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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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Current, voltage, and what they measure

Science · Energy · conceptual

Understand that electric current is the rate of flow of charge (measured in amperes using an ammeter), and that potential difference (voltage) is the energy transferred per unit charge (measured in volts using a voltmeter)

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What mastery looks like

  • States that current is measured in amperes (A) and is the rate at which charge flows around a circuit
  • States that potential difference (voltage) is measured in volts (V) and represents energy transferred per unit charge
  • Correctly connects an ammeter in series and a voltmeter in parallel when building or interpreting a circuit

Check your understanding

If Current, voltage, and what they measure sets up a circuit with an ammeter and a voltmeter, can they explain what each one is measuring and describe the difference between current and voltage?

Prerequisites

Required first

Unlocks (2 directly)