today’s lesson: what: transformations (translations)... why: to introduce transformations and...
DESCRIPTION
3)Rotation 4)Dilation A AIAI Let’s focus on translations... A AIAITRANSCRIPT
Today’s Lesson:What:
transformations (Translations). . .
Why: To introduce transformations and begin performing translations .
What is a transformation??
A transformation refers to a specific way a figure in geometry is either changed or __________________ to create a different image.
4 Types of Transformations:
1) Translation
2) Reflection
A AI
A AI
moved
3) Rotation
4) Dilation
A AI
Let’s focus on translations . . .
A AI
A AI
PRE-IMAGE IMAGE
We call this “A___________.”
First things first . . .
Perform the following translations:
1) Translate the figure (2, -4):
This means two units to the RIGHT and four units DOWN!
Perform the following translations:
2) Translate the figure (-3, 1):
This means three units to the LEFT and ONE unit up!
Perform the following translations:
3) Translate the figure (-4, -4):
This means four units to the LEFT and four units DOWN!
Perform the following translations:
4) Translate the figure (6, -2):
This means six units to the RIGHT and two units DOWN!
1)If point A is located at (2, 5) and is translated three units to the left and two units up, where would A1 be?
2)If point A is located at (-4, 2) and is translated five units to the right and four units down, where would A1 be?
(-1, 7)
(1, -2)
END OF LESSON
The next slides are student copies of the notes for this lesson. These notes were handed out in class
and filled-in as the lesson progressed.
NOTE: The last slide(s) in any lesson slideshow (entitled “Practice Work”)
represent the homework assigned for that day.
Math-7 NOTES DATE: ______/_______/_______What: transformations (Translations). . .
Why: To introduce transformations and begin performing translations .
NAME:
What is a transformation??
A transformation refers to a specific way a figure in geometry is either changed or __________________ to create a different image.
Translations:
4 Types of Transformations:
1) Translation
2) Reflection
3) Rotation
4) Dilation
A AI
A AI
A AI
A AI
A AI
PRE-IMAGE IMAGE
We call this “A___________.”
Perform the following translations:
1) Translate the figure (2, -4): 2) Translate the figure (-3, 1):
3) Translate the figure (-4, -4): 4) Translate the figure (6, -2):
1) If point A is located at (2, 5) and is translated three units to the left and two units up, where would A1 be?
2) If point A is located at (-4, 2) and is translated five units to the right and four units down, where would A1 be?
This means two units to the right and four units down!
Math-7 Practice/ homework“translations”
NAME: ____________________________DATE: ______/_______/_______
(-1, 0) (1, -2)
(3, 0) (1, -2)
9) 10)
11) 12)