1. What will I need? You will need your: 1.Composition notebook. 2.Lesson 20-1: Exploring Similar Triangles, page 265 – 276. 3.Pencil 2 x = 6 3 x = 9 2 x = 18 7 x = 4 21 x = 12 7 x = 84 What should I do? Work independently and quietly to complete problems #5a & 5b on the Unit 3: Getting Ready on page 202 in my note taking journal. How long will I have to complete it? You will have 5 minutes to gather the materials need and complete the Warm-up to the right. WARM-UP

2. Learning Targets: Identify similar triangles. Identify corresponding sides and angles in similar triangles. TEK(S): I know that ratios of corresponding sides of similar shapes are proportional. (3A)

5. How long do we have to complete the activity? 6 minutes What do we do? Complete problem #7a, & b in your group.

6. How long do we have to complete the activity? 6 minutes What do we do? Complete problem #7a, & b in your group.

7. How long do we have to complete the activity? 10 minutes What do we do? Complete the Exploring Similar Figures WS #’s 1-6 (ALL) in your group. Notes: Remember to choose side lengths that will help you set-up your proportion. 10 x = 25 6 x = 15 10 x = 150 40 x = 20 50 x = 25 40 x = 1000

8. How long do we have to complete the activity? 10 minutes What do we do? Complete the Exploring Similar Figures WS #’s 1-6 (ALL) in your group. 30 y = 15 16 y = 8 30y = 240 5 14.4 = 12 y 6 = y 72 = 12 y 30 x = 15 34 x = 17 30 x = 510 13 14.4 = 12 x 15.6 = x 187.2 = 12 x

9. How long do we have to complete the activity? 10 minutes What do we do? Complete the Exploring Similar Figures WS #’s 1-6 (ALL) in your group.

10. W- Write homework assignment in planner Lesson 20–1: Exploring Similar Figures WS (#’s 1–7) due on Wednesday at the beginning of class. R - Return materials and organize supplies A -Assess how well you worked in a group or individually Did I/we maintain operating standards? Did I/we work toward learning goals? Did I/we complete tasks? P- Praise one another for high quality work: 5 team points for a “P” performance overall

11. How long do we have to complete the activity? 6 minutes What do we do? Complete the Check Your understanding #’s 8 – 9 Independently. Page 269 #’s 8 – 9

12. How long do we have to complete the activity? 10 minutes What do we do? Complete the Exploring Similar Figures WS #’s 1-6 (ALL) in your group. Page 269 #8 Image Pre-image Answer: Are the corresponding sides are in proportion? Are the corresponding angles congruent?

13. How long do we have to complete the activity? 10 minutes What do we do? Complete the Exploring Similar Figures WS #’s 1-6 (ALL) in your group. Page 269 #9

14. Page 270

16. W- Write homework assignment in planner Lesson 20–1: Exploring Similarity Practice, P. 270 #’s 10-14 Exploring Similar Figures Worksheet (HW) #’s 1-7 - Due on Thursday at the beginning of class. R - Return materials and organize supplies A -Assess how well you worked in a group or individually Did I/we maintain operating standards? Did I/we work toward learning goals? Did I/we complete tasks? P- Praise one another for high quality work: 5 team points for a “P” performance overall