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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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Place value of each digit

Mathematics · Number Representation & Place Value · conceptual

Recognise the place value of each digit in a four-digit number (thousands, hundreds, tens, and ones)

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What mastery looks like

  • State the value of each digit in a four-digit number (e.g. in 7,345 the 7 represents 7 thousands)
  • Partition a four-digit number into thousands, hundreds, tens, and ones
  • Compose a four-digit number from given place-value parts (e.g. 3000 + 400 + 50 + 2 = 3,452)

Check your understanding

If Place value of each digit sees the number 5,347, can they tell you the value of each digit — that the 5 means 5,000, the 3 means 300, the 4 means 40, and the 7 means 7?

Prerequisites

Required first

Unlocks (7 directly)