### Unit 9

UNIT 9; Transformations and Symmetry

In this unit we will learn how photographers use reflections, rotations, and symmetry to make photographs interesting and visually appealing.

Lesson 1: {9-1 & 9-2} Reflections and Translations

Objective: Students will know the difference between reflections and translations and be able to graph the corresponding prime points.

CW:  https://www.educreations.com/lesson/view/unit-9-9-1-9-2/27056990/?s=pDZEWy&ref=app

**DISCLAIMER: ERROR IN VIDEO
Tips and Tricks:
Reflecting across the x axis: multiply y-coordinate by -1 thus (x,y) becomes (x, -y)
Reflecting across the y-axis: multiply x coordinate by -1 thus (x,y) becomes (-x, y)

HW: p. 629: 27-32, 47 and p. 635: 15-18, 26

Lesson 2:

Objective: Students will know degrees of rotations and be able to identify lines of symmetry.

CW: https://www.educreations.com/lesson/view/unit-9-9-3-9-5/27201485/?s=OwVQHl&ref=app

HW: p. 644: 14-19, 24, 25, 37, and p. 666 1-6

Lesson 3:

Objective: Students will know dilation's and be able to draw dilutions in the coordinate plane.

CW: https://www.educreations.com/lesson/view/9-6-dilations/27297532/?s=b95LoC&ref=app

HW: p. 678: 21, 22, 23 and p. 685: 11-15, 17, 19, 20, 29, 30, 31,

No Assessments