# 📚 IGCSE Additional Mathematics (0606) — Complete Notes > A **patch** for the official Cambridge textbook: reorganized by syllabus Topics 1–14, filling in missing steps, question types, and common pitfalls.

--- ## 📜 License © 2026 Leo Yang. This work is licensed under [CC BY-NC-SA 4.0](https://creativecommons.org/licenses/by-nc-sa/4.0/). You are free to **share** and **adapt** for **non-commercial purposes**, with attribution and same license for derivatives.

--- ## ✨ Features - > **Syllabus order**: comprehensive it. - > **time efficency**: from 200~300 H learning -> 70~100 hours! (previa: IGCSE 0580 Math OR Pre-AP algebra 1&2 - > **Question type + step‑by‑step**: Each type broken down into “recognise → steps → traps”. - > **Free & open source**: No paywalls, no registration — just learning. --- ## 📖 Why this note exists > **Honest opinion:** The official Cambridge IGCSE Additional Mathematics (3rd edition) textbook is, frankly, poorly structured. Whole book are missing more than 50% of the contents + no order — with skipped steps, scrambled order, and unclear explanations. I'm also a student. I couldn't understand the coursebook either — so I used AI and my own understanding to rebuild it from scratch. - **Before this note**: I found no complete, free, open‑source notes for 0606. - **What I fixed**: Missing content, unclear explanations, wrong sequencing (e.g. differentiation should be placed *with* functions, not buried later). - **What I couldn't fix**: The official textbook's fundamental logic — but I've reduced the gap to about 10% when using this note alongside it. > **Welcome — this is the end of the road.** > If you found this repo, it probably means you've searched everywhere else and couldn't find anything that made sense. --- ## 🚀 How to use 1. Use together with the **Cambridge IGCSE Additional Mathematics 3rd edition** textbook (Sue Pemberton; CUP). 2. Follow the file tree in order. 3. If you know Git: `git clone` + regular `git pull`; otherwise click **Download ZIP**. --- ## ⚠️ Important: Viewing LaTeX formulas **GitHub does NOT render LaTeX formulas correctly in its web interface.** To view the formulas properly: 1. Download **Visual Studio Code** 2. Install the extension **Markdown All in One** 3. Open the note folder in VS Code — formulas will render correctly > 💡 **Teachers**: You can copy-paste the rendered content into Word documents. --- ## 📬 Links | Platform | Link | | :--- | :--- | | **GitHub** | [LG-leo/IGCSE-Additional-Mathematics-Notes-0606](https://github.com/LG-leo/IGCSE-Additional-Mathematics-Notes-0606) | | **GitCode (China mirror)** | [gitcode.com/.../IG0606ADD_NOTEwithCAMcoursebook](https://gitcode.com/oiiioiiiooiiioio/IG0606ADD_NOTEwithCAMcoursebook) | --- ## ⭐ Support If you find these notes useful: - Give a **⭐ Star** — it helps others find this repo - Click **👁️ Watch** — get notified when I add new chapters or fix errors - **Clone** the repository — so you can easily `git pull` future improvements > The original textbook is quite bad, so some sections will be continuously refined. Cloning ensures you always have the latest version. --- ## ⚠️ Disclaimer - These are beginner’s notes written by a student, not a teacher. - If there is a conflict between the textbook and these notes, **the textbook takes precedence**. - Prerequisite: You need a copy of **Cambridge IGCSE Additional Mathematics 3rd edition** (Sue Pemberton; CUP). - Some content is adapted from the original textbook for **educational, non‑commercial purposes**. This note does **not** replace the original textbook. --- ## 📌 About this project - **Maintained by**: [LG-leo](https://github.com/LG-leo) - **Motivation**: The official textbook is poorly written. I had to rewrite and supplement large parts of Topics 2–4 on my own. This note reflects my own understanding and might help you avoid the same frustration. - **Ongoing updates**: Because the textbook is so poorly structured, I continue to revise and supplement older chapters. --- ## 🌱 What's next? ### 📐 AP Precalculus Notes (2026 syllabus) > Coming soon! The complete notes for AP Precalculus (2026 syllabus) are in progress. > > **Estimated completion**: November 2026 ### 🔬 Other IGCSE notes I'm also working on notes for other IGCSE subjects to fix similar textbook issues: - [IGCSE Chemistry Note](https://github.com/LG-leo/IGCSE-chemistry-note) — fixes over 60% missing content - [IGCSE Biology Note](https://github.com/LG-leo/IGCSE-biology-note) — provides AO2-level explanations - [IGCSE Physics Note](https://github.com/LG-leo/IGCSE-physics-note) — bridges textbook-exam gap --- ## 💬 Final words > Written in my spare time. If you find any mistakes, please open an Issue. Hope it helps you spend less time struggling and more time learning. **There’s no shortcut to learning, but the road can be paved a little smoother.** ---