1. Happy Thursday 2.8.18 You need your foldable!!
Go Formative! Graph while you wait for your computer: Graph these points and connect: (4,6), (2,4), (-6,-4) Graph the line: x=-2 Find the ordered pair where they intersect ( , )?
You need your foldable!!

3. Learning Target Agenda *Quiz Frequently Missed ?s
*Translation Polygraph
*Video Reflections
*Foldable-Reflections
*Reflection Practice
8.G.A.1
I can verify congruency by measuring and comparing the properties of rotated, reflected or translated geometric figures.

4. Scatter Plot Quiz
FM?s

7. Desmos Translations Polygraph!
Yes or No questions only!
Use words like horizontal, vertical, translation, slide, left, right, up, down
BLUE is Pre-Image (the original) GREEN is Image (the copy)

8. 1. Translate 2 units left and 4 units down?

9. Reflections! https://www.youtube.com/watch?v=ouNp8FtgiEE
Too long-had to fast-forward through

10. Foldable Reflections ~Flip ~Mirrors the image ~Same shape, same size
~Figures are congruent.
~Is reflected over a line (symmetry)

11. Foldable
Write the vertices of A’_________, B’_____________, and C’____________.

12. Hands-On Reflection Practice Working with your team, set up the
original image (YELLOW)
then reflect with it’s
congruent (PURPLE) shape using the
graph sheets and plastic figures.

13. 1. Reflect over y-axis. ?

14. 2. Reflect over x-axis. ?

15. 3. Reflect over line y=x. ?

16. 4. Reflect over y-axis. ?

17. 5. Reflect over x-axis. ?

18. 6. Reflect over line y=x. ?

19. PATTERNS? A(-1, 1) A’ (1,1) B(-1, 5) B’ (1,5) C(-5, 1) C’(5,1)
Let’s examine #1-sketch in comp book and take notes.
A(-1, 1) A’ (1,1) B B’
B(-1, 5) B’ (1,5)
C(-5, 1) C’(5,1) C A A’ C’

20. PATTERNS? A(-1, 1) A’ (-1,-1) B(-1, 5) B’ (-1,-5) C(-5, 1) C’(-5,-1)
Let’s examine #2-sketch in comp book and take notes.
A(-1, 1) A’ (-1,-1) B
B(-1, 5) B’ (-1,-5) C A
C(-5, 1) C’(-5,-1) A’ C’ B’

21. PATTERNS? A(-1, 1) A’ (-1,-1) B(-1, 5) B’ (-1,-5) C(-5, 1) C’(-5,-1)
Let’s examine #2-sketch in comp book and take notes.
A(-1, 1) A’ (-1,-1) B
B(-1, 5) B’ (-1,-5) C A
C(-5, 1) C’(-5,-1) A’ C’ B’

22. 6. Reflect over line y=x. How can we do this without tools?

23. 6. Reflect over line y=x. Draw the line of reflection.
What do you notice about coordinates for ABCD
And A’B’C’D’ D’ B’ A B C’ A’ C D

24. 6. Reflect over line y=x. A(2, 3) A’ (3,2) B(6, 3) B’ (3,6)D’ B’
A(2, 3) A’ (3,2) A B
B(6, 3) B’ (3,6) C’ A’
C(2, -1) C’(-1,2) C D
D(6, -1) D’ (-1,6)
(x, y)→ (y,x)

25. If you finish, may work on ALEKS-everybody working Nobody talking
IXL Practice 90%
If you finish, may work on
ALEKS-everybody working
Nobody talking