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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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Voice Assistants and How They Work

Computing · Artificial Intelligence · conceptual

What happens when you talk to Alexa, Siri, or Google Assistant; they listen, try to understand, look up answers; sometimes they get it wrong; they are tools, not alive

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What mastery looks like

  • Describe the steps that happen when you ask a voice assistant a question (it listens, processes words, finds an answer, speaks back)
  • Give an example of a time a voice assistant might get something wrong
  • Explain that a voice assistant is a computer program, not a person — it doesn't understand or feel

Check your understanding

If Voice Assistants and How They Work asked Alexa or Siri a question and got a wrong answer, could they explain why the voice assistant sometimes makes mistakes?

Prerequisites

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