. Compared with O-Level Additional Mathematics, questions are longer and more abstract, and the statistics goes well beyond what O-Level covers.
It tends to suit students who are comfortable with Additional Mathematics and willing to practise steadily. In the Bridging Programme, H2 Mathematics is taught by Terence Chia, who also teaches it in our weekly Mathematics classes.
H2 Mathematics picks up where both O-Level Mathematics and Additional Mathematics leave off. SEAB's H2 syllabus assumes knowledge of O-Level Mathematics and lists the A-Math topics it also assumes, so it does not teach them again. What changes is new content, longer exams that put more weight on problem solving, and a graphing calculator.
| O-Level Mathematics | O-Level A-Math | H2 Mathematics | |
|---|---|---|---|
| Syllabus | 4052 | 4049 | 9758 |
| Exam | 2 papers of 2 h 15 min, 90 marks each | 2 papers of 2 h 15 min, 90 marks each | 2 papers of 3 h, 100 marks each |
| Total exam time | 4 h 30 min | 4 h 30 min | 6 h |
| Content | Number and algebra; geometry and measurement; statistics and probability | Algebra; geometry and trigonometry; calculus | Pure Mathematics; Probability and Statistics (30% of the marks) |
| Statistics | Data handling and analysis; probability | None | Discrete random variables, normal distribution, sampling, hypothesis testing, correlation and linear regression |
| Vectors | Two dimensions | None | Two and three dimensions, scalar and vector products, 3D vector geometry |
| Calculus | None | Differentiation and integration | Adds Maclaurin series, integration techniques, definite integrals and differential equations |
| Calculator | Approved calculator in both papers | Approved calculator in both papers | Approved graphing calculator expected throughout |
| Weight on problem solving (AO2) | 40% | 50% | 60% |
| Weight on standard techniques (AO1) | 45% | 35% | 30% |
H2 Mathematics assumes these O-Level Additional Mathematics topics, so firm up any that were shaky before JC1 starts: quadratic functions, equations and inequalities; surds; polynomials and partial fractions; exponential and logarithmic functions; coordinate geometry in two dimensions; trigonometric functions, identities and equations; and differentiation and integration. Students who did not take A-Math have all of these to learn alongside the H2 content, so check your JC's subject requirements before choosing H2 Mathematics.
From 2027 the O-Level is replaced by the Singapore-Cambridge Secondary Education Certificate (SEC). G3 Mathematics (syllabus K310) keeps the same two-paper format and content strands as O-Level Mathematics, so this comparison still applies.
H2 Economics (SEAB syllabus 9570, 2027 examination) is a new subject for many students. It is organised into three themes: The Central Economic Problem, Markets, and The National and International Economy, covering both microeconomics and macroeconomics.
It is examined entirely in writing, in two papers of 2 hours 30 minutes. Paper 1 has two compulsory case studies worth 30 marks each (40% of the grade), with about 12 marks per case study for data response and about 18 for higher-order questions. Paper 2 sets six essays and you answer three, at least one mainly on microeconomics and one mainly on macroeconomics; each essay has a 10-mark part (a) and a 15-mark part (b), and the paper is worth 60%. The skill that takes longest to build is evaluation: weighing up arguments and reaching a reasoned judgement. Our H2 Economics guide and H1 vs H2 Economics comparison go further.
It tends to suit students who follow current affairs and enjoy structured argument. In the Bridging Programme, H2 Economics is taught by Kirby Ng, who also teaches it in our weekly Economics classes.
O-Level Economics (syllabus 2286) is examined only at schools approved to offer it, so most students meet Economics for the first time in JC1. Those who took it will recognise ideas such as demand and supply, but H2 goes further and is examined entirely through case studies and essays.
General Paper (SEAB syllabus 8881) is an H1 subject taken by most JC students alongside their H2 subjects; the alternative is H2 Knowledge and Inquiry. It has two papers of 1 hour 30 minutes, each worth 50%.
Paper 1 sets eight questions and you write one essay of 500 to 800 words on issues of local, regional and global significance, drawn from areas such as society and culture, economics, politics, the arts and humanities, science and technology, and the environment; content earns 30 marks and language 20. Paper 2 gives you three passages of about 1,200 words in total, chosen for comparative analysis, with 8 or 9 questions; content earns 35 marks and language 15. The step up from O-Level English is from describing to arguing: you need a clear position, supported with real examples and tested against other views, so regular reading of the news matters.
It tends to suit students who read widely and enjoy debating ideas, though every JC student needs it. In the Bridging Programme, General Paper is taught by Ms Ng and Ms Yee Sukyi, who also teach it in our weekly GP classes.
GP drops the editing, situational writing, listening and oral of O-Level English and concentrates on argument: a longer essay, and comprehension across three passages.
| O-Level English (1184) | General Paper (8881) | |
|---|---|---|
| Essay | Continuous writing, 350 to 500 words, choice of four topics | One essay, 500 to 800 words, choice of eight questions |
| Comprehension | Four texts, including a narrative, with an 80-word summary | Three passages of about 1,200 words in total, chosen for comparative analysis |
| Other components | Editing, situational writing, listening and oral | None: two written papers only |
| Exam time | Two written papers of 1 h 50 min, plus listening and oral | Two papers of 1 h 30 min |
Your combination decides which university courses stay open, so start from there rather than from what friends are taking.
Each subject is taught as real JC1 lessons, covering roughly one to two months of JC1 content over the two weeks.
Your subject tutor explains what the subject demands and how it fits different university plans.
H2 Biology, Chemistry, Physics, Mathematics, Economics and General Paper, so you can compare them side by side.
Classes run at our Bishan and Bukit Timah centres, with live Zoom access.
The programme runs over two weeks in January 2027, before JC1 begins. Exact dates will be announced soon.
| Pre-JC Bridging | AMP | |
|---|---|---|
| For | Sec 4 leavers heading to JC | Current JC1 students |
| Focus | What JC subjects are like, plus an early start on JC1 content | Revising JC1 content before JC2 |
| When | January 2027 (dates to be announced) | 20 Nov to 7 Dec 2026 |
| Format | Two-week programme | Stand-alone topic sessions |
| Subjects | All six HNLS subjects | Biology, Chemistry, Mathematics, Economics, GP |
Already in JC1? The Academic Mastery Programme is the one for you.
Dates are still being finalised. Register your interest and we will message you as soon as they are confirmed, along with pricing. Students taking more than one subject are handled as part of our Comprehensive JC Programme.
The Pre-JC Bridging Programme is a two-week programme by Higher Nucleus Learning Studio, a centre led by ex-MOE teachers, for students who have just finished Sec 4 and are heading to junior college. It runs in January 2027 and covers H2 Biology, H2 Chemistry, H2 Physics, H2 Mathematics, H2 Economics and General Paper, with real JC1 lessons and honest guidance on what each subject demands.
It runs over two weeks in January 2027. Exact dates will be announced; register interest on WhatsApp at 9787 3734 and we will message you as soon as they are confirmed.
JC subjects go deeper than O-Level subjects, move faster, and are examined differently. Exams are longer and join topics together, there is more writing even in the sciences, practical exams count for 20% in H2 Biology, Chemistry and Physics, and the A-Levels examine two years of content with promotional exams at the end of JC1.
H2 Biology (SEAB syllabus 9744) covers four Core Ideas: the cell and biomolecules of life, genetics and inheritance, energy and equilibrium, and biological evolution, plus two extension topics. It is examined in four papers: multiple choice (15%), structured questions (30%), long structured and free-response questions (35%) and a practical exam (20%). Expect more depth than at O-Level and more analysis of unfamiliar data.
H2 Chemistry (SEAB syllabus 9729) covers 13 topics, from atomic structure and chemical bonding to organic chemistry, electrochemistry and transition elements. It is examined in four papers: multiple choice (15%), structured questions (30%), free-response questions (35%) and a practical exam (20%). The big change from O-Level is that questions join up knowledge from different topics.
H2 Physics (SEAB syllabus 9478) covers 20 topics in six sections, from foundations of physics and mechanics to electricity and magnetism and modern physics. It is examined in four papers: multiple choice (15%), structured questions (30%), longer structured questions (35%) and a practical exam (20%). Later topics build on the foundations of forces, motion, energy and fields.
H2 Mathematics (SEAB syllabus 9758) has two sections: Pure Mathematics (functions and graphs, sequences and series, vectors, complex numbers and calculus) and Probability and Statistics, which carries 30% of the marks. It is examined in two 3-hour papers worth 50% each, using a graphing calculator. Questions are longer and more abstract than in O-Level Additional Mathematics.
H2 Economics (SEAB syllabus 9570) is a new subject for many students, covering the central economic problem, markets, and the national and international economy. It is examined entirely in writing: a case study paper (40%) and an essay paper (60%), each 2 hours 30 minutes. The hardest skill to build is evaluation: reaching a reasoned judgement.
General Paper (SEAB syllabus 8881) is an H1 subject taken by most JC students. It has two papers of 1 hour 30 minutes, each worth 50%: an essay of 500 to 800 words on one of eight questions, and a comprehension paper on three passages. The step up from O-Level English is from describing to arguing with real examples.
H2 Mathematics (syllabus 9758) assumes O-Level Mathematics and much of O-Level Additional Mathematics, then adds complex numbers, three-dimensional vectors, Maclaurin series, differential equations and statistics up to hypothesis testing and regression. It is examined in two 3-hour papers (6 hours, against 4 hours 30 minutes at O-Level), puts 60% of the weight on problem solving (40% in O-Level Mathematics and 50% in A-Math) and expects a graphing calculator.
SEAB's H2 Mathematics syllabus lists O-Level Additional Mathematics topics as assumed knowledge, including surds, partial fractions, logarithms, trigonometric identities and basic calculus, so students without A-Math have extra ground to cover. Each JC sets its own subject requirements, so check with your school.
In Biology, Chemistry and Physics the exam grows from three papers (4 hours 35 minutes) to four (7 hours 30 minutes), multiple choice falls from 30% to 15% of the grade, and the practical stays at 20%. H2 Biology moves from how life works at the physiological level to the cellular and molecular level, H2 Chemistry adds topics such as chemical equilibria and the gaseous state, and H2 Physics adds topics such as circular motion, gravitational fields, oscillations and quantum physics.
The GP essay is 500 to 800 words on one of eight questions, against 350 to 500 words on one of four topics in O-Level English. GP comprehension uses three passages chosen for comparative analysis, and there is no editing, situational writing, listening or oral. GP asks you to argue about issues of local, regional and global significance.
No. The programme is designed for students who have not settled on a combination yet. Seeing each subject taught helps you choose, and our guide to JC subject combinations shows which university courses each combination keeps open.
HNLS's regular subject tutors: Alex Xu for H2 Biology; Low Kwee Peng and Dr Reginald Thio for H2 Chemistry; Jared Chew and Samuel Neo for H2 Physics; Terence Chia for H2 Mathematics; Kirby Ng for H2 Economics; Ms Ng and Ms Yee Sukyi for General Paper.
Yes. Classes run at our Bishan and Bukit Timah centres with live Zoom access, so you can join in person or online.
The Pre-JC Bridging Programme is for Sec 4 leavers who want to see what JC subjects are like before JC1. The Academic Mastery Programme (AMP) is for current JC1 students who want to revise JC1 content before JC2.
Register interest on WhatsApp at 9787 3734 or through our contact page. We will send dates and pricing as soon as they are confirmed. Students taking more than one subject are handled as part of our Comprehensive JC Programme.
For students moving to the A-Levels from another curriculum.
