✦ Upper Sec G3 · Mathematics
Mathematics
Secondary 3 – Secondary 4 · G3 Track (O-Level)
Most tuition centres hand students a stack of photocopied worksheets. We don't. Every student in our Upper Sec G3 Mathematics programme receives notes that were written from scratch by our team of tutors.
The notes are structured the way a strong student thinks through a problem: Firstly the intuition, then the method, then worked examples built to mirror what examiners set. Sessions are built on top of these notes with direct, personal guidance.
◈ Sample from 2026
What the Notes Actually Look Like

Quadratic Equations — Completing the Square

Polynomials — Factor Theorem with Intuitive Proof
Secondary 3 Elementary and Additional Mathematics.
◉ Lesson format
Our Approach
100% Self-Written Notes
Every page is written personally and are not recylced or AI-generated. These notes frame concepts in a step by step manner, such that students can clearly understand the thought process and concepts being taught
Exclusive to Astra Academy
Our notes are never distributed publicly or shared with other centres. What you receive is yours alone.
Built Around How Examiners Think
Each topic is structured around the worked examples, structured steps, and common traps that show up in O-Level papers, so students learn to score, not just to understand.
Personal Guidance, Every Session
Lessons aren't a replay of the notes. They aim to test students' understanding and are tailored to what each student is actually struggling with.
◉ 2026 Syllabus
Topics Covered
✦ Get Started
Ready to Learn with Notes That Actually Work?
Reach out to find out more about our Upper Sec G3 Mathematics programme, availability, and how we can help you or your child score confidently at O-Level.
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