Lesson 13 - Reasoning & Proof

1-1 Basic Constructions

1-1 Math XL

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Knowre 1.1 (undefined terms)

1-2 Patterns and Inductive Reasoning

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1-3 Conditional Statements

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Knowre 2-1 (Conditional & Biconditionals)

1-4 Biconditional & Definitions

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1-5 Deductive Reasoning

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1-6 Reasoning in Algebra & Geometry

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Page 3.20

Knowre 2-2 Algebraic Proofs

Proof of 1=2 on page 635 of your book

1-7 Proving Angles Congruent

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Knowre 2-3 Introduction to Geometry Proof

Write a proof for this theorem: If two angles are supplements of congruent angles, then the two angles are congruent. (See page 644 for help to set up the proof)

Complete Challenge problems on page 645 (27-31).

Work on 5 proofs with Mrs. Gagnon (riddle sheet).

Pull It All Together

Complete the analyzing a Calendar Problem on page 650.