Summary
A full lesson on solid (3D) shapes: cube, rectangular prism, sphere, cylinder, cone, and pyramid. Daniel covers faces, edges, vertices, and real-world examples for each shape. Connects to 2D faces — a thorough geometry foundation.
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Teaching resources
Discussion questions
Discussion
3D shapes take up space and have faces, edges, and vertices.
- How many faces, edges, and vertices does a cube have?
- How is a cylinder different from a cone? A prism different from a pyramid?
- Name something in the room shaped like a rectangular prism.
Quick work-a-long
Vocabulary: face, edge, vertex, solid, cube, sphere, cylinder, cone, pyramid, prism.
Try it: Sort common classroom objects into groups by shape. Record the shape name and count of faces.