NOTES
Notes for parents and students
Short notes on how O-Level and SEC maths and chemistry are marked and examined. Where a note rests on a syllabus or an MOE rule, it links to the source.
- FULL SBBFull SBB: G2 or G3 maths in Sec 1What decides the maths level on day one, what G3 does in Sec 1 that G2 leaves to Sec 2, and how a student moves up.3 November 2026
- RESULTSHow to calculate L1R5 and L1R4A calculator and worked examples for L1R5 and L1R4, the 2028 change, the January 2027 results window, JAE dates and appeals.Updated 27 October 2026
- PSLE TO SEC 1PSLE AL score for secondary schoolWhat the AL score decides, how to read a school’s cut-off point, 2025 ranges near Beauty World, and what Sec 1 maths adds to P6.Updated 15 October 2026
- EXAM TECHNIQUEHow method marks work: M1, A1 and B1What each mark on a maths scheme means, a worked example, and five common ways students lose method marks.24 September 2026
- EXAM TECHNIQUEAbout 90 seconds a mark: timing a paperThe time each mark gets in the A Math, E Math and Chemistry papers, and how to budget it question by question.25 September 2026
- A MATHWhen to reject a rootLogarithms, surds, exponentials and trigonometry: where a quadratic’s second root has to go, and the line of working that keeps the mark.25 September 2026
- E MATHThe real-world question on Paper 2What the last question of Paper 2 can be about, why the explanation carries marks, and how to write the answer.25 September 2026
- CHEMISTRYQualitative analysis: every test, and how to word itThe anion, cation and gas tests from the 6092 notes, the pairs students mix up, and the wording that earns the mark.25 September 2026
- IP MATHSIP Maths and H2: what H2 assumesThe O-Level A Math topics H2 Mathematics takes as known, and how to check an IP scheme of work against them.25 September 2026
- SUBJECT CHOICEPure or combined science: what Combined Science isThe three Combined Science subjects and their codes, how one grade splits between two sciences, and how it compares with Pure Chemistry for JC admission.Updated 15 October 2026
- THE SECO-Level to SEC in 2027: what changesWhat the new Secondary Education Certificate means for students in Sec 3 in 2026, and the L1R4 rule from 2028.24 September 2026
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