How to Make Sense of the SEC G3 Mathematics Syllabus in Singapore

The SEC G3 Mathematics syllabus (K310) is the official SEAB document for Mathematics at G3 level in Singapore’s Secondary Education Certificate. This guide explains what the K310 syllabus says, how the two papers work, what each strand covers and how families can use the document well.

How to use this examination reference: Use this reference to find K310 paper timings, marks and assessment objectives quickly. The main guide teaches how to reason from algebra, geometry, statistics and real-world mathematical information. This page remains a focused explanation of the published paper specification; it is not a substitute for the student’s school advice or the SEAB examination document.

The syllabus is official.

It is precise, and it is dense.

Many families do not read it closely.

Once you know how it is organised, it becomes a useful map.

This guide is useful for families who need to:

understand what the G3 Mathematics examination assesses;
see how the two papers are set and marked;
check the full list of 18 topics; or
plan revision against the official document.

At eduKateSG, we read the syllabus document when planning lessons, so that practice matches the topics and the paper format.

Arrange a parent–student consultation with eduKate Singapore

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SEC G3 Mathematics Syllabus at a Glance

Syllabus code: K310
Code for reference (2026 and earlier): 4052, as shown on the SEAB listing page
Who it is for: school candidates taking Mathematics at G3 level in the SEC examination
Examination year of this document: 2027
Papers: 2 (Paper 1 and Paper 2)
Total time: 4 hours 30 minutes (2 hours 15 minutes per paper)
Total marks: 180 (90 per paper)
Calculator: an approved calculator may be used in both papers
Formulae: relevant formulae are provided
Where to download: the SEAB 2027 SEC G3 syllabuses page

This guide is based on the SEAB syllabus document examined in 2027. SEAB can update syllabuses, so always check the latest version on the SEAB website.

What the Syllabus Is For

The document says the syllabus gives students fundamental mathematical knowledge and skills.

It also stresses mathematical processes such as reasoning, communication and application, including the use of models. The document says these are emphasised and assessed alongside the content.

In plain words, the syllabus aims to help students:

learn mathematical concepts and skills for continuous learning in mathematics and for other subjects;
develop thinking, reasoning, communication and problem-solving skills;
connect ideas within mathematics, and between mathematics and other subjects; and
build confidence and interest in mathematics.

SEAB’s 2027 listing pages show Mathematics at three subject levels: G1 (K110), G2 (K210) and G3 (K310). The K310 document itself does not describe what comes before or after it.

The G3 aims are worded much like the G2 aims. The G1 aims, by contrast, speak of students bound for post-secondary vocational education.

How the Examination Is Structured

Paper 1

Duration: 2 hours 15 minutes
Marks: 90
Weighting: 50%
Questions: about 26 short-answer questions
Choice: none, all questions must be answered

Paper 2

Duration: 2 hours 15 minutes
Marks: 90
Weighting: 50%
Questions: 9 to 10 questions of varying marks and lengths
Last question: applies mathematics to a real-world scenario
Choice: none, all questions must be answered

Paper 1 is made up of many short questions. Paper 2 has fewer questions of varying length, and ends with an extended real-world problem.

The syllabus does not say which strands each paper covers. Candidates should bring geometrical instruments for both papers.

What the Syllabus Covers

Number and Algebra

N1 numbers and their operations;
N2 ratio and proportion;
N3 percentage;
N4 rate and speed;
N5 algebraic expressions and formulae;
N6 functions and graphs;
N7 equations and inequalities;
N8 set language and notation; and
N9 matrices.

Geometry and Measurement

G1 angles, triangles and polygons (here G1 to G7 are topic codes, not subject levels);
G2 congruence and similarity;
G3 properties of circles;
G4 Pythagoras’ theorem and trigonometry;
G5 mensuration;
G6 coordinate geometry; and
G7 vectors in two dimensions.

Statistics and Probability

S1 data handling and analysis; and
S2 probability.

The strands are listed separately, but the document envisages that some questions, including the extended real-world problem at the end of Paper 2, may combine ideas from more than one topic.

Real-World Contexts

The syllabus lists everyday contexts such as travel and excursion plans, transport schedules, sports and games, recipes, floor plans and navigation. It also lists personal and household finance, including simple and compound interest, taxation, instalments, utilities bills and money exchange.

Students may need to interpret data from tables and graphs, including distance-time and speed-time graphs.

How G3 Differs from G1 and G2

G3 has 18 topics. Set language and notation, matrices, and vectors in two dimensions appear as topics in G3 only. G2 Mathematics (K210) has 15 topics and G1 Mathematics (K110) has 13.

The G3 papers are the longest of the three: 2 hours 15 minutes and 90 marks each, compared with 2 hours and 70 marks for G2, and 1 hour 30 minutes and 50 marks for G1.

Unlike G2, which offers a choice of one question from two in Section B of Paper 2, G3 has no choice of questions.

What the Examiners Are Looking For

The syllabus gives three assessment objectives, with approximate weightings:

AO1, use and apply standard techniques (about 45%): recall facts, terminology and notation, read information from tables, graphs, diagrams and texts, and carry out routine procedures
AO2, solve problems in a variety of contexts (about 40%): pick the right concept, rule or formula, translate information, make connections across topics and interpret results in context
AO3, reason and communicate mathematically (about 15%): justify statements, explain answers in context and write mathematical arguments

Problem solving and reasoning together carry about 55%, more than standard techniques. G1 weights AO1 at 65% and G2 at 60%, so G3 gives the most weight to AO2 and AO3 of the three.

Working matters. The document states that leaving out essential working will lose marks.

Answers that are not exact should be given to 3 significant figures, or 1 decimal place for angles in degrees, unless the question says otherwise.

How to Read the Syllabus Document

Introduction (page 3): the purpose, the three strands and the mathematical processes
Aims (page 3): what the course hopes students will gain
Assessment Objectives (page 3): AO1 to AO3 and their weightings
Scheme of Assessment (page 4): the two papers, plus notes on working, accuracy, units and π
Problems in Real World Contexts (page 4): the kinds of contexts used in questions
Use of Calculators (page 5): the calculator rule
Subject Content (page 5): topics N1 to S2, with what students should be able to do
Mathematical Formulae (page 12): the formulae provided, under compound interest, mensuration, trigonometry and statistics
Mathematical Notation (page 13): the symbols used in the examination

Common Misunderstandings

“G3 Mathematics is mostly about routine techniques.”

Standard techniques carry about 45%. Problem solving and reasoning together carry about 55%.

“There is a choice of questions, as in G2.”

There is not. Candidates must answer all questions in both Paper 1 and Paper 2.

“Only the final answer counts.”

The syllabus states that omitting essential working results in a loss of marks. It also sets rules on accuracy and on the value of π.

“The formula list covers every formula needed.”

The list covers compound interest, mensuration, trigonometry and statistics. Any formula not on it has to be remembered.

How Students Can Use the Syllabus

1. Make a topic checklist

List the 18 topics from N1 to S2. Mark each one as secure, shaky or not yet learnt.

2. Give the G3-only topics their own time

Set language and notation, matrices, and vectors in two dimensions are topics only at G3. Make sure each has been practised.

3. Study the formula list

Learn where each formula is used, and which formulae are not on the list.

4. Practise the extended real-world problem

Work through longer problems on finance, travel and data, and explain answers in the context of the problem.

5. Show working and check accuracy

Write the essential steps and reasoning, then round to 3 significant figures, or 1 decimal place for angles in degrees, unless told otherwise.

How Parents Can Help

download the K310 syllabus and keep a copy at home;
ask your child to show you the topic checklist once a month;
check that an approved calculator and geometrical instruments are ready for both papers;
encourage timed practice of full papers of 2 hours 15 minutes; and
look at marked work with your child, focusing on missing working and reasoning rather than only the score.

How eduKateSG Uses the Mathematics Syllabus

we map each student’s school work against the K310 topic list;
we plan timed practice in the format of Paper 1 and Paper 2;
we check working, accuracy and units against the notes in the syllabus;
we use the assessment objectives to give problem solving and reasoning the time they need; and
we check the SEAB website for the latest version of the syllabus.

Class Details

Format: Premium 3-pax small-group tutorials

Levels: Secondary 1 to Secondary 4

Subjects: English, Mathematics and Additional Mathematics

Subject levels: G1, G2 and G3 support, according to readiness and school programme

Duration: 1.5 hours weekly

Teaching approach:

diagnosis before teaching;
clear explanation from first principles;
guided and independent practice;
retrieval and mixed revision;
error analysis; and
alignment with school assessments and the SEC format.

Limited trial lessons may occasionally be available when the 3-pax class configuration permits. The usual first step is a parent–student consultation.

What Parents Can Bring to the Consultation

Useful materials include:

a copy of the syllabus, or its code;
recent test papers and weighted assessments;
the latest report book;
the school’s assessment schedule; and
examples of questions the student finds difficult.

We are not only looking at the score.

We are looking for patterns.

Frequently Asked Questions

How many papers are there in SEC G3 Mathematics?

There are two papers. Each lasts 2 hours 15 minutes, carries 90 marks and is worth 50% of the total.

Is a calculator allowed in G3 Mathematics?

Yes. The syllabus states that an approved calculator may be used in both Paper 1 and Paper 2. It does not list which models are approved.

Are formulae given in the examination?

Yes. The syllabus states that relevant formulae will be provided. The list covers compound interest, mensuration, trigonometry and statistics.

Can students choose which questions to answer?

No. Candidates are required to answer all questions in both papers.

Is the syllabus the same as what my child’s school teaches?

The syllabus sets out what the examination assesses. It does not say how or when schools teach each topic, so ask the school about its own scheme of work.

Where do I download the K310 syllabus?

It is on the SEAB 2027 SEC G3 syllabuses page. The page lists 4052 as the code for reference for 2026 and earlier.

Helpful Reading

The eduKateSG Syllabus Series

Plain-language guides to SEAB syllabuses, from PSLE to A-Level. More guides are being added.

Primary (PSLE)

Secondary (SEC)

Junior College (A-Level)

SEC G3 Mathematics Syllabus: A Map for Two Papers

The syllabus is not a textbook.

It is a map of what the examination can ask.

Two papers. Three strands. Eighteen topics.

Read it once properly, and every topic has a place.

Then practise the reasoning, not only the steps.

Show the working, check the accuracy, and keep going steadily.

Arrange a Parent–Student Consultation

Speak with us about your child’s level, recent results, learning gaps and the dates ahead.

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How to Make Sense of the SEC G3 Mathematics Syllabus in Singapore | K310 Papers, Topics and Marks