Flexible Transformations (Dilations) : The Big Picture
Presentation
•
Mathematics
•
10th Grade
•
Medium
+4
Standards-aligned
Christopher Morley
Used 3+ times
FREE Resource
2 Slides • 7 Questions
1
The Big Picture Mini-Project
2
Multiple Select
In your project, what must you label the point that is the center of dilation?
C
The origin
The vertex
The center of dilation
3
Multiple Choice
Where on your project must you put the scale factor (k) that you chose?
In the space above your name
In the 'Comments' section
In the 'Description' box
In the 'Title' box
4
Select "key" vertices (like the corners of the figure)
Label the coordinates of the Image
Label the coordinates of the corresponding pre-image
Coordinate Points
Select "key" vertices (like the corners of the figure).
Measure from C to Image
Measure from C to Pre-image
Show measurement as ratio: Image over pre-image
Rulers & Lines
Two ways to show measurements & computations
Some text here about the topic of discussion
5
Multiple Choice
Which of the following is one way to show how you determined the scale factor (k)?
The length of a line in the image divided by the length of the corresponding line in the pre-image
Multiplying the corresponding sides of the pre-image and image
Dividing the corresponding sides of the pre-image and image
Finding the ratio of the corresponding angles of the pre-image and image
6
Multiple Select
Which of the following is another way to show how you determined the scale factor (k)?
With the center of dilation at the origin, compare the coordinates of a vertex point on the image to its corresponding point on the pre-image.
Calculate the ratio of the lengths of two corresponding sides in the pre-image and image.
Measure the length of the longest side of the pre-image and image, and divide the length of the image by the length of the pre-image.
Subtract the coordinates of the pre-image from the coordinates of the image and divide the difference by the length of the pre-image.
7
Multiple Choice
Ideally, how many vertex points are accurately dilated? (you can have fewer but it will make it harder to get an accurate image)
4
8
12
16
20
8
Fill in the Blanks
Type answer...
9
Open Ended
What is the purpose of the My Check column?
The Big Picture Mini-Project
Show answer
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