This Instructional Activity is a part of the Lesson 17, Unit 1, Grade 7. Give the measurements of the original image lengths for the table prior to beginning Example 1. Challenge students by giving problems that use different units of measurement and have them compare the scale factors. After reading the prompt with the class, discuss the following questions: What type of scale drawing is the sticker? It is an enlargement or a magnification of the original sketch. What is the importance of proportionality for Jake?