From 2024, all Singapore secondary schools moved to full subject-based banding (Full SBB). The familiar streams — Express, N(A), N(T) — were replaced by subject-level bands: G3, G2, and G1. A student no longer belongs to one stream across all subjects; they take each subject at the level they're strongest in.
For Math specifically, this changes how you should think about tuition. Here's what parents need to know.
The streams, translated
- G3 — most demanding band, equivalent to the former Express stream. Leads to O-Level papers.
- G2 — moderate band, equivalent to the former N(A) (Normal Academic). Leads to N-Level then optionally O-Level.
- G1 — foundation band, equivalent to former N(T) (Normal Technical).
A student might take Math at G3 but Science at G2, or vice versa. Schools assess and stream subject by subject from Sec 1.
What changed in Math content
The Math content itself didn't get a wholesale rewrite. Topics are largely unchanged. What changed is:
- Movement is now possible without changing schools. A G2 student doing well can move up to G3 for that specific subject. A G3 student struggling can move down. This wasn't easy under the old stream system.
- G2 papers prepare students for a wider exit path. Many G2 Math students now take O-Level Math at the end of Sec 4 or Sec 5 (formerly via the bridging year). The G2 syllabus is designed with that next step in mind.
- Teacher attention to streaming is sharper. Because students can move bands, schools watch performance closely — and parents should too.
What this means for choosing tuition
If your child is in G3 Math
The pace is fast. Algebra in Sec 1 sets the foundation for everything that follows. A weak Sec 1 algebra base creates compounding problems in Sec 2 trigonometry, Sec 3 functions, and Sec 4 calculus.
What to look for in tuition:
- Teachers who drill algebraic technique until automatic
- Material aligned to the current G3 syllabus (refreshed yearly)
- Reasonable bridging support if your child wants to push toward A Math
See our Sec 1 Math and Sec 2 Math classes — both teach the full G3 curriculum from the start, with G2 students sitting alongside (their syllabus is a subset).
If your child is in G2 Math
The most common worry we hear: "Will my child be behind?" The answer depends on the centre. The best practice is to teach G3 content to G2 students from day one — because:
- G2 students who promote up mid-year aren't caught flat-footed
- The G3 framing gives G2 students a stronger foundation even if they stay at G2
- The G2 syllabus is essentially a subset of G3, so teaching it as a subset is more efficient than teaching it separately
This is exactly how our Lower Secondary classes are taught — G3 + G2 together, with G3 content for everyone, plus differentiated support where needed.
If your child is at the G2 → G3 border
This is where tuition matters most. A child who's borderline can often move up with focused intervention in Sec 1 or early Sec 2. By Sec 3, the gap is harder to close. If your child is hovering at the band boundary, ask the centre how they'd specifically build up the borderline topics — not just "we'll drill more."
N-Level vs O-Level Math — what about Sec 4 onward?
For Sec 3 and Sec 4 students, the band determines exam track:
- G3 students take O-Level Math (E Math, optionally A Math). Our O-Level E Math and O-Level A Math classes cover both.
- G2 students take N-Level E Math. Our N-Level E Math class is built specifically for this track.
N-Level E Math is rigorous in its own right — it isn't a "lite" version. Students who do well at N-Level often progress to O-Level Math in Sec 5 or pivot to polytechnic pathways.
Common questions we get
Should my G2 child be in a G3 class?
If the class teaches G3 content to everyone (which is the right approach), then yes — they benefit. If the class is genuinely G3-only and excludes G2 students, then no — pace will be wrong.
My child is G3 but struggling. Should I switch to G2?
Usually not as the first move. First step: identify whether the gap is foundational (algebra) or recent topical. A few targeted tuition sessions to plug the specific gap often solves it without changing band.
How early does tuition matter?
Sec 1 is when algebra habits set. Most parents under-rate Sec 1 because the topics look easy on the surface. The students who breeze through Sec 3–4 Math are usually the ones who drilled Sec 1 algebra until automatic. A few months at Sec 1 saves months of pain at Sec 4.
Final thoughts
The G1/G2/G3 reform gives parents more flexibility — but also more decisions. The most useful thing you can do is choose a tuition centre that teaches to the higher band as default, supports movement between bands, and aligns to the current syllabus year. The band your child is in today isn't the band they're locked into for life.
If you'd like to see how we structure G3 + G2 Math at Lower Sec, book a free trial. We'll send personalised feedback after, then you decide.
Learn more about us — and all the best.