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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.

Knowledge-graph map

Computing

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Combining Simple Shapes

Mathematics · Geometry · procedural

Compose simple shapes to form larger shapes (e.g. two triangles make a rectangle)

What mastery looks like

Join two triangles to make a rectangle or larger triangle
Use pattern blocks to fill a hexagon outline
Create a picture or design by combining basic shapes

Check your understanding

Can Combining Simple Shapes fit smaller shapes together to make bigger ones — like combining two triangles to make a rectangle?

Prerequisites

Required first

2-D shapes

Helpful

3-D shapes (age 5+)

Unlocks (1 directly)

Composing Shapes