# Three-Dimensional Geometry Lesson Plan

Instructor: Christopher Sailus

Chris has an M.A. in history and taught university and high school history.

In this lesson plan, we introduce our students to basic geometric shapes through recognizing geometric shapes in the classroom and then by seeking them out in the school and the world in which they live.

## Learning Objectives

After this lesson, students will be able to:

• Explain the properties of four basic three-dimensional shapes
• Recognize three-dimensional shapes in the world around them

50 minutes

## Key Vocabulary

• three-dimensional shape
• rectangular prism
• cube
• cylinder
• sphere

## Curriculum Standards

• CCSS.Math.Content.3.G.A.1

Understand that shapes in different categories (e.g., rhombuses, rectangles, and others) may share attributes (e.g., having four sides), and that the shared attributes can define a larger category (e.g., quadrilaterals). Recognize rhombuses, rectangles, and squares as examples of quadrilaterals, and draw examples of quadrilaterals that do not belong to any of these subcategories.

• CCSS.Math.Content.3.MD.D.8

Solve real world and mathematical problems involving perimeters of polygons, including finding the perimeter given the side lengths, finding an unknown side length, and exhibiting rectangles with the same perimeter and different areas or with the same area and different perimeters.

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