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Chemistry made clear — for every student, everywhere. I create clear, step-by-step Chemistry lessons that help students understand difficult ideas, correct misconceptions, and build confidence. My teaching uses a Reduction–Explosion approach: reduce a topic into its core ideas, then expand it into full explanations, equations, mechanisms, and exam-ready reasoning. The goal is not just to memorise, but to truly understand Chemistry. On this channel, you’ll find: • A-Level Chemistry explanations • O-Level Chemistry tutorials • Exam-style MCQs and worked questions • Organic, Physical, and Inorganic Chemistry • Common mistakes explained clearly I’m David Tan, a Singapore-based Chemistry tutor and published author. My goal is to make high-quality Chemistry teaching accessible to students everywhere. For tuition enquiries, books, and more learning resources, explore the links below.

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