Curriculum practice engine

Repeatable practice that stays on this device.

ClassPilot practice runs locally in the browser. It gives immediate feedback, hints and worked explanations without learner accounts, saved progress or uploaded answers.

KS3 to A level where mappedComputer ScienceNo timerNo stored scores

Data Unit Practice

Work through bits, bytes, prefixes, image sizes and sound file-size calculations.

Open Data Unit Practice

Error Spotter

Identify syntax, runtime and logic errors in short curated Python examples.

Open Error Spotter

How practice works

Choose a short session, answer each question, use hints when needed and retry incorrect questions at the end. Leaving or reloading the page resets the session; that keeps the tool private and simple.

Learning outcomes include tracing variable state, converting data units, evaluating Boolean expressions and identifying syntax, runtime and logic errors. The hub itself works without JavaScript; interactive question sessions require JavaScript on each practice page.

Browse Learn Computer Science subject hub