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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Sorting 2-D and 3-D shapes

Mathematics · Geometry · procedural

Compare and sort common 2-D and 3-D shapes and everyday objects by their properties

What mastery looks like

Sort a collection of 2-D shapes by number of sides
Sort 3-D shapes by number of faces or whether faces are flat/curved
Explain criteria used to sort a group of shapes

Check your understanding

Can Sorting 2-D and 3-D shapes sort a collection of shapes into groups — for example, separating all the shapes with curved sides from those with only straight sides?

Prerequisites

Required first

Edges, vertices, and faces
2-D shapes (age 6+)

Unlocks (0 directly)

None.

Knowledge-graph map

Sorting 2-D and 3-D shapes

What mastery looks like

Check your understanding

Prerequisites

Unlocks (0 directly)