PCME/BCME– JC Subject Combinations
JC subject combinations are commonly abbreviated using the initials of H2 subjects. Two commonly offered Science stream combinations are PCME (Physics, Chemistry, Math, Economics) and BCME (Biology, Chemistry, Math, Economics). Arts stream combinations include HELM (History, Economics, Literature, Math) and GELM (Geography, Economics, Literature, Math). Students typically take 3 H2 + 1 H1 from their combination, plus compulsory H1 General Paper (GP) and Project Work (PW). Choosing the right combination depends on university course prerequisites — for example, Medicine requires H2 Chemistry with H2 Biology or Physics, while Engineering requires H2 Math — NUS lists nothing further in its central prerequisite table, and NTU usually adds one of H2 Physics/Chemistry/Biology/Computing.
E-Maths– Elementary Mathematics
Elementary Mathematics (E-Maths, also written as E Math, EMath, or colloquially Elem Maths) is a compulsory upper secondary mathematics subject in Singapore covering algebra, geometry, trigonometry, statistics, and probability. It focuses on practical mathematical applications for everyday life and provides essential quantitative skills. E-Maths is a prerequisite for most post-secondary courses and polytechnic programmes. Under Full SBB, E-Maths can be taken at G3 or G2 levels, assessed via national examinations (GCE O-Level for current cohorts; SEC under Full SBB).
A-Maths– Additional Mathematics
Additional Mathematics (A-Maths, also written as A Math, AMath, or colloquially Add Maths) is an elective upper secondary mathematics subject in Singapore covering advanced topics including calculus, differentiation, integration, trigonometric identities, logarithms, and coordinate geometry. A-Maths develops abstract reasoning skills and is strongly recommended for students pursuing Science, Engineering, or Mathematics streams in Junior College — H2 Mathematics assumes A-Maths knowledge. Under Full SBB, A-Maths is available at G3 or G2 levels, assessed via national examinations (GCE O-Level for current cohorts; SEC under Full SBB).
H1– H1 Subject
H1 (Higher 1) subjects in Singapore Junior Colleges represent a foundational level of study, requiring half the curriculum time of H2 subjects. Students typically take one or two H1 subjects alongside their H2 subjects. H1 subjects contribute to the A-Level aggregate score.
H2– H2 Subject
H2 (Higher 2) subjects in Singapore Junior Colleges represent an in-depth level of study, forming the core of A-Level preparation. Students take three or four H2 subjects. H2 subjects are prerequisites for related university courses (e.g., H2 Chemistry for Medicine).
GP– General Paper
General Paper (GP) is a compulsory H1 subject for all Junior College students in Singapore. It develops critical thinking, argumentation, and essay writing skills through analysis of current affairs, social issues, and global topics. GP is assessed through essay writing and comprehension, and contributes to university admission rank points. Strong GP performance demonstrates analytical and communication abilities valued by universities.
HCL– Higher Chinese
Higher Chinese Language (HCL, also called Higher Mother Tongue or HMT / HMTL for Chinese) is an advanced Mother Tongue subject in Singapore covering the same topics as standard Chinese but at greater depth, with more complex texts and higher writing expectations. Under the current O-Level registration rules (2026 and earlier), SEAB provides nationally for HCL students to sit the standard Chinese paper at the end of Secondary 3 and the Higher Chinese paper at the end of Secondary 4 — its registration guide states that Secondary 3 candidates offering Higher Mother Tongue "may only register for O-Level Mother Tongue Language (Year-end sitting)", and that a paper taken in Secondary 3 does not count towards the Secondary 4 subject total. Schools decide whether and how to take this up, so practice varies. From 2027 the SEC moves to a single written sitting each year for all MTL levels, and SEAB has said registration procedures for that regime will be published in 2027. Achieving a D7 or better in Higher Chinese at O-Level means a student is deemed to have fulfilled the H1 Mother Tongue requirement at A-Level and need not sit H1 MTL — though MOE expects Mother Tongue learning to continue, and H1 MTL cannot be replaced with another subject. As of 2026, eligibility for Higher Mother Tongue in Secondary 1 is based on PSLE Mother Tongue performance (AL1 or AL2 in MTL, or Distinction/Merit in HMTL at PSLE) without a specific overall PSLE score requirement. Schools also retain discretion beyond the published criteria: answering on the criteria then in force, MOE told Parliament on 18 September 2023 that secondary schools "have the flexibility to offer HMTL to students who are assessed to have strong ability and interest in MTL and are able to handle the additional workload without affecting their performance in other subjects".
MTL B– Mother Tongue Language B Syllabus
MTL B Syllabus was a less demanding Mother Tongue option for students who struggled significantly with the standard curriculum. It is closed to new secondary cohorts from the 2024 Secondary 1 cohort — those students now take Mother Tongue at G1 or G2 level under Full Subject-Based Banding — and where a legacy secondary code is still listed, SEAB notes Mother Tongue B 'is not a GCE O-Level subject'; it remains a formal offering at A-Level (Chinese B, Malay B, Tamil B) in JC/MI. Where it applies, MTL B is not counted in the L1R5 aggregate for post-secondary admission, and a pass is still required for local university admission.
Phy– Physics
Physics is a natural science subject in Singapore secondary schools covering mechanics, thermal physics, waves, electricity, magnetism, and modern physics. It is offered as Pure Physics at O-Level or as Combined Physics within Combined Science (Physics/Chemistry or Physics/Biology). Pure Physics is the usual preparation for H2 Physics, which engineering, computing, and physical science pathways at university build on. Under Full SBB, Pure Physics is a G3 subject (K323); at G2 physics is studied only within Science (Physics, Chemistry) K223 or Science (Physics, Biology) K224.
Chem– Chemistry
Chemistry is a natural science subject in Singapore secondary schools covering atomic structure, chemical bonding, acids and bases, redox reactions, organic chemistry, and energetics. It is offered as Pure Chemistry at O-Level or as Combined Chemistry within Combined Science. Chemistry pairs with Physics or Biology in the usual double Pure Science combinations, and H2 Chemistry is required at university for medicine, pharmacy, and many science courses. Under Full SBB, Pure Chemistry is a G3 subject (K324); at G2 chemistry is studied only within Science (Physics, Chemistry) K223 or Science (Chemistry, Biology) K225.
Bio– Biology
Biology is a natural science subject in Singapore secondary schools covering cell biology, genetics, ecology, human physiology, and molecular biology. It is offered as Pure Biology at O-Level or as Combined Biology within Combined Science. Pure Biology is the usual preparation for H2 Biology, which medicine, dentistry, and life science pathways at university build on. Under Full SBB, Pure Biology is a G3 subject (K325); at G2 biology is studied only within Science (Physics, Biology) K224 or Science (Chemistry, Biology) K225.
Geog– Geography
Geography is a humanities subject in Singapore secondary schools and Junior Colleges, covering physical and human geography, environmental issues, and spatial analysis. At O-Level, Geography can be taken as a full elective or as part of Combined Humanities. At A-Level, it is offered as H1 or H2 Geography. Under Full SBB, Geography can be taken at G3 or G2 levels.
Hist– History
History is a humanities subject in Singapore secondary schools and Junior Colleges, covering Southeast Asian history, modern world history, and historical investigation skills. At O-Level, History can be taken as a full elective or as part of Combined Humanities. At A-Level, it is offered as H1 or H2 History. Under Full SBB, History can be taken at G3 or G2 levels.
Lit– English Literature
English Literature (commonly abbreviated Lit) is a humanities subject in Singapore secondary schools and Junior Colleges, covering poetry, prose, and drama analysis. At O-Level, Literature can be taken as a full elective or as part of Combined Humanities. At A-Level, it is offered as H1 or H2 Literature in English. Under Full SBB, Literature can be taken at G3 or G2 levels.
SS– Social Studies
Social Studies (SS) is a compulsory humanities subject in Singapore secondary schools, forming the core component of Combined Humanities at O-Level / SEC. SS covers three main themes: understanding Singapore's governance, appreciating diversity in a multi-ethnic society, and examining globalisation and its impact. Assessment includes a compulsory source-based case study (SBQ) and compulsory structured-response questions (SRQ). G2 and G3 students take SS paired with an elective — either History, Geography, or Literature — as Combined Humanities. SS is not offered as a standalone O-Level / SEC subject.
Combined Humanities
Combined Humanities is a compulsory SEC subject in Singapore (O-Level / SEC at G3) that pairs Social Studies (SS) with one elective humanities subject — Elective History, Elective Geography, or Elective Literature. G2 and G3 students take Combined Humanities as part of the SEC examination; G1 students follow a practical humanities programme instead. The SS component accounts for roughly half the assessment, with the elective component making up the rest. Combined Humanities counts towards the L1R5 aggregate for JC admission. Students who wish to study humanities in greater depth can additionally take a full (pure) History, Geography, or Literature subject. SEAB titles the syllabus simply "Humanities (Social Studies, Geography)" — 2260 at O-Level, and from 2027 K335 at G3 and K229 at G2; "Combined Humanities", "Elective Geography" and "Elective History" are the names MOE schools and tuition centres use for the same subject.
EL– English
English (also referred to as English Language or EL) is a core subject in Singapore from Primary 1 through the end of secondary school. There is no compulsory English Language subject at Junior College: most JC students take H1 General Paper (syllabus 8881) as their English-medium paper, while H2 English Language and Linguistics (syllabus 9508) is offered by selected JCs. It covers oral communication, reading comprehension (compre), composition writing (compo), grammar, and vocabulary. At primary level, key components include grammar cloze, comprehension cloze, synthesis and transformation, and continuous writing. At O-Level, English Language (Syllabus 1184) assesses situational writing, continuous writing, and comprehension. A pass in English is required for admission to Junior College (L1R5 / L1R4); the local universities look instead at General Paper (or Knowledge & Inquiry) for A-Level applicants.
Chi– Chinese
Chinese (Mandarin) is the most common Mother Tongue Language subject in Singapore, studied from Primary 1 through secondary education. It covers oral communication, reading comprehension, composition writing, and language use. At primary level, it builds foundational literacy. At secondary level, students take Chinese at O-Level / SEC, or Higher Chinese (HCL) for advanced learners. For local university admission, NUS's published Mother Tongue Language requirement accepts D7 or better in Higher Chinese at GCE O-Level; a minimum 'S' grade in H1 Chinese Language, H1 General Studies in Chinese, or H2 Chinese Language and Literature at GCE A-Level; a pass in the Chinese 'B' Syllabus paper at GCE A-Level; in the IB Diploma, a pass in Chinese A (Literature, or Language and Literature) or Chinese B at Standard or Higher Level, though Standard Level Language ab initio does not count; a pass in an MOE-approved MTL-in-lieu subject taken at O-Level, A-Level or IB Diploma; or an MOE-approved exemption. Note that H1 General Studies in Chinese sits in the 'S' grade group, not the pass group, and that an 'S' grade is a sub-pass below grade E rather than a pass. A pass in standard Chinese at GCE O-Level alone does not satisfy the requirement. An applicant who has not met it is admitted provisionally and must satisfy it before graduating, so it is a bar on graduation rather than on entry.
MTL– Mother Tongue Language
Mother Tongue Language (MTL) is a compulsory subject in Singapore schools. The three options are Chinese (Mandarin), Malay, and Tamil, assigned based on the student's registered ethnicity. MTL is studied from Primary 1 through secondary education and assessed at PSLE and at O-Level / SEC. For local university admission, NUS's published Mother Tongue Language requirement accepts D7 or better in Higher Mother Tongue at GCE O-Level; a minimum 'S' grade in H1 Mother Tongue Language or H2 Mother Tongue Language and Literature at GCE A-Level; a pass in the Mother Tongue 'B' Syllabus paper at GCE A-Level; in the IB Diploma, a pass in MTL A (Literature, or Language and Literature) or Language B MTL at Standard or Higher Level, though Standard Level Language ab initio does not count; a pass in an MOE-approved MTL-in-lieu subject taken at O-Level, A-Level or IB Diploma; or an MOE-approved exemption. A pass in standard MTL at GCE O-Level alone does not satisfy the requirement. An applicant who has not met it is admitted provisionally and must satisfy it before graduating, so it is a bar on graduation rather than on entry. Students who struggle significantly can take Mother Tongue at a more accessible level (G1 or G2) under Full Subject-Based Banding; the former MTL B Syllabus is closed to new secondary cohorts and now survives mainly at A-Level.
Problem Sums
Problem sums is the Singapore English term for mathematical word problems that require multi-step reasoning and application of concepts. In the MOE primary mathematics syllabus, problem sums test students' ability to interpret real-world scenarios, identify the relevant mathematical operations, and work through solutions systematically. Problem sums form a significant portion of the PSLE Mathematics paper and are where most students lose marks. Common strategies include model drawing (bar model method), working backwards, and making systematic lists.
Heuristics– Heuristics for Problem-Solving
Heuristics are systematic problem-solving strategies taught in the Singapore MOE mathematics syllabus from Primary 1 to Primary 6. The MOE identifies specific heuristics that students should master, including: drawing a model or diagram, looking for patterns, working backwards, making a systematic list, guess and check, simplifying the problem, making suppositions (assumptions), and restating the problem. Heuristics are tested extensively in PSLE Mathematics and are essential for tackling non-routine problem sums.
Bar Model– Bar Model Method
The Bar Model Method is the common name for the approach MOE itself calls the Model method — its term on MOE EdTalks, not in the syllabus documents, which describe the technique as "part-whole and comparison models" without naming it. It is a visual problem-solving approach central to Singapore Mathematics. Students draw rectangular bars to represent known and unknown quantities, making abstract relationships concrete and visible. MOE's 2013 primary mathematics syllabus introduced it at Primary 2, where pupils "use the part-whole and comparison models to illustrate the concepts of addition and subtraction" in 1-step word problems; P3 extends it to multiplication and division and to equivalent fractions, P4 to word problems across the four operations, and P5 to fractions, ratio and percentage. Note that the current 2021 syllabus dropped the Learning Experiences column that named this pedagogy, so it prescribes no start year under any of these terms — the placement above comes from the superseded 2013 syllabus. The method remains a key strategy for PSLE problem sums and has been adopted internationally as part of Singapore Math curricula.
Econs– Economics
Economics is an A-Level subject offered at H1 and H2 levels in Singapore Junior Colleges. It covers microeconomics (market forces, market failure, government intervention) and macroeconomics (national income, inflation, unemployment, international trade). H2 Economics requires deeper analysis and more rigorous essay writing than H1. Economics appears in both the standard Science and Arts stream combinations (PCME, BCME, HELM, GELM) and is commonly abbreviated as Econs.
Compo– Composition Writing
Composition writing (commonly called compo by Singapore students and parents) is a key component of English and Chinese Language examinations at all levels. For PSLE, composition accounts for a significant portion of Paper 1. Students must master narrative structures (hook, rising action, climax, resolution), descriptive writing techniques, and time management. Studying model compositions (model compo) — well-written examples that demonstrate good technique — is a common revision strategy. At O-Level, composition evolves into situational writing and continuous writing. Chinese composition follows similar structures but requires proficiency in idioms and essay conventions specific to the Chinese paper.
Compre– Comprehension
Comprehension (commonly called compre by Singapore students and parents) is a key examination component in English and Chinese Language at all levels. It tests reading skills including inference, vocabulary in context, summary writing, and information retrieval. At PSLE level, comprehension includes visual text, grammar cloze, comprehension cloze, and open-ended questions. At O-Level, comprehension passages become longer and questions require more sophisticated analysis. Comprehension strategies include active reading, highlighting key points, identifying question types, and time management.
Cloze Passage
A cloze passage is a text with blanks that students must fill in, testing grammar, vocabulary, and contextual understanding. In Singapore examinations, there are three main types: grammar cloze (fill in with the correct grammatical form), vocabulary cloze (choose the best word from given options), and comprehension cloze (fill in based on understanding of the passage). Cloze passages appear in PSLE English Paper 2 and in Chinese Language papers (短文填空 at PSLE, 综合填空 at secondary and Higher Chinese); the O-Level / SEC English syllabus (1184 through 2026; K300 from 2027) tests editing and comprehension rather than a dedicated cloze section. Strategies include reading the full passage first, using context clues, checking grammatical agreement, and eliminating unlikely options.
S&T– Synthesis and Transformation
Synthesis and Transformation is an English grammar component tested in Singapore primary and secondary school examinations. In synthesis questions, students combine two or more sentences into a single sentence using conjunctions, relative clauses, or other grammatical structures. In transformation questions, students rewrite sentences while preserving the original meaning, often changing voice (active to passive), tense, or sentence type. Synthesis and Transformation is a common section in PSLE English Paper 2 and in lower-secondary English; it is not a separate section in the O-Level / SEC English paper (1184 through 2026; K300 from 2027).
PW– Project Work
Project Work (PW) is a compulsory component for all Junior College and Millennia Institute students in Singapore, completed in a team to develop collaboration, communication, and independent inquiry skills. Students produce a written report, an oral presentation, and an individual reflection. From 2026, PW is graded Pass/Fail only and no longer contributes to the University Admission Score (UAS) — a change from the previous system where it counted towards Rank Points. A Pass in Project Work is still required for admission to the local autonomous universities.
H3– H3 Subject
H3 (Higher 3) subjects are the most advanced level of study in Singapore Junior Colleges, offered to students with exceptional aptitude and interest in a particular subject. To offer an H3, a student must take the corresponding subject at H2 level, and a maximum of two H3 subjects may be taken. Unlike H1 and H2 subjects, which are graded A to E (with U for ungraded), H3 subjects are graded Distinction, Merit, Pass, or Ungraded. H3 grades do not count towards the 70-point University Admission Score (UAS); instead they are considered qualitatively for university admission and scholarships, and may earn module exemptions at university.
Combined Science
Combined Science is an O-Level / SEC science subject in Singapore in which students study two science disciplines that are assessed together for a single grade. The three combinations are Science (Physics, Chemistry), Science (Physics, Biology), and Science (Chemistry, Biology) — under the current O-Level the syllabus codes are 5086, 5087, and 5088 respectively. At O-Level (and SEC G3 from 2027) candidates sit four papers — a shared multiple-choice paper covering both disciplines, one structured theory paper for each of the two disciplines, and a shared practical paper; at G2 there is no separate practical paper, with experimental skills assessed within the written papers. Combined Science is taken by most students who do not offer Pure Sciences, and provides the foundational science knowledge needed for many post-secondary courses. Under Full Subject-Based Banding, Combined Science can be taken at G3 or G2 levels.
HMT– Higher Mother Tongue
Higher Mother Tongue (HMT, also HMTL) is the advanced level of Mother Tongue Language study in Singapore, offered as Higher Chinese (HCL), Higher Malay (HML), and Higher Tamil (HTL). It covers the same language as standard Mother Tongue but at greater depth, with more demanding texts and higher writing expectations. From the 2026 Secondary 1 cohort, eligibility for HMT is decoupled from a student's overall PSLE score: students qualify by attaining AL1 or AL2 in Mother Tongue, or Distinction or Merit in Higher Mother Tongue, at the PSLE. Schools also retain discretion beyond these criteria: MOE has said they may offer HMTL to students assessed to have strong ability and interest in MTL who can handle the additional workload. A D7 or better in HMT at O-Level grants exemption from the Mother Tongue requirement at A-Level. See Higher Chinese (HCL) for the Chinese-specific pathway.