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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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The Electromagnetic Spectrum

Science · Waves, Light & Sound · conceptual

Describe the full electromagnetic spectrum from radio waves to gamma rays, in order of increasing frequency and energy; explain that all EM waves travel at the same speed in a vacuum; and describe the uses and hazards of different regions

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What mastery looks like

  • Lists the seven regions of the EM spectrum in order of increasing frequency
  • States that all EM waves travel at 3 × 10⁸ m/s in a vacuum
  • Gives at least one use and one hazard for each region of the spectrum
  • Explains why some EM waves are more dangerous to living tissue than others (linked to frequency/energy)

Check your understanding

If The Electromagnetic Spectrum heard about microwaves, X-rays, and visible light all being part of the same family, could they explain what makes them different from each other and name one useful application and one risk for each?

Prerequisites

Required first

Helpful

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