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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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Understanding fractions (age 9+)

Mathematics · Mathematical Thinking · meta

Construct and present logical mathematical arguments involving multiple steps; critique others' reasoning about fractions, angles, or calculations and clearly explain errors or alternative methods

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What mastery looks like

  • Prove that 3/4 > 2/3 using a common denominator argument and a visual model
  • Find and explain an error in a long multiplication where a partial product was misaligned
  • Present a chain of reasoning to show that angles in a triangle sum to 180° by tearing and arranging

Check your understanding

If Understanding fractions (age 9+) and a classmate solve the same maths problem differently, can Understanding fractions (age 9+) compare the two approaches, explain which method is more efficient, and identify any errors in either working?

Prerequisites

Required first

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