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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
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Sorting into categories

Mathematics · Data & Statistics · procedural

Classify objects into given categories, count the number in each category, and sort the categories by count

What mastery looks like

  • Sort a set of shapes by colour and count how many in each group
  • Sort objects by size (big/small) and state how many in each category
  • Identify which category has the most/fewest after sorting and counting

Check your understanding

Can Sorting into categories sort a pile of objects — like buttons, coins, or toy animals — into groups and count how many are in each group?