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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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Athens Versus Sparta

History · Ancient Greece & Rome · conceptual

Compare Athens and Sparta as two very different Greek city-states: Athens focused on learning, arts, debate, and democracy, while Sparta focused on military training, discipline, and obedience — and understand that a city-state was a city that ruled itself like a small country

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What mastery looks like

  • Name at least two differences between life in Athens and life in Sparta
  • Explain what a city-state was and why Greek city-states were independent from each other
  • Describe what was valued most in Athens (learning, arts) versus Sparta (military strength)

Check your understanding

If you asked Athens Versus Sparta about Athens and Sparta, could they tell you that Athens was famous for thinking and democracy while Sparta was famous for its fierce warriors?

Prerequisites

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