AI Constitution

Resources · Learning tool

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.

Sign in to track your progress and get personalized recommendations. You can browse freely below.

Knowledge-graph map

Computing
Mastered Ready to learn LockedHover a node for its description · click to open
← Back

Area (age 8+)

Mathematics · Measurement · procedural

Measure areas by counting unit squares (square cm, square m, square in, square ft)

What mastery looks like

  • Count unit squares to find the area of an L-shaped figure
  • Measure the area of a book cover using square-centimetre tiles
  • Compare areas of two shapes by counting their unit squares

Check your understanding

If Area (age 8+) draws a shape on squared centimetre paper, can they find its area by counting the squares — including making a sensible estimate for any partial squares?