Full SBB 2026: What It Means for Chemistry & Science Streaming

In 2026, the implementation of the full Subject‑Based Banding (SBB) system in Singapore will significantly impact how Secondary 1–4 students select and progress through their Science and Chemistry subjects. 

This article unpacks what Full SBB means specifically for Science & Chemistry, how students and parents can prepare, and how tuition support can fit into the new landscape.

What is Full SBB? (Recap)

​In 2019, Singapore’s Ministry of Education (MOE) introduced Full Subject-Based Banding (Full SBB which replaces traditional streaming (Express / NA / NT) and shifts to subject-level choices (G1, G2, G3).

What the G1/G2/G3 labels roughly correspond to (foundation → intermediate → advanced).

The purpose of SBB is to increase flexibility, allowing students to mix levels across subjects and adjust according to strengths and interests.

What’s New in 2026 for Science & Chemistry under Full SBB

https://www.moe.gov.sg/microsites/psle-fsbb/assets/infographics/full-subject-based-banding/Evolution-of-Streaming.pdf

From 2026 onwards, the rollout of Full Subject-Based Banding (SBB) will fully extend to Science and Chemistry subjects from Secondary 1. 

This greater flexibility affects how schools structure Science classes, timetable allocation, and academic progression. Students may now take G3 Chemistry while taking another subject at G2—or the reverse—depending on their performance and readiness, creating far more customised learning pathways than before.

This shift also changes how students approach “Pure Science” versus “Combined Science.” 

Under Full SBB, the distinction becomes less about streaming and more about subject depth and level. Students aiming for G3 Chemistry (the most rigorous level) will cover content comparable to current pure Chemistry, while G2 and G1 offer progressively simpler scopes. As schools adjust their pathways, the decision-making process for Science combinations becomes increasingly strategic for students and parents.

Assessment formats may also evolve under the G1/G2/G3 structure. Although the foundational exam formats likely remain familiar, differences in depth, question types, and required practical-data skills will vary across levels. 

Why This Matters for Chemistry Tuition & Your Child’s Choices

Under SBB, a typical classroom may contain students taking Science at different levels, which naturally leads to wider variation in ability and content demand. This means tuition centres need to adapt their programmes to be more level-specific, especially for subjects like Chemistry where conceptual progression is steep.

https://www.moe.gov.sg/-/media/files/secondary/fsbb/syllabus/2021-g2g3-lower-secondary-science-syllabus-updated-apr-2024.pdf

Students who opt for G3 Chemistry will encounter more rigorous theory and applied questions earlier, making advanced tracking, conceptual drills, and higher-order problem-solving essential. Those taking G2—and especially those intending to move up to G3—benefit greatly from early intervention and structured bridging programmes that strengthen their foundation before tackling harder concepts.

Meanwhile, G1 students or mixed-level learners require strong reinforcement of fundamentals to build confidence. 

For parents, choosing tuition is now more than just selecting a centre—it involves selecting the right level of class and ensuring the programme is customized to your child’s SBB path. 

The key question becomes: Is my child learning in a class matched to their G1/G2/G3 needs?

Key Steps Parents & Students Should Take (2026 Preparation)

In early 2026, parents should review their child’s school subject-level placements carefully, especially for Science, Chemistry, and related subjects like Physics. 

It’s also important to understand the workload differences across G1, G2, and G3. 

Because SBB allows movement between levels, parents should monitor their child’s progress throughout the year. A G2 student who shows strong conceptual understanding may be encouraged to advance to G3—but only if foundational skills are secure. 

Conversely, students struggling at G3 should receive support early to prevent long-term gaps.

Table — Comparison: G1 vs G2 vs G3 in Science & Chemistry (Under Full SBB)

What Achievers Dream Offers for G1 / G2 / G3 Science & Chemistry (SBB-Ready Classes)

At Achievers Dream, our programmes are designed to support students across all G-levels under Full SBB—with structured pathways, differentiated teaching, and practical-focused learning that help every learner progress confidently.

1. Level-Specific Classes (G1 / G2 / G3)
   We offer broad, level-aligned classes that match the student’s subject banding. Instead of a one-size-fits-all approach, each class targets the depth, pace and exam demands of its respective G-level. This ensures that G1 students strengthen foundations, G2 students build mastery, and G3 students tackle higher-order Chemistry rigorously.
   
   
2. Syllabus-Aware Curriculum Mapping
   Our curriculum clearly differentiates between G1, G2, and G3 requirements—highlighting where topics overlap, where they diverge, and how students can prepare if they wish to move up a level.
   
   Students are guided on the extra concepts, application skills, and analysis expected in G3 Science/Chemistry. And this is also included in the AD App.
   
   
3. Hands-On AD Lab™ Sessions & Data-Analysis Training
   For Chemistry and Science students, laboratory skills remain crucial—especially at higher levels. Our AD Lab™ practical lessons focus on hands-on experiments, qualitative analysis, data interpretation and structured practical questions. These sessions reinforce the practical competencies needed for advanced levels.
   
   
4. Diagnostic-Based Progress Tracking
   Our AD Progress-Tracking System™ allows tutors to identify whether a student is ready to advance from G2 to G3, needs reinforcement at their current level, or should strengthen core concepts before attempting higher complexity. Parents receive clear updates on learning gaps and recommended actions.
   
   
5. Flexible Revision & Bridging Modules
   Since SBB allows movement between levels, our revision modules are designed to accommodate students transitioning across G1/G2/G3. Bridging lessons strengthen fundamentals, while extension modules prepare students for the jump to G3 content and exam-style questions.