In Singapore secondary schools, G2 (General 2) and G3 (General 3) Mathematics refer to different levels of Mathematics offered to students in Secondary 1 and 2, particularly in the Normal (Academic) (N(A)) stream.
Here’s a breakdown of the key differences between G2 and G3 Mathematics in Secondary 1:
| Feature | G2 Mathematics | G3 Mathematics |
|---|---|---|
| Difficulty Level | Standard N(A) Math | More challenging, closer to Express Math |
| Curriculum Scope | Covers fundamental topics needed for N(A) syllabus | Includes additional and deeper topics, preparing for O-Level Math |
| Pace of Learning | More structured, with focus on core concepts | Faster pace, more problem-solving focus |
| End Goal | Prepares students for N(A) O-Level Math (4045) or N(A) N-Level Math | Prepares students for Express O-Level Math (4048) if they perform well |
| Eligibility & Progression | For most N(A) students | For higher-performing N(A) students, may allow transfer to Express Math in Sec 2 or 3 |
| Topics Covered in Sec 1 | Basic algebra, geometry, statistics, mensuration, simple functions | Same as G2 but with extra topics like quadratic equations, algebraic fractions, and harder problem-solving questions |
Who Takes G3 Math?
Students who perform well in Mathematics during Primary School (PSLE).
Those identified by the school to take a more challenging syllabus.
Students who may want to transfer to Express Math in later years.
Progression from G2 and G3
G2 students: Continue with N(A) Math (4045) and sit for N-Level or O-Level Math in Sec 4 or 5.
G3 students: If they do well, they may be offered Express Math (4048) from Sec 2 or 3. If they stay in N(A), they will take O-Level Math (4045) in Sec 4 or 5.
Tips for Choosing Between G2 and G3 Mathematics in Secondary 1
Choosing between G2 and G3 Mathematics depends on your math ability, learning pace, and future goals. Here are some key factors to consider:
1. Assess Your PSLE Mathematics Performance
✅ Choose G3 if: You scored A or B in PSLE Math and are comfortable with more challenging questions.
⚠️ Stick to G2 if: You scored C or lower and found some PSLE topics difficult.
Why? G3 moves at a faster pace and requires strong algebra and problem-solving skills.
2. Consider Your Interest & Confidence in Math
✅ Choose G3 if: You enjoy problem-solving, challenging questions, and want to push yourself.
⚠️ Stick to G2 if: You struggle with Math concepts and prefer a more manageable pace.
Why? G3 includes harder problem-solving questions similar to Express Math, while G2 focuses more on foundational skills.
3. Look at Your Long-Term Goals
If you plan to take O-Level Math (4048) or consider moving to Express stream → G3 is better
If you prefer a steady pace and may take N(A) O-Level Math (4045) or N-Level Math → G2 is fine
4. Ask Your Teacher for Advice
Your school may recommend you for G3 based on your PSLE scores and diagnostic tests.
If unsure, ask your Math teacher whether they think you can handle G3.
5. Be Open to Switching Later
Some schools allow switching from G2 to G3 if you perform well in Secondary 1.
But switching from G3 to G2 may be harder since G3 covers extra topics.