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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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Waves & Different Materials

Science · Waves, Light & Sound · conceptual

Explain how waves can be absorbed, transmitted, or reflected by different materials, and apply these interactions to explain colour perception, sight, communication technologies, and the effects of different surfaces on wave behaviour

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What mastery looks like

  • Explains the difference between absorption, transmission, and reflection of waves
  • Uses the three interactions to explain how we see coloured objects
  • Explains how radio waves, visible light, and infrared are used in different communication technologies
  • Describes how the properties of a surface (colour, texture, material) determine how it interacts with radiation

Check your understanding

If Waves & Different Materials was wearing a black t-shirt on a sunny day and a friend was wearing white, could they explain using wave interactions why the black shirt gets hotter — and which properties of materials determine how they absorb or reflect radiation?

Prerequisites

Required first

Unlocks (0 directly)

None.