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?
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Students who perform well in Mathematics during Primary School (PSLE).
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Those identified by the school to take a more challenging syllabus.
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Students who may want to transfer to Express Math in later years.
Progression from G2 and G3
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G2 students: Continue with N(A) Math (4045) and sit for N-Level or O-Level Math in Sec 4 or 5.
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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
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✅ Choose G3 if: You scored A or B in PSLE Math and are comfortable with more challenging questions.
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⚠️ 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
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✅ Choose G3 if: You enjoy problem-solving, challenging questions, and want to push yourself.
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⚠️ 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
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If you plan to take O-Level Math (4048) or consider moving to Express stream → G3 is better
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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
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Your school may recommend you for G3 based on your PSLE scores and diagnostic tests.
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If unsure, ask your Math teacher whether they think you can handle G3.
5. Be Open to Switching Later
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Some schools allow switching from G2 to G3 if you perform well in Secondary 1.
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But switching from G3 to G2 may be harder since G3 covers extra topics.