From Primary to Secondary School in Singapore: A Parent’s Guide to What’s Changed (2026)

If you went through the Singapore school system yourself, you probably remember a three-digit T-score, a nervous wait for results, and being sorted into Express, Normal Academic, or Normal Technical. That entire system is gone.

For parents helping their children navigate the transition from primary to secondary school today, almost everything looks different — and understanding these changes is essential for making informed decisions about your child’s education.

This guide explains the key changes in plain language: how PSLE scoring works now, what Full Subject-Based Banding means in practice, and what parents should keep in mind as their child enters a secondary school in Singapore.

The old Express, Normal Academic, and Normal Technical streams have been fully replaced by three Posting Groups. Source: CNA

How PSLE Scoring Works Now: Achievement Levels, Not T-Scores

Since 2021, the PSLE has used Achievement Levels instead of T-scores. Each of the four examinable subjects — English, Mathematics, Mother Tongue, and Science — is graded on a scale from AL1 (the best) to AL8. Your child’s total PSLE Score is the sum of these four AL grades, ranging from 4 (the best possible) to 32.

The critical difference from the old system is that AL grades are based on fixed achievement standards, not on how your child compares to the rest of the cohort. A score of 90 marks in Mathematics will earn an AL1 regardless of how many other students also scored 90. This was designed to reduce the intense peer-versus-peer competition that the old T-score system created.

For parents, the practical takeaway is this: small differences in marks no longer cause dramatic swings in scoring. The focus shifts from chasing every last mark to ensuring genuine mastery of each subject.

Posting Groups Have Replaced Streaming

The old Express, Normal Academic, and Normal Technical streams have been fully replaced by three Posting Groups. Your child’s PSLE Score determines which Posting Group they are placed in for the start of Secondary 1. Posting Group 3 students take most subjects at the G3 level, which is comparable to the former Express standard. Posting Group 2 corresponds roughly to the former Normal Academic level, and Posting Group 1 to Normal Technical.

However — and this is the important part — these Posting Groups are starting points, not fixed tracks. Under Full Subject-Based Banding, a student in Posting Group 2 can take individual subjects at the G3 level if they demonstrate aptitude. Conversely, a student who finds a particular subject challenging can take it at a less demanding level without it affecting their other subjects.

This flexibility is a genuine improvement over the old system. A student who is strong in Mathematics but struggles with Mother Tongue can now take Maths at G3 and Mother Tongue at G2, rather than being locked into one stream for everything.

What Full Subject-Based Banding Looks Like in Practice

In secondary school, students spend roughly one-third of their time in mixed-ability form classes for subjects like Art, Physical Education, Music, and Character and Citizenship Education. For core academic subjects — English, Mother Tongue, Mathematics, Science, and Humanities — students are grouped by their subject level.

This means your child’s daily experience will involve mixing with students from different academic backgrounds in some classes while being grouped with students at a similar level for core subjects. The intention is to reduce the stigma of the old streaming labels while still providing appropriately paced instruction.

For parents, this system requires a different kind of attention. Instead of tracking a single stream label, you now need to be aware of which G-level your child is taking for each individual subject, and whether those choices align with their long-term plans.

 

Why Mathematics Matters More Than Ever in This New System

Under Full Subject-Based Banding, the level at which your child takes Mathematics has far-reaching consequences. The choice between E Math and A Math, and between G2 and G3, shapes post-secondary options in ways many parents do not realise until it is too late. 

Students who aspire to enter Junior College will eventually need G3-level results in their core subjects. Those aiming for polytechnic courses in engineering, computing, or data science also benefit from strong G3 Mathematics. 

Because subjects are now taken at different levels, a student who drops from G3 to G2 in Mathematics is making a decision that directly affects their post-secondary options. This makes it especially important to identify and address any gaps in mathematical understanding early — ideally during lower secondary — before the consequences become difficult to reverse.

The transition from primary school Maths to secondary school Maths is itself a significant jump. Topics like algebra, which are introduced in Secondary 1, form the foundation for almost everything that follows. A shaky start in algebra often cascades into problems with equations, graphs, trigonometry, and eventually calculus.

This is where many students benefit from structured guidance. A small group setting can help identify these gaps early, before they compound across multiple topics and erode a student’s confidence.

The Upcoming SEC Examination: What Parents Should Know Now

From 2027, the O-Level and N-Level examinations will be replaced by the Singapore-Cambridge Secondary Education Certificate, commonly known as the SEC. Students who entered Secondary 1 in 2024 will be the first cohort to sit for the SEC when they reach Secondary 4 in 2027. If your child is currently in Secondary 2 or 3, they are already on the SEC track.

The SEC is not a radically different exam in terms of content. G3 papers are the same standard as current O-Level papers — the difficulty, format, and marking criteria remain unchanged. What does change is the certification structure and, importantly, the JC admission formula. From 2028, JC admission will shift from L1R5 to L1R4, meaning each subject carries more weight.

For parents of younger secondary students, this change reinforces the importance of strong, consistent performance across core subjects rather than spreading effort thinly across too many. Depth of understanding matters more than ever.

Practical Advice for Parents Starting Secondary School in Singapore

First, focus on your child’s individual strengths rather than chasing the Posting Group with the most prestige. A student who thrives in a well-matched environment will outperform one who struggles in a setting that is too demanding.

Second, pay close attention to Mathematics from day one of Secondary 1. The subject is cumulative, and early gaps compound over time. If your child shows signs of struggle — difficulty with algebra, declining test scores, or growing anxiety around Maths — address it early rather than waiting for a crisis.

Third, understand that the flexibility of Full Subject-Based Banding is genuinely valuable, but it also requires more active parental engagement. Under the old system, streaming was a one-time decision. Now, subject-level decisions are ongoing, and each choice has specific implications for future pathways.

Finally, remember that the purpose of these changes is to create a less rigid, more personalised education experience. The system is designed so that students can grow at their own pace and play to their strengths. With the right foundation and the right support, every child can navigate this new landscape with confidence.

If you’d like help assessing where your child stands in Mathematics as they begin secondary school, we’re happy to guide you. Reach out for a free trial lesson and we’ll take it from there.