1. Testing
1. Pick up your homework on the table. 2. Grab a computer and log in 3. Wait at the desktop
Test Code:

2. Testing
1. Pick up your homework on the table. 2. Grab a computer and log in 3. Wait at the desktop
Test Code:

3. How would you describe a dilation?
1. Copy down the Essential Question (EQ). 2. Work on the Warm-up.
Essential Question
How would you describe a dilation?
Warm Up:
Describe the picture

4. Vocabulary
Dilation: a transformation that changes the size of a figure but not the shape. Verb for dilation: Change size

5. HINT: SAME SHAPE, SAME DIRECTION, DIFFERENT SIZE
Dilation Examples A. B.
Not a dilation; the figures are not similar.
Yes a dilation; the figures are similar but different size.
HINT: SAME SHAPE,
SAME DIRECTION,
DIFFERENT SIZE C.
Not a dilation; the figures are not similar.

6. Check It Out! Example 1
Tell whether each transformation appears to be a dilation. Explain. a. b.
Yes, the figures are similar and the image is not turned or flipped.
No, the figures are not similar.

7. Draw the image, and answer the question.
Tell whether the blue figure is a dilation of the red figure. Explain

8. Two type of Dilation

9. Reduction
Enlargement

10. Dilation Day
1. Copy down the Essential Question (EQ). 2. Work on the Warm-up.
Essential Question
How does the scale factor affect the dilation transformation?
Warm Up:
How much bigger are the fries when compared to each other.

11. Dilation
Direction: Multiply each side of the triangle by a value of 2.

12. Question: Is it larger or smaller?
Answer: Enlargement

13. Definition
Enlargement: When you multiply by a value greater than 1.

14. Dilation
Direction: Multiply each side of the triangle by a value of 𝟏 𝟐

15. Question: Is it larger or smaller?
Answer: Reduction

16. Definition
Reduction: When you multiply by a value less than 1 but greater than 0.

17. What is a scale factor?
Scale factor definition The value that you multiply the shape in a dilation.

18. Reduction because, the blue shape is smaller than the red.
The blue figure is a dilation of the red figure.
Identify what type of dilation
Find the scale factor
Solution:
Reduction because, the blue shape is smaller than the red.
Scale factor is less than 1 but greater than 0 because it is a reduction.

19. The blue figure is a dilation of the red figure.
Identify what type of dilation
Find the scale factor

20. Enlargement because, the blue shape is larger than the red.
The blue figure is a dilation of the red figure.
Identify what type of dilation
Find the scale factor
Solution:
Enlargement because, the blue shape is larger than the red.
Scale factor is greater than 1 because it is a enlargement.

21. Reduction because, the blue shape is smaller than the red.
The blue figure is a dilation of the red figure.
Identify what type of dilation
Find the scale factor
Solution:
Reduction because, the blue shape is smaller than the red.
Scale factor is less than 1 but greater than 0 because it is a reduction.

22. The blue figure is a dilation of the red figure.
Identify what type of dilation
Find the scale factor

23. Enlargement because, the blue shape is larger than the red.
The blue figure is a dilation of the red figure.
Identify what type of dilation
Find the scale factor
Solution:
Enlargement because, the blue shape is larger than the red.
Scale factor is greater than 1 because it is a enlargement.