Subject guides

Paper-by-paper guides for Cambridge and Edexcel IGCSE subjects: what examiners want and how to score it.

Subject guides · Cambridge · Chemistry 0620

IGCSE Chemistry Paper 4 (0620): How to Answer Long Questions

How to answer IGCSE Chemistry Paper 4 (0620) long questions: command words, how marks are earned, and three worked weak vs full-mark answers.

23 Oct 2026 · 12 min read

Subject guides · Cambridge · Maths 0580

IGCSE Maths Common Mistakes: 12 Fixes for 0580 Papers

IGCSE Maths common mistakes from the 2025 Cambridge 0580 examiner reports, with original worked examples and a simple fix for each one.

23 Oct 2026 · 10 min read