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Nets of 3-D Shapes
REPRESENTATIONALIdentify, draw, and interpret nets of common 3-D shapes — cubes, cuboids, triangular prisms, and square-based pyramids — by predicting which 3-D shape a given flat arrangement of faces will fold into, checking whether a net will close completely, and sketching a net from a description or 3-D model; understand the relationship between the number of faces and the structure of the net
Mastery Evidence
- Draw the net of a cube, cuboid, or triangular prism and fold it mentally to identify which faces connect
- Build a 3-D shape from its net and check that all faces, edges, and vertices match
- Identify which of several given nets will fold into a specific 3-D shape and explain why the others won't
Assessment Prompt
“If [child] is given a flat T-shaped piece of card with six squares, can they tell you — before folding — that it makes a cube, and point out which square will become each face?”
Prerequisites0
No prerequisites — this is a foundational topic.
Unlocks4
- Edges, vertices, and facessoftAges 6—7
- 3-D shapes (age 10+)hardAges 10—11
- 2-D shapes (age 7+)softAges 7—8
- 3-D shapes (age 9+)hardAges 9—10