**Welcome to Geometry 2 SPRING semester!**

*** ANNOUNCEMENTS ***

**TO DOWNLOAD THE UNIT 2 CIRCLES PACKET: http://www.mathematicsvisionproject.org/uploads/1/1/6/3/11636986/sec2_mod7_circgeo_se_83113.pdf**

**Here is our semester May & June calendar (updated regularly & subject to change)**

**=================================****=================================****=========**

We meet in the UWT1 room (BB107) on Monday and Wednesday.

My email is mbillin@tacoma.k12.wa.us and I am a part-time instructor this year

(on campus Monday & Wednesday & Friday).

What can you do to get more support?

- There's after school tutoring in the Math Lab at 1950 (Mon - Thurs 3:30-4:30)
- Check out videos and practice questions on Khan Academy here: https://www.khanacademy.org/math/geometry-home
- Come to class early (or stay late) to ask questions or to make sure your Geometry Journal is updated and

that you have all the materials you need

**Daily Log**

============================================================================================================

**UNIT 2 - CIRCLES**

**Day 20 (5/03) Area of Regular Polygons Part 2**

Standard: Find area of regular polygons

Homework:

**Day 20 (5/01) Area of Regular Polygons Part 1**

Standard: Find area of regular polygons

Homework: 3 triangle area problems (see last slide)

- Entry Task: Review triangle area formulas

- Practice solving for area of triangle using trigonometry and Pythagorean Theorem

**Day 19 (4/26) Summative Assessment on Circles Properties standard (1 of 2 Circle Unit Standards)**

**Day 18 (4/24) Review**

Standard: Review Circles Properties

Homework: Prepare for summative on Wednesday

**Day 17 (4/19) Tangent Lines to Circles**

Standard: Properties of tangents to circles

Homework: Finish problems on 2nd page of handout

- Take notes on tangent lines to circles

- Work on the 2nd page of the tangent lines handout

- Work on Formative Check

**Day 16 (4/17) Inscribed Angles**Relate Inscribed Angles to Arc Measures

Homework: Inscribed Angles Worksheet

- Entry Task

- 7.3 (pg. 14) of Packet

- 7.3 (pg. 20) of Packet

- Start Inscribed Angles Worksheet

Helpful videos

https://www.youtube.com/watch?v=8g5grYXSE_E

**Day 15 (4/12) Central Angles and Arcs**

**Day 14 (4/10) Centering ourselves around Circles **

Finding the center of rotation and new terminology

Homework: 7.1 #1-14 (pg. 6-7)

- 7.1 lesson in Packet

- Circles Definitions: See Notes1 and Notes2

Helpful videos

How to find the center of rotation of 2 figures: https://www.youtube.com/watch?v=FrpkFL3yc3Y

How to use patty paper: https://www.youtube.com/watch?v=XWbHoACpQ0g

https://www.youtube.com/watch?v=XIuHz_RNR6E

============================================================================================================

**UNIT 1 - Similarity & Right Triangles**

Day 13 (3/22) Summative Assessment on 2 trig standards

Day 12 (3/20) REVIEW:

Remember that the Formative Assessment you get in class this day is similar to what will be on the Summative.

Day 11 (3/15) Use Trig to Solve **Applied** Problems *continued*

Solve applied problems using trig ratios

Homework: Pg. 51-52 #5-8 & #15-17

- Entry Task: More practice solving for missing sides of triangles using trigonometry

- Worked through applied problems on Pg. 57 #4-6

Day 10 (3/13) Use Trig to Solve **Applied** Problems

Solve applied problems using trig ratios

Homework: Pg. 57 #4-5

- Entry Task: Critique response on exit task from last class

- Introduced new vocabulary: Angle of elevation, angle of depression

- Practice solving applied problems using trig

Day 9 (3/08) Use Trig to Solve Problems *continued*

Solve Problems using trig Ratios

Homework: Work on Trig Project (summative) & Finish Entry Task worksheet (if you were absent

at all this week or last week)

- Entry Task: Solve first 2 problems on worksheet

- Triangle Sort activity

- Talk about Trig Project and what to expect in terms of assessment

- Exit Task as formative check

Day 8 (3/06) Use Trig to Solve Problems

Solve Problems using trig Ratios

Homework: Problem Set on last Page of handout (3 problems)

- Entry Task: Record definition of 3 trigonometric ratios in journal

- Go over HW by checking answers using Key & asking questions

- Use calculator to find the sine and cosine of varying degrees (see table on 2nd page of handout)

- Worked through the problems on the handout

Day 7 (3/01) Define Trigonometric Ratios

Define sine, cosine, and tangent Ratios

Homework: 6.8 #1-10 (pg. 46-47)

- Entry Task: Use the Pythagorean Theorem

- Explore 30-60-90 right triangles (see pg. 44 of Packet)

- Definition of trigonometric ratios

- Work through some of the problems on pg. 46-47 to reinforce

the ratios we just learned and to practice using the Pythagorean Thm

SOME HELPFUL VIDEOS:

For trigonometric ratios

https://www.youtube.com/watch?v=OImuDU3D7Ak

https://www.youtube.com/watch?v=SqFQZWRALGc&t=279s

For using the Pythagorean Theorem

https://www.youtube.com/watch?v=uZAnoaWwhBU

https://www.youtube.com/watch?v=AA6RfgP-AHU

Day 6 (2/27) Review & Summative

Understand and use the relationships found in similar triangles

No Homework

Day 5 (2/22) Review & Formative

Use the Pythagorean Theorem to find missing parts of a right triangle

Homework: Prepare for Summative Assessment

- Entry Task: Solve problem using Side-splitter theorem

- Discussed HW assigned last class

- Review of Pythagorean Theorem

- Formative Check and checked answers using Key*SOME ADDITIONAL RESOURCES:*

- Work through Prove Triangles Similar Worksheet (if not already done) and check using Key

- Look for helpful videos on youtube or khan academy. For example see here.

Day 4 (2/15) Side-Splitter Theorem

Use relationships found in triangles with a parallel line to one side

Homework in Similarity Packet: 6.4 #7-18

- Entry Task: Record 3 theorems for triangle similarity

- Discussed HW assigned last class

- Explored triangle within triangles -> see page 22 & 23

- Derived the Side-Splitter Theorem

Day 3 (2/13) Show Triangles Similar

Use properties of dilations to compare similar figures

Homework: Finish "Prove Triangles Similar" worksheet

- Entry Task: Formative Assessment on Standard #1 (partial)

- Reviewed Definition of Similarity

- Explored when the information given is enough to determine triangle similarity

-> see page 18 & 19 Part2 (AAA Similarity)

-> see Prove Triangles Similar worksheet

Day 2 (2/08) Similarity & Proportions

Use properties of dilations to compare similar figures

Homework in Similarity Packet: 6.3 #10-13 & #18-21

- Entry Task: Record Definition of Dilation

- Check and clarify HW from last class

- Extend properties to Definition of Similarity

- Practice writing and solving proportions -> Page 20 (#1-8)

(2/06)

School cancelled due to weather

(2/01) iReady Testing

Period 1 - Meet in the Photo Room (Janet's room downstairs) at 1950

Period 2 - Meet in the Post Office Room 224

Day 1 (1/30) Dilations

Discover and use properties of dilations

Homework in Similarity Packet: 6.2 #1-18 (Page 12-15)

- Entry Task: "SUIT UP" -> Get all necessary materials

- Introduce: Dilations, center point, scale factor

- Develop further in Packet 6.2 page 9 - 11

- Start HW