1. Transformations: Translations and Reflections
DO NOW 11.5:
What is the transformation that occurred? How would you represent the transformation in arrow notation?
Transformations: Translations and Reflections
Agenda
HW Review
Geogebra Transformations
Logo Transformations Example
Project Work Time

2. HW Review

3. Transformations
Use your whiteboards to help you answer the following at your tables. Once you have your answers, we will test them algebraically using GeoGebra.
Where will the L-Shape be if it is translated −2 units horizontally and +1 units vertically?
Where will the L-Shape be if it is reflected over the line x = 2?
Where will the L-Shape be if it is rotated through 180° around the origin?
What transformation will move the L-shape to this new position? (See GeoGebra)

4. Logo Project Example

5. Logo Project Example: Translations

6. Debrief: Transformations
What does it mean if a shape has undergone a “transformation”? What does it mean for a tranformation to be “rigid”?
In your own words, define “translation”, “reflection” and “rotation.”
How can you describe these transformations mathematically?

7. Transformations DO NOW 11/6:
Graph the original and image of the figure using the transformation given.
Transformations
Agenda
Transformation Practice
Card Matching Activity
Exit Ticket
Debrief

8. Translation
Where will the “L” be if it is translated to the left 6 units and down 4 units?

9. Rotation
Where will the “L” be if it is rotated 90° counterclockwise around the origin?

10. Reflection
Where will the “L” be if it is reflected across the line “y = -x”?

11. Choose Your Own!
Generate your own transformation (write it down on a scrap piece of paper so you don’t forget)
Paste/tape the L on your paper in its new position.
Trade with a partner, and have them write in their own words and arrow notation what transformation occurred.

12. Transformations: Multiples
DO NOW 11/7:
What is the transformation shown here? Write an algebraic rule that will work for each coordinate.
Transformations: Multiples
Agenda
HW Peer Review
Matching Card Game
Exit Ticket
Debrief

13. Matching Cards Group Activity
Each group member take turns connecting two shape cards with a transformation card.
Each time you do this, explain your thinking clearly and carefully.
The next group member should then either explain that reasoning again in their own words, or challenge the reasons you gave.
It is important that everyone in the group understands the placing of a word card between two shape cards.
Ultimately, you want to make as many connections as possible. Use all the shape card, and all the word the cards if possible.

14. Example

15. *MUST BE IN NOTES!*
Debrief