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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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Salt Water vs Fresh Water

Science · Earth's Systems · conceptual

Describe and graph the amounts of salt water and fresh water in various reservoirs to provide evidence about the distribution of water on Earth

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What mastery looks like

  • State that about 97% of Earth's water is salt water in the oceans
  • Describe where fresh water is found: glaciers/ice caps, groundwater, rivers, lakes
  • Create or interpret a graph showing the relative amounts of salt water vs fresh water

Check your understanding

Can Salt Water vs Fresh Water explain that most of Earth's water is salty ocean water, and only a tiny fraction is the fresh water we drink, and show this on a graph?

Prerequisites

Required first

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