Chapter 6 transformations

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Presentation transcript:

Chapter 6 transformations

Bellwork “quick check” pg. 448 (1-11)

Complete Pg. 451 “Partner investigation”

vOCAB

What do you think of when you hear the word translate?

With your partner, discuss what you think it means to translate an image in geometry.

Translate means “to slide”

Ex.1

Answer looks like this….

Ex. 2

Ex. 3 You can use a table instead of graphing.

Try making a table on this one…

Ex. 4 describe what happened

Try this one on your own…

Lets try some in your textbook… pg. 456 (1-5)

Aleks computer Assignment- Skills practice & homework practice

Day 2- Reflections

Bellwork

What do you think of when you hear the word reflection? What happens to the image when it is reflected?

IMPORTANT*

Write this down!

Ex. 1

Ex. 2

Answer:

Try this one on your own…

Ex. 3

Your answer should look something like this…

One more….

Partner practice pg. 465 (1-7)

Independent Practice on Aleks

Day 3 - Rotations

Bellwork

What does it mean to rotate something?

Vocab 1.) Rotation 2.) Center of rotation

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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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Day 4- Dilations

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.

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?

Recap from yesterday

A dilation can be an enlargement or a reduction. To enlarge means: ___________________________ To reduce means:____________________________

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.

Ex. 1

Ex.2

Ex. 3

Ex. 4

Ex. 4

Try this one on your own…

In class assignment