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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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Roman numerals to 100

Mathematics · Number Representation & Place Value · conceptual

Read Roman numerals to 100 (I to C) and understand that the numeral system changed over time to include zero and place value

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What mastery looks like

  • Read and write Roman numerals I, V, X, L, C and combinations up to 100
  • Convert between Roman numerals and Hindu-Arabic numerals (e.g. XLIV = 44)
  • Explain that Roman numerals have no zero and no place-value system

Check your understanding

Can Roman numerals to 100 read Roman numerals like XIV (14) or XLII (42) — and do they know why we stopped using Roman numerals for most things once zero and place value were invented?

Prerequisites

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