FSBB Explained: G1, G2 and G3 Maths in 2026

By the Math Academy Team — NUS-trained, ex-MOE tutors · Updated June 2026

If your child is in secondary school, the familiar labels are gone. There is no more “Express”, “Normal
(Academic)” or “Normal (Technical)”. Instead, report slips and subject choices talk about G1, G2 and
G3. This is Full Subject-Based Banding (FSBB) — the biggest structural change to Singapore secondary
education in decades — and for mathematics in particular it reshapes how you should think about your child’s
path. This guide explains what FSBB is, what the G1, G2 and G3 maths bands mean, how a child’s band is
decided and changed, how it connects to the new SEC national exam, and the practical decisions it puts in
parents’ hands.

What is Full Subject-Based Banding?

Under the old system, a single overall result placed a student into one stream — Express, Normal
(Academic) or Normal (Technical) — and that stream fixed the level of every subject they took. Full
Subject-Based Banding removes those stream labels entirely. Students now sit in mixed form classes and take
each subject at the band that fits their ability in that subject: G1, G2 or G3.

In practice, a student attends common subjects such as Art and Physical Education with their form class,
and ability-banded subjects such as Mathematics and English in classes grouped by level. The same classroom
of children might be working at G1, G2 and G3 across their various subjects — a deliberate move away from the
old, rigid streams. The “G” stands for General, and the three bands map roughly onto the old standards.

The crucial shift is that banding is now done subject by subject. A student can take maths at G3
while taking another subject at G2, or the reverse. A child who is strong in mathematics is no
longer held back by a weaker subject, and can be stretched in the subject where they shine.

How FSBB replaced the old streaming system

FSBB was rolled out progressively and reached full implementation in 2024, when around
120 secondary schools adopted it and the separate Express, N(A) and N(T) streams ended for the new
Secondary 1 cohort. The change was phased in deliberately so schools could adjust timetables and form
classes to the new mixed-ability model.

It is worth being clear about what did not change. The actual subject content and the difficulty
of the work at each level are largely the same as before — G3 maths covers what Express-standard maths
always did. What changed is the structure: instead of a single stream deciding everything, each
subject is banded on its own, and students can move between bands as they progress.

The 2027 SEC exam: where FSBB leads

FSBB also connects to a new national examination. From 2027, the GCE O-Level, N(A)-Level
and N(T)-Level examinations are replaced by a single Singapore-Cambridge Secondary Education
Certificate (SEC). The first cohort to sit it is the group that entered Secondary 1 in 2024 — the
students who are in Secondary 3 in 2026.

Instead of separate stream certificates, every student receives one national certificate
listing each subject at the level they took it: G1, G2 or G3. For parents, the practical takeaway is simple:
the band your child takes a subject at is the level that subject will be examined and recorded at. That makes
the maths band a meaningful, lasting decision rather than a temporary label — which is exactly why the early
foundation deserves attention.

Why FSBB matters most for maths

Mathematics is where FSBB has the biggest practical consequences, for one reason: maths is the gateway
subject for the widest range of future pathways. The band your child takes maths at influences which elective
subjects open up, whether Additional Mathematics is available to them, and ultimately how smooth the road to
Junior College and maths-heavy university courses will be.

A student taking G3 maths is on the standard pathway toward A Math and, later, JC H2
Mathematics. A student on G2 maths who performs strongly may be able to move up. Because the
maths band is decided by the strength of the foundation built in the early secondary years, this is where
parental attention pays off most — and where early, structured support such as
Sec 1 Maths tuition does the most to
keep the higher bands within reach.

How your child’s maths band is decided — and how to move up

Bands are based on a student’s demonstrated ability in the subject, drawn from PSLE results on entry and,
once in secondary school, from school assessments. FSBB is designed to be flexible: schools
review performance and offer students the chance to take a subject at a higher band when their results
support it, typically at the end of an academic year.

This flexibility cuts both ways. A student who is stretched too early in G3 maths before the foundation is
secure can struggle and lose confidence; a student placed in G2 who consistently does well can move up to G3.
The lesson for parents is that the band is not fixed at the start of secondary school — but the ability to
sustain and rise to a higher band depends almost entirely on how solid the underlying foundation is.

How to choose — and adjust — your child’s maths band

The flexibility of FSBB is a gift, but it places more decisions in parents’ hands. A few principles help.

• Band by genuine readiness, not ambition alone. Placing a child in G3 maths before the
  foundation is solid sets up a hard year. The better route is to build the foundation, then move up — FSBB
  explicitly allows upward movement when a student is ready.
• Watch the Secondary 1–2 foundation closely. The early years decide whether a student
  can sustain G3 maths and go on to A Math. Small gaps now compound quickly.
• Keep the long view. If JC and a maths-heavy degree are on the horizon, the band matters
  because of what it unlocks downstream, not just this year’s grade.

FSBB in practice: a quick example

It helps to see how subject-by-subject banding plays out. Imagine a Secondary 1 student who is strong in
mathematics but still finding English demanding. Under the old streams, a weaker overall profile might have
placed them in Normal (Academic) for everything — capping their maths at the N(A) standard regardless of
their talent for the subject. Under FSBB, the same student can take G3 maths while taking
G2 English: stretched in the subject they excel at, supported in the one they find harder,
and able to move English up later if it improves. For a maths-strong child, this is the real advantage of the
system — provided the maths foundation is solid enough to sustain G3 from the start.

The bottom line for parents

FSBB is good news for students who are strong in maths: it lets them be stretched in the subject that
opens the most doors, regardless of how they fare elsewhere. But it also means the foundation years carry
more weight than ever, because the band your child can sustain — and move up to — is decided by how secure
that foundation is, and now records permanently on the SEC certificate.

That is exactly where early, structured support pays off. Building a confident, G3-ready foundation in the
first years of secondary school is the surest way to keep the A Math and JC pathways open — and it begins
with getting the basics right, which is the focus of our
Sec 1 Maths tuition. For more on the
specific leap into secondary maths, see our guide to
surviving the PSLE to Secondary 1 maths jump.

Frequently asked questions