# Changing Scales

##### This Changing Scales assessment also includes:

Pupils determine scale factors from one figure to another and the scale factor in the reverse direction. Scholars compute the percent changes between three figures.

CCSS: Designed

##### Instructional Ideas

• Lead a discussion on how to figure out scale factors when only given percentages
• Give the class the scale factor as a percent and ask them to draw two images that represent the scale factor
##### Classroom Considerations

• Learners should be familiar with finding scale factors
• 14th installment in a 20-part series
##### Pros

• The answer keys show the arithmetic steps needed to arrive at the solution
• Highlights the places where the mathematical practices are used within the lesson

• None