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Education Concept Tracker

A prerequisite knowledge graph of 1590 learning concepts across 8subjects. Track what you've mastered and see exactly what you're ready to learn next — the topics whose prerequisites you've already met. Built on the Marble Open Skill Taxonomy.

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Knowledge-graph map

Computing
Mastered Ready to learn LockedHover a node for its description · click to open
Computers in Everyday L…Computers in Everyday Life — frontier Identifying computers in everyday life — not just laptops but phones, tablets, smart speakers, traffic lights, washing machines; what makes something a computerReal-World RobotsReal-World Robots — locked What a robot really is — not the sci-fi version; robots in factories, robot vacuum cleaners, robot arms in surgery; that robots follow instructions given by peopleSmart Versus Not-Smart…Smart Versus Not-Smart Devices — locked Sorting objects into 'smart' (can sense and respond) and 'not smart' (just sits there); a toaster vs a smart speaker; introduction to the idea that some machines can sense and respond to the worldStep-by-Step Instructio…Step-by-Step Instructions — locked Step-by-step instructions for everyday tasks (making a sandwich, brushing teeth); that if instructions are wrong or missing, things go wrong; computers follow instructions exactly
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Cancer & Stem Cells

Science · The Human Body · meta

Explain that cancer occurs when mutations in DNA disable normal cell-cycle controls, causing uncontrolled cell division and tumour formation; describe how stem cells differ from specialised cells and their potential for regenerative medicine; and evaluate the ethical debates around embryonic stem cell research and genetic testing

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What mastery looks like

  • Explains cancer as the result of DNA mutations that disable tumour suppressor genes or activate oncogenes, causing unchecked mitosis
  • Distinguishes stem cells (unspecialised, can differentiate) from specialised cells (fixed function) and explains why stem cells are medically valuable
  • Presents the embryonic stem cell debate with at least two specific scientific arguments in favour and two ethical objections against, without simply asserting one side is correct

Check your understanding

If Cancer & Stem Cells was asked to explain what cancer actually is at a cellular level, could they describe what goes wrong with cell division — and explain why some people object to using stem cells from embryos for medical research, even if it could save lives?

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