In this lesson, students apply their knowledge of the relationships between original and scaled figures. Students decide what information is necessary to move backward and forward between lengths, surface areas, and volumes of an original solid and its dilation. They communicate with each other to obtain the data they need to solve a problem. Then, in an optional activity, they create a mathematical model of a real-world situation.

As students persist in asking their peers for information, they are making sense of a problem (MP1).