Pythagoras and Trigonometry Together: A Sec 3 E-Math Guide
Extending trigonometry beyond right-angled triangles in E-Math: sine rule, cosine rule and bearings.
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Math Tuition
Explanations of specific math topics and syllabus guidance from Odyssey Math Tuition. Browse tuition by level — primary, secondary and junior college — or work through our online math courses. Popular reads: O-Level maths tuition explained, how secondary math tuition works, JC math tuition and the A-Levels, choosing a math tuition centre, linear equations, nine mathematicians worth knowing.
Expansion and Factorisation Using Special Identities: A Sec 2 Guide
The three special algebraic identities in Secondary 2 and how recognising them saves time and marks.
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Linear Inequalities: A Secondary 2 Revision Guide
Solving and representing linear inequalities in Secondary 2, including the sign rule students forget.
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Percentage: A Secondary 1 Revision Guide
Percentage increase, decrease and reverse percentage in Secondary 1, and the errors that cost marks.
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Phones, Distraction and Studying Maths Online
Studying maths on the same device that carries every notification. Practical ways to make online study actually focused.
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Timed Practice: Why Untimed Revision Misleads
A topic passed untimed and failed under time is a different problem. Why timed practice belongs in revision.
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Revising a Maths Topic From a Previous Year
Upper secondary assumes earlier work is fluent. How to go back and repair a topic from a previous year properly.
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Topical Tests as Diagnosis, Not Decoration
Topical tests are the most useful and most avoided part of an online maths course. How to use them as a diagnostic.
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What Is Inside the Maths Question Bank
The question bank is where an online maths course stops being videos. What it contains and how to use it properly.
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Presentation and Method Marks in a Maths Paper
How working is written changes the mark. The presentation habits that earn method marks in Singapore maths papers.
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