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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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Marathon and Thermopylae

History · Ancient Greece & Rome · conceptual

Describe the battles of Marathon and Thermopylae as moments when Greek city-states united against the invading Persian Empire — the runner Pheidippides bringing news of victory at Marathon (origin of the marathon race), and the heroic stand of 300 Spartans at Thermopylae — and understand these wars were fought to defend Greek independence

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What mastery looks like

  • Retell the story of the Battle of Marathon and the runner Pheidippides
  • Describe the Spartan stand at Thermopylae against a much larger Persian army
  • Explain that the Persian Wars were about Greek city-states defending their freedom

Check your understanding

Could Marathon and Thermopylae tell you about the famous battles of Marathon and Thermopylae, and explain that the Greeks were fighting to defend their freedom against the Persian Empire?

Prerequisites

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