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