Middle Grades Math: We've Got You Covered: 2D Area

Objectives

• Students will solve real-world and mathematical problems involving area of two-dimensional objects composed of triangles, quadrilaterals, and polygons.

Vocabulary

• area
• scale
• base and height
• triangle
• quadrilaterals
• polygons

About the Lesson

This lesson involves using the geometry tools to measure the area of two-dimensional shapes from the faces of three-dimensional objects they see in pictures taken outside of the classroom.
As a result, students will:

• Further develop visualization skills as they search for 2D faces in the 3D shapes in the pictures.
• Further develop approximation skills as they adjust the size of the default scale provided so that the measures they find from the 2D faces will be appropriate.
• Solve real-world and mathematical problems involving the area of 2D shapes, possibly of their own creation if time permits students to take their own pictures.