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Understanding and Classifying Three-Dimensional Figures: Prisms, Pyramids, and More

In this instructional activity, students will explore the classification of three-dimensional figures, focusing on prisms, pyramids, cones, and cylinders. They will learn to use geometric vocabulary, such as edges, vertices, bases, and faces, to distinguish between different solid figures. Through comparison and classification, students will gain an understanding of how the shape of a base determines the type of prism and will apply this knowledge in practical examples. This activity aims to deepen spatial reasoning and enhance geometry skills.

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Understanding and Classifying Three-Dimensional Figures: Prisms, Pyramids, and More

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  1. 7.6C Instructional Activity #1 (7.6) Geometry and spatial reasoning The student compares and classifies shapes and solids using geometric vocabulary and properties. The student is expected to: (C) Use properties to classify three-dimensional figures including pyramids, cones, prisms, and cylinders.

  2. Edge Vertice Base Face Prisms Three-Dimensional Figures A prism is a three-dimensional figure with two parallel, congruent polygon bases. A geometric figure with three dimensions is called a solid figure. Three-dimensional figures include prisms and pyramids as well as figures with curved surfaces. The bases, which are also two of the faces, can be any polygon. The other faces are rectangles. Three-dimensional figures can be classified based on information about their faces, bases, edges, and vertices. A prism is named according to the shape of its bases.

  3. Edge Vertice Base Face The bases in the prism below are hexagons, so the figure is a hexagonal prism.

  4. Edge The bases in the prism below are triangles, so the figure is a triangular prism. Vertice Face Base

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