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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3-D shapes (age 5+)

Mathematics · Geometry · conceptual

Analyse and compare 2-D and 3-D shapes using informal language to describe sides, vertices, and other attributes

What mastery looks like

Count the sides and corners of a shape
Compare a triangle and a rectangle by number of sides
Describe a cube as having 'square faces' and 'corners'

Check your understanding

Can 3-D shapes (age 5+) describe what makes two shapes different — for example, explaining that a triangle has 3 corners and 3 sides while a square has 4 of each?

Prerequisites

Required first

2-D shapes
3-D shapes

Unlocks (4 directly)

Building & Drawing Shapes
Angles in triangles (age 6+)
Edges, vertices, and faces
2-D shapes (age 6+)
Combining Simple Shapes

Knowledge-graph map

3-D shapes (age 5+)

What mastery looks like

Check your understanding

Prerequisites

Unlocks (4 directly)