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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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Spelling -able & -ible

English · Spelling & Word Study · procedural

Spell words ending in -able/-ible and the corresponding adverb forms -ably/-ibly, applying patterns to determine which suffix to use based on the root word

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What mastery looks like

  • Apply the guideline that -able is typically used with complete root words (enjoyable, comfortable) while -ible is used with incomplete roots (visible, possible), noting key exceptions
  • Convert -able/-ible adjectives into adverbs by changing the ending to -ably/-ibly, e.g. comfortable → comfortably, possible → possibly, terrible → terribly
  • Determine whether to drop or retain the final -e of the root when adding -able, e.g. adorable (drop e) vs changeable (keep e before soft g)

Check your understanding

When Spelling -able & -ible needs to spell a word ending in "-able" or "-ible" — like "comfortable" or "visible" — can they choose the right ending and spell it correctly?

Prerequisites

Required first

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None.