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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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Rounding Answers

Mathematics · Multiplication & Division · procedural

Solve problems which require answers to be rounded to specified degrees of accuracy

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What mastery looks like

  • Compute a division and round the result to one decimal place as specified
  • Determine the appropriate degree of accuracy for a measurement context (e.g. round to nearest penny)
  • Solve a problem where an unrounded decimal answer must be interpreted in context (e.g. whole containers needed)

Check your understanding

If Rounding Answers calculates an answer of 8.63 but the question asks for it to the nearest whole number, can they round it correctly to 9 — and explain why that level of precision matters in context?

Prerequisites

Required first

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