1. Geometry Wed 10/15/14 Warm-ups….Complete Guided Reading Slide
Discussion/Notes/Guided Practice
Section 2.6 Algebraic Proofs
Homework:
Algebraic Proofs Practice Worksheet

2. After this section, you will be able to:
Use algebra to write two-column proofs
Use properties of equality in geometry proofs
Success Criteria: Q&A, Guided Practice, Homework

3. Guided Reading – pg 94
Property
Definition
Example
Reflexive
Symmetric
Transitive
Addition Property of Equality
Subtraction Property of Equality
Multiplication Property of Equality
Division Property of Equality
Substitution
Distributive Property
Please look at example 1 to see how these properties are used to JUSTIFY WHY the problem can be solved.

4. Please read Pg. 95
2. What is a two-column proof (also called a formal proof)?
3. Copy Example 2 into your notes.

5. 2-6 Algebraic Proofs What is deductive reasoning?
Pg. 94
What is deductive reasoning?
Reasoning that uses facts, definitions, and other known information.
What is inductive reasoning?
Reasoning based on examples that you have already seen.

6. Solve the following problem:
Why are you allowed to do those steps? How do you know they work?

7. Writing an Algebraic Proof#1
Statements
Reasons

8. Writing an Algebraic Proof#2
Statements
Reasons