GCSE tools
OCR Exam Reference Language
A complete interactive environment for OCR's Exam Reference Language (ERL). Work through modules, run ERL code, take quizzes and tackle exam-style tracing and debugging questions.
Open ERL Environment ↗CodeQuest Pseudocode Tutor
An interactive OCR-style pseudocode tutor built around exam-skills missions. Work through guided modules, write and run pseudocode, and earn XP and badges as you build exam confidence.
Open CodeQuest ↗CODEFIX+ Pseudocode Practice
238 bite-size practice questions across 17 topics. Learn each OCR pseudocode command, spot it, fill the gaps and then write your own — with hints, model answers, a mixed revision challenge and a downloadable progress report.
Open CODEFIX+ ↗30 Coding Challenges
Thirty fill-in-the-gap OCR ERL programs. Complete the missing parts of each program, check your answers as you go and export your results as a CSV to share with your teacher.
Open Coding Challenges ↗ERL Playground
A free-form space to write and run OCR Exam Reference Language. No modules or exercises — just an editor for testing out your own code and checking it does what you expect.
Open ERL Playground ↗