Architects and Interior Designers use scale drawings that represent the house or room they are designing. This activity uses Cabri Jr. Geometry software to create a scale drawing with dilations.
Before the Activity
If needed, introduce the features and tools of Cabri Jr. with the file "Getting Started with Cabri Jr." Make sure that Cabri Jr.™ is loaded on the calculators.
During the Activity
The Teacher pages of the file give Answer Keys and a "Discuss with Students" section reviewing scale drawings and proportions.
The Student pages of the file include the Technology Activity, Extensions, and Resources.
After the Activity
Review student answers: As a class, discuss questions that appeared to be more challenging
Re-teach concepts as necessary