This space is created for tutors who come across questions that are difficult to solve, challenging to explain, poorly worded, confusing for students, and/or unclear in mark schemes or methods. Explore worked solutions, alternative approaches, teaching explanations, and common misconceptions shared by other maths tutors. Questions are organised by topic, level, exam board, and difficulty.

Come across a question you found difficult to solve or teach?

Submit it to the archive along with the question image, topic, level, exam board (if known), and your attempted solution or explanation (optional).