SECONDARY 1 G2 MATHEMATICS

Strengthen core concepts and prepare confidently for progression.

Secondary 1 G2 stream focuses on balanced conceptual understanding across algebra, geometry, and data handling. Secondary 1 is a transition year where students adjust to faster-paced, more abstract mathematical thinking after primary school. Under Full Subject-Based Banding, these students will sit the Singapore-Cambridge SEC exam — a single national exam replacing O-Levels, N(A)-Levels, and N(T)-Levels — with Mathematics taken at their G1, G2, or G3 level.
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Syllabus

What we cover

Chapters12
Sub-topics41

DeepThink aligns to MOE Lower Secondary expectations while adapting pacing and scaffolding for this stream. Teaching balances conceptual clarity with steady progression so students stay secure as complexity increases.

Chapter 1Primes, Highest Common Factor and Lowest Common Multiple

  • Prime numbers
  • Square roots and cube roots
  • Highest common factor and lowest common multiple

Chapter 2Integers, Rational Numbers and Real Numbers

  • Negative numbers
  • Addition and subtraction involving negative integers
  • Multiplication, division and combined operations involving negative integers
  • Fractions and mixed numbers
  • Decimals
  • Rational, irrational and real numbers

Chapter 3Approximation and Estimation

  • Rounding and significant figures
  • Approximation and approximation errors in real-world contexts
  • Estimation and estimation errors in real-world contexts

Chapter 4Basic Algebra and Algebraic Manipulation

  • Basic algebraic concepts and notations
  • Addition and subtraction of linear terms
  • Expansion of linear expressions

Chapter 5Linear Equations

  • Linear equations
  • Applications of linear equations in real-world contexts
  • Mathematical formulae

Chapter 6Number Patterns

  • Number sequences
  • Number sequences and patterns

Chapter 7Percentage

  • Percentage
  • Percentage change, percentage point and reverse percentage
  • Percentage in real-world contexts

Chapter 8Ratio and Rate

  • Ratio
  • Rate
  • Speed

Chapter 9Angles and Triangles

  • Properties of angles formed by intersecting lines
  • Properties of angles formed by two parallel lines and transversal
  • Triangles

Chapter 10Perimeter and Area of Plane Figures

  • Perimeter and area of basic plane figures
  • Perimeter and area of parallelograms
  • Perimeter and area of trapeziums

Chapter 11Volume and Surface Area of Prisms and Cylinders

  • Volume and surface area of cubes and cuboids
  • Volume and surface area of prisms
  • Volume and surface area of cylinders
  • Volume and surface area of composite solids

Chapter 12Statistical Data Handling

  • Pictogram
  • Bar graph
  • Pie chart
  • Line graph
  • Evaluation of statistics
Note

Lower Secondary G2 students benefit most from consistent practice that builds understanding before upper-level exam preparation.

Common challenges at this level

Secondary 1 students in the G2 stream often face:

Adjusting to secondary-level expectations

The jump from primary to secondary Math is significant. Students encounter formal algebra, negative numbers, and multi-step reasoning for the first time, often alongside a new school environment and heavier workload.

Keeping pace as abstraction increases

Students can fall behind when routine methods become less effective and questions demand stronger reasoning.

Applying concepts in unfamiliar contexts

Students may understand procedures but struggle when problems are presented in unfamiliar multi-step formats.

Managing consistency across subjects

With more subjects and deadlines, students can lose momentum without focused, guided practice.

How DeepThink helps Sec 1 G2 students

DeepThink supports Secondary 1 students in the G2 stream through targeted diagnostics, structured teaching, and strategic practice:

Diagnose and close gaps quickly

Our platform identifies chapter-level weaknesses early so students focus effort where it matters most.

Smooth the primary-to-secondary transition

We bridge the gap by connecting new concepts to familiar primary-school methods, building confidence before pushing further into abstract territory.

Targeted support to secure progression

We identify chapter-level weaknesses early and reinforce them before they affect future Upper Secondary topics.

Track progress with clear next steps

Students and parents see what is secure, what needs reinforcement, and which topics should be prioritised next.

With consistent support, students can enter Upper Secondary ready for more demanding applications and exam pathways.

Program facts

What families should know about Secondary 1 G2 support

The details parents usually want before deciding whether to book a trial.

Lesson format

Weekly 1.5-hour live online class

Targeted online practice with instant marking supports work between lessons.

Class size

Maximum 4 students

Students are grouped by learning pace, not just by level — if no existing session matches your child’s pace, we open a new one.

Syllabus focus

MOE Secondary Mathematics

Full curriculum and chapter list shown in the syllabus section above.

Pricing

$50 per live class

Same fee across levels and streams.

Trial

Free trial class available

Parents can see the teaching pace, structure, and student experience before committing.

Best fit

Secondary 1 G2 students who need weekly support matched to their exact stream and exam syllabus.

Decision support

When Secondary 1 G2 support is the right fit

These are the situations where extra support tends to make the biggest difference.

Your child was comfortable in primary Math but is now struggling

The transition to secondary-level abstraction — variables, equations, formal reasoning — catches many previously strong students off guard. Early support prevents a confidence spiral.

School test results are inconsistent

Scoring well on some topics but poorly on others in Sec 1 G2 usually indicates uneven foundations. Targeted diagnostics identify which specific concepts need reinforcement.

Your child avoids Math homework or leaves questions blank

Avoidance is a reliable signal that the student feels stuck but does not know how to ask for help. Weekly structured support provides a consistent space to work through difficulties.

If any of these patterns sound familiar, this is likely the right level of support for your child — a trial class is a good next step.

Frequently asked questions

Clear answers for parents

What topics does Sec 1 G2 Math cover?

Sec 1 G2 covers rational numbers, algebraic manipulation, linear equations, geometric properties, mensuration, and basic data handling — at a pace that balances depth with steady progression.

How does G2 Math differ from G3 in Secondary 1?

G2 covers similar topics to G3 but with more scaffolding and practice time. G3 moves faster and introduces extensions earlier. The core syllabus overlap means transitions between streams are manageable.

Should my Sec 1 G2 child aim to move to G3?

It depends on your child. If they are consistently comfortable and scoring well, a move to G3 may be appropriate. If they are still building confidence, consolidating G2 foundations serves them better long-term.

What makes Sec 1 a critical year for G2 students?

Sec 1 is the transition from primary arithmetic to algebraic thinking. G2 students who do not secure these foundations in Sec 1 often find Sec 2 topics significantly harder, as every new concept builds on Sec 1 knowledge.

Is one weekly tuition class enough for Sec 1 G2?

For most students, one focused 1.5-hour class per week plus targeted online practice between sessions is sufficient. The key is consistency — regular engagement matters more than volume.

What is the SEC exam and how does it affect G2 students?

The Singapore-Cambridge SEC replaces all three national secondary exams (O-Level, N(A)-Level, N(T)-Level) from 2027. Students sit one unified exam with each subject at G1, G2, or G3 level — and can mix levels across subjects. G2 Math aligns to the former N(A) standard. The content and skills remain similar, but the unified framework means strong G2 foundations now are essential.

How many students are in each class?

Four, at most. Students are grouped by learning pace, not just by year level, so each lesson moves at the speed of the students actually in it. When no session matches a child’s pace, we open a new one. In a class that size, every child answers questions, gets their working checked, and gets help the moment they need it.

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