Scaffolded practice
Questions written to build the topic up step by step. Each one has a hint that tells you the method without giving you the answer.
Exam questions
Questions from OCR Paper 1. Those marked with a blue tag are real past-paper questions, marked against the official mark scheme; those with an italic tag are adapted from a real question and labelled with the one they came from.
My progress
Teacher
Certificates awarded
Written answers
These were scored by keyword matching, which is a prompt and not a mark. The pupil's own self-assessment is shown where they gave one. Read the answer before trusting either number.