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Chapter 6 transformations
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Bellwork “quick check” pg. 448 (1-11)
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Complete Pg. 451 “Partner investigation”
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vOCAB
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What do you think of when you hear the word translate?
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With your partner, discuss what you think it means to translate an image in geometry.
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Translate means “to slide”
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Ex.1
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Answer looks like this….
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Ex. 2
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Ex. 3 You can use a table instead of graphing.
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Try making a table on this one…
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Ex. 4 describe what happened
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Try this one on your own…
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Lets try some in your textbook…
pg. 456 (1-5)
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Aleks computer Assignment- Skills practice & homework practice
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Day 2- Reflections
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Bellwork
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What do you think of when you hear the word reflection?
What happens to the image when it is reflected?
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IMPORTANT*
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Write this down!
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Ex. 1
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Ex. 2
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Answer:
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Try this one on your own…
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Ex. 3
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Your answer should look something like this…
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One more….
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Partner practice pg. 465 (1-7)
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Independent Practice on Aleks
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Day 3 - Rotations
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Bellwork
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What does it mean to rotate something?
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Vocab 1.) Rotation 2.) Center of rotation
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Very Important Rules! Please write them down!
When rotating around the origin (0,0) Clockwise Counter clockwise Notation rule
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Ex. 1 Step 1: graph the image
Step 2: make a list of new coordinates using rule notation Step 3: plot new image
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Try this one on your own…
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Day 4- Dilations
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BEllwork After a translations 2 units left and 4 units down.
1.) Find the coordinates for triangle xyz After a reflection across the y-axis. 2.) Find the coordinates for triangle xyz After a rotation 180 degrees about the origin 3.) Find the coordinates for triangle xyz After a translations 2 units left and 4 units down.
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Discuss with your neighbor: What do you think of when you hear the word dilate? What do you think it means to dilate an image?
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Recap from yesterday
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A dilation can be an enlargement or a reduction.
To enlarge means: ___________________________ To reduce means:____________________________
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The Scale factor tells you what to multiply all the coordinates by.
Multiplying by a whole number will _____________ the image. Multiplying by a fraction will ______________ the image.
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Ex. 1
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Ex.2
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Ex. 3
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Ex. 4
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Ex. 4
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Try this one on your own…
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In class assignment
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