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[Pages:22]Geometry Lesson 1.4A

Thurday, August 20, 2015

Geometry: Module 1 Lesson 4

Bellwork: Angle measures and angle bisectors Explain 1: 1) Discuss some random (but necessary) theorems and postulates 2) Understand Conditional Statements 3) Understand difference between inductive and deductive reasoning 4) Be able to use a counterexample to prove false with inductive reasoning Practice: Section 1.4/ 18all, 1316all, 2126all, 28

Opening 2: 5) Be able to use deductive reasoning to set up and solve equations and justify steps Practice 2: Lesson 1.4/ 1720all Presentations: Closing:

Geometry Lesson 1.4A

Thurday, August 20, 2015

1.4 Reasoning and Proof:

Some Extra Random

Definitions and Postulates

complementary angles:

pg. 48

Linear Pair Theorem:

34

Geometry Lesson 1.4A

1.4 Reasoning and Proof:

Postulates about Points, Lines and Planes pg. 50

Thurday, August 20, 2015

Geometry Lesson 1.4A

Thurday, August 20, 2015

1.4 Reasoning and Proof:

Intersection of Planes

Postulates about Points, Lines and Planes

pg. 50

Geometry Lesson 1.4A

1.4 Reasoning and Proof:

Postulates about Points, Lines and Planes pg. 51

Thurday, August 20, 2015

Geometry Lesson 1.4A

1.4 Reasoning and Proof:

Postulates about Points, Lines and Planes pg. 51

Thurday, August 20, 2015

Geometry Lesson 1.4A

1.4 Reasoning and Proof:

Intro to Proofs Notebook Paper

Thurday, August 20, 2015

Geometry Lesson 1.4A

Thurday, August 20, 2015

1.4 Reasoning and Example 1)

Proof:

Identify the hypothesis and conclusion of each conditional statement.

Intro to Proofs

Notebook Paper

a) If today is thursday then yesterday was wednesday.

b) If an angle is acute, then the angle is less than 90o.

c) To do well in this class you have to study.

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