Scale Factors - MA.8.GR.2.2

Scale Factors

I can calculate the scale factor of a new image compared to the original image and determine if the scale factor is an enlargement or reduction.

Multiple Select

Recall:

What are the important aspects of scale drawings.

Select all that apply.

• ratios

• proportions

• enlargements

• reductions

Multiple Choice

Scale Factor of 5 is _________________ .

• Reduction
• Enlargement

Multiple Choice

Scale Factor of ½ is __________________ .

• Reduction
• Enlargement

​I Do:

Multiple Choice

You Do:

What is the scale factor from ΔDEF to ΔABC?

• 1/2

• 7/3

• 2

• 10/3

Open Ended

After thinking about this lesson, how could you apply the concepts your learned today to the real world?

Multiple Choice

Exit Ticket:

What is the scale factor?

• 1

• 2

• 1/2

• -2