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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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Why Earthquakes Happen

Science · Volcanoes & Earthquakes · conceptual

Understand that earthquakes happen when rocks underground suddenly move or break, releasing energy that shakes the ground

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What mastery looks like

  • Explain that earthquakes are caused by rocks underground suddenly moving
  • Describe how this movement sends shaking through the surrounding ground
  • Distinguish between the underground cause and the surface effects of an earthquake

Check your understanding

If Why Earthquakes Happen felt a small tremor or saw footage of an earthquake, could they explain that it happens because rocks deep underground suddenly shift or crack?

Prerequisites

Required first

Unlocks (2 directly)