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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Edges, vertices, and faces

Mathematics · Geometry · conceptual

Identify and describe properties of 3-D shapes including the number of edges, vertices, and faces

What mastery looks like

Count the edges, vertices, and faces of common 3-D shapes
Use the terms edge, vertex (vertices), and face correctly
Describe a 3-D shape by its properties (e.g. a cube has 6 faces, 12 edges, 8 vertices)

Check your understanding

Can Edges, vertices, and faces count the faces, edges, and vertices of a 3-D shape like a cube or triangular prism?

Prerequisites

Required first

3-D shapes
3-D shapes (age 5+)

Helpful

Nets of 3-D Shapes

Unlocks (2 directly)

Sorting 2-D and 3-D shapes
2-D shapes (age 7+)

Knowledge-graph map

Edges, vertices, and faces

What mastery looks like

Check your understanding

Prerequisites

Unlocks (2 directly)