This document discusses classifying and comparing three-dimensional shapes. It defines polyhedra as geometric solids with flat, polygon faces and lists properties of prisms, cubes, pyramids, spheres, cylinders and cones. Students will work in groups to construct 3D shapes, complete a worksheet comparing their properties, and discuss their answers.

1. 3a: Classify and Compare three-dimensional shapes using their properties3b: Construct two-dimensional representations of three-dimensional objectsBy: Deia Sanders

2. VocabularyPolyhedra (polyhedron – singular form) – geometric solid with flat surfaces called faces that are shaped like polygonsTo us… they look like 3-D shapes!

3. VocabularyPrisms: 3-D figures that have two of their faces parallel to each other. They are named by their base.Cube: a special type of rectangular prism. All the faces are squares.

4. VocabularyPyramid: only has one base. The base is a polygon and all other faces are triangles. How many faces does the pyramid have?How many edges does the pyramid have?How many vertices does the pyramid have?

5. Other Geometric FiguresThese are not polyhedron because none of the faces are polygonsSphere:Cylinder:Two bases formed from parallel, congruent circlesCone:Has a circular base

6. Complete Buckle Down Pages

7. Day 23a: Classify and Compare three-dimensional shapes using their properties3b: Construct two-dimensional representations of three-dimensional objects

8. Let’s Review Vocabulary

9. ActivityMrs. Sanders will place you in groups of 5 (2 min.)Each team member will construct one of the items listed on the worksheet (10-15 mins.)The group will complete the chart and discuss answers based on the figures constructed. (10 mins.)

10. ClosureClean up your group areaReturn desks to their usual positionPut away binders and pack up