Sponsored Links
This presentation is the property of its rightful owner.
1 / 11

# Translations, Reflections, and Rotations PowerPoint PPT Presentation

Translations, Reflections, and Rotations. 9/16/13. Warm-up 9/16/13. Write and answer the following questions: What do a translation, a rotation, and a reflection have in common? They are transformations.

### Download Presentation

Translations, Reflections, and Rotations

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

## Translations, Reflections, and Rotations

9/16/13

### Warm-up 9/16/13

Write and answer the following questions:

• What do a translation, a rotation, and a reflection have in common? They are transformations.

• What is the difference between a translation, a rotation, and a reflection? Translations are slides, rotations are turns, and reflections are flips.

Note: Warm-up Check today! – Be ready

• 3 questions about rotation (9/11/13)

• How many degrees was the rotation? (9/12/13)

• Rotations (D) WS (9/13/13)

### Translations

• What action is associated with translating? Slide

• Is the image in the same direction as the preimage, opposite directions, or different directions? Same direction

• What are the rules for translations? For example if I want to move 5 units horizontally and -6 units vertically how would I write the rule? (x + 5, y – 6)

### Reflections

• What action is associated with reflecting? Flipping

• Is the image in the same direction as the preimage, opposite directions, or different directions? Opposite directions

• What are the rules for reflecting over the x-axis? y-axis? y=x? y=-x? x-axis: (x, -y), y-axis: (-x, y), y=x: (y, x), y=-x: (-y, x)

### Rotations

• What action is associated with rotating? Turning

• Is the image in the same direction as the preimage, opposite directions, or different directions? Different directions

• What are the rules for rotating 90 degrees clockwise? 90 degrees counterclockwise? 180 degrees? 90⁰ CW: (y, -x), 90⁰ CCW: (-y, x), 180 ⁰ rotation: (-x, -y)

### Work Session

• Work on the Transformations WS

• Put the worksheet in the your class’s box at the end of the period

### Closing 9/16/13

• You will receive a post-it note. On the post-it, write what confuses you about the three transformations we’ve talked about.

• When instructed, post the note on the board for your class period.

Note: Be specific! – For example, write I don’t understand how to reflect over diagonal lines instead of I don’t know how to reflect.

### Homework

• Review Transformations notes and bring books to class tomorrow