Exam boards

GCSE and A-Level past papers are available from the exam board websites. Most institutions offer AQA, Edexcel and OCR, however others are available.

AQA - http://www.aqa.org.uk/
Edexcel - http://www.edexcel.org.uk/home/
OCR - http://www.ocr.org.uk/index.html

National Curriculum

Students studying from years 1 to 9 follow the National Curriculum. The details for Key Stages 1, 2 and 3 are here:
http://curriculum.qca.org.uk/