Unit 5, Lesson 1
Solids of Rotation
Geometry
Preparation
Lesson Narrative
In this lesson, students visualize solids of rotation created from rotating two-dimensional figures, around an axis of rotation. They will interact with figures by using either physical objects or an applet. Students move both from a two-dimensional figure to a solid and vice versa to see the connection between the figures and the solids.
As students describe characteristics of solids, they have the opportunity to use language precisely (MP6). When students visualize the relationship between two- and three-dimensional objects, they are thinking abstractly (MP2).
- Determine the two-dimensional shape that when rotated using a given axis generates a particular three-dimensional solid.
- Identify and describe (using words and other representations) the three-dimensional solid created by rotating a two-dimensional figure, using a linear axis.