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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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Sequence intervals of time

Mathematics · Measurement · procedural

Compare and sequence intervals of time

What mastery looks like

  • Order three events by how long they took
  • Compare the duration of two activities (e.g. 'the race took longer than the walk')
  • Sequence intervals on a timeline

Check your understanding

If Sequence intervals of time knows a film takes 2 hours and a car journey takes 45 minutes, can they tell you which takes longer — and put a few daily activities in order of how long they take?