About eXercise
Free bilingual English–Chinese study material for Cambridge IGCSE, Cambridge A-Level and AP — no account needed.
What's here
Know
Learning content for every syllabus topic, with diagrams, worked examples and exam tips.
Learn
Interactive lessons that work through a topic step by step, with instant-check exercises.
Code
Coding courses that run entirely in your browser — Python, Java, C, SQL, HTML/CSS and more.
Practice
Past-paper practice with automatic marking and feedback.
Library
A library of past papers, mark schemes and printable topic handouts.
Vocab
A vocabulary trainer, plus HSK and CEFR grammar references.
Bilingual by design
- For students taking an English syllabus at a Chinese-speaking school.
- Hard words carry a Chinese gloss; most pages have a full Chinese version.
- Switch with the flag in the header. Code stays English — so does the exam.
Made with AI
- Written with the best AI models in the world.
- Built from the official syllabus, past papers and mark schemes — not web text.
- Diagrams drawn per lesson. Photos freely licensed, every source listed on Image credits.
What it costs
- Nothing. No account to read, and no adverts anywhere.
- Notes, lessons, practice, coding courses, vocabulary — all free.
- AI features have a free allowance. Need more? Ask the admin — button, bottom right.
Found a mistake?
- Tell us with the feedback button, bottom right of any page.
- Corrections to the material are the most useful thing you can send.