Geometry

 

Salmen High School Weekly Lesson Plan

 

Teacher: Courtwright         Grade: 10       Subject: Geometry      Week: 11-30-09

 

Monday

Tuesday

Wednesday

Thursday

Friday

 

 

Weekly Overview:

 

 

Unit Description:  Unit Description:  :  Unit 3 Triangles and More Triangles

 

Essential Questions

·        How can classifying triangles identify their special characteristics?

·        What special relationships occur between congruent triangles and similar triangles?

·        What special properties exist in a right triangle that makes it unique?

·        How can special segments of a triangle be used to solve real-world problems?

·        How can points of concurrency be used in real- world situations?

 

Standards/Benchmarks/GLEs: 1,2,3,4,8,9,10,11,12,17,18,19

 

 

 

Objectives:

 

3.1.4 Proving Triangles Congruent

 

CPCTC – solve for missing corresponding measures of congruent triangles

 

Students will be able to identify and prove that triangles are congruent by SAS, SSS, ASA and AAS theorems.

 

 

3.1.4 Proving Triangles Congruent

 

Students will be able to identify and prove that triangles are congruent by SAS, SSS, ASA and AAS theorems.

 

Name similar triangles and understand that the sides are proportional and the angles are congruent.

 

 

3.2.1 Similar Figures

 

Students will solve equations involving proportions

 

 

3.2.1 Similar Figures

 

Determine scale factors and whether polygons are similar.

 

Write similarity statements.

 

 

 

3.2.1 Similar Figures

 

Determine scale factors and whether polygons are similar.

 

Write similarity statements.

 

 

 

 

Student Learning Activities:

 

 

 

 

3.1.4 Lesson Enhancement on using algebra and specific line segments in triangles. What other info is needed to prove triangles congruent?

 

Test on proving triangles congruent, segments in triangles, and points of concurrency

 

Finish 3.1.4 LE

 

 

 

7-1 Practice/ 7-2 Practice(Glencoe) On solving proportions, finding ratios and exploring similar polygons

 

 

 

 

Making conjectures about similarity activity p.472 (explore photos)

 

8.3 Lesson opener Lute of Pythagoras- similar polygons

 

8.3 Practice A – determine which figures are similar and write statements of proportionality, similarity, and determine scale factors

 

Mirror Trick

 

8.4 Lesson opener – golf problem

 

 

8.3 Practice B – continue determining similarity, scale factors, writing similarity statements and solving for missing sides in similar polygons

 

 

 

Homework:

 

Pass Lessons 8-11

 

Study for test on proving triangles congruent

 

Finish 3.1.4 Lesson Enhancement

 

 

Finish 7-1/7-2 worksheets

 

Finish 8.3 Practice A

 

Finish 8.3 Practice B

 

Assessments: There will be a test on congruent triangles and segments in triangles on Tuesday.

 

 

How will I address literacy this week? We will use vocabulary cards as we explore similarity.