Learning Simulators
Practice tools that run entirely in your browser — nothing you type is stored or sent anywhere.
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Flowchart simulator
Build flowcharts for abstraction and decomposition questions, with hints and model answers.
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Programming simulator
OCR J277/02 style exam questions across every topic, with mark-scheme keyword feedback.
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Search algorithms quiz
40 questions on linear and binary search, grades 1–9.
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Sorting algorithms quiz
40 questions on bubble, insertion and merge sort, grades 1–9.
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Trace table simulator
Fill in the blanks in 20 self-marking trace tables — variables, loops, arrays, sorting and searching.
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More on the way
Additional simulators will appear here as they're built.