Grades

6-7

Permitted Use

Stream, Download and Share

14 Favorites

2358 Views

2358 Views

In this interactive, students explore two-dimensional scaling, or how the area of a rectangle changes when both length and width are increased proportionately. By investigating how much paint would be required to create murals in different sizes, students learn that doubling a rectangle’s measurements does not double its area, it quadruples it! In the accompanying classroom activity, students use grid paper to draw a series of squares whose dimensions increase proportionately and record the changing data in a table. This resource is part of the Math at the Core: Middle School Collection.

Learn how the area of a rectangle changes when both length and width are increased proportionately in this interactive from KET’s Scale City.

Learn how the area of a rectangle changes when both length and width are increased proportionately in this interactive from KET’s Scale City.

Contributor:

Funder:

Producer:

© 2017 PBS & WGBH Educational Foundation. All rights reserved.