In this unit, students learn to calculate areas of polygons by decomposing, rearranging, and composing shapes. They also represent polyhedra with nets and calculate their surface areas.
Students develop strategies for calculating the area of parallelograms, triangles, and polygons, including generalizing and using formulas.
Students make connections between three-dimensional polyhedra and nets that represent them, then use those nets to calculate the surface area.
Lesson 3 Exploring Parallelograms
Lesson 5 Exploring Triangles
Lesson 11 Projection Sheets
Lesson 11 Nothing But Nets
Lesson 13 Take It To Go
Goals and Glossary
Stamp Log