Honors Geometry Fall 2004

Unit 2 – Reasoning in Geometry

 

Lesson

Topic

Read and Take Notes

Class work

Assignment

2.1

An Introduction to Proofs

Pg 80-82

Notes/Examples

Guided Skills Practice

Pg 83/ #6-8

(2.1)  Page 83-86/ #9-12, 22-28, 33-39

2.2

An Introduction to Logic

Pg 90-93

Notes/Examples

Guided Skills Practice

Pg 94/ #6-8

(2.2)  Page 95-97/ #13-37 odd, 38

          Enrichment Masters, 2.2, page 9

2.3

Definitions

Pg 99-101

Notes/Examples

Guided Skills Practice

Pg 102/ #6-7

(2.3)   Page 103-105/ #9-29 odd

12.1

Truth and Validity of Logical Arguments

Pg 768-771

Notes/Examples

Guided Skills Practice

Pg 772/ #6-9

(12.1)  Page 773-774/ #11-27 odd, 32-36

 

12.2

And, Or, and Not, in Logic

Pg 776-778

Notes/Examples

Guided Skills Practice

Pg 779/ #9,10

(12.2)  Page 779-781/ #11-33 odd, 34,35

 

12.3

A Closer Look at the If-Then Statements

Pg 784-787

Notes/Examples

Guided Skills Practice

Pg 788/ #6-9

(12.3)  Page 788-790/ #11, 14-17,21,25,26,27

 

2.5

Conjectures That Lead to Theorems

Pg 117-120

Notes/Examples

Guided Skills Practice

Pg 121/ #7

(2.5)  Page 121-124/ #11,13,15,17-24, 39-43

          

IG

 

Instructional Guide Lesson

 

Notes/Examples: deductive reasoning and valid arguments

Worksheet – complete logical chains

 

12.4

 

Indirect Proof

Pg 791-793

Notes/Examples

Guided Skills Practice

Pg 794/ #7-10

(12.4) Page 794-795/ #13,15,17,34,36,37,38

There may be additions to the assignments so you need to pay attention to directions in class

 

 

U1assign 2004

 

 

Indicators

2.2.3 use inductive or deductive reasoning

                  2.2.3.a define and apply deductive reasoning.

                  2.2.3.b define and apply inductive reasoning.

                  2.2.3.c distinguish between inductive and deductive reasoning.

                  2.2.3.d develop direct proofs using a paragraph, flowchart, or 2-column format.

                  2.2.3.e develop indirect proofs using paragraph or 2-column format.

2.2.3.2 construct a logical argument.

2.2.3.3 determine the validity of a logical argument using truth tables.

2.2.3.4 solve problems deductively or inductively using the structure of logic.

2.2.3.5 write and interpret conditional statements including the converse, inverse and contrapositive.

 

Essential Vocabulary:

Adjacent angles                                                                                                                                       And, or, not

Antecedent                                                                                                                                              Biconditional

Conclusion                                                                                                                                              Conditional

Consequent                                                                                                                                             Contradiction

Contrapositive                                                                                                                                        Converse

Deductive                                                                                                                                                Definition

Direct proof                                                                                                                                            Euler diagram

Hypothesis                                                                                                                                             Indirect proof

Inductive                                                                                                                                                 Invalid

Inverse                                                                                                                                                    Logic

Logically equivalent                                                                                                                                Modus Ponens

Modus Tollens                                                                                                                                       Negation

Premise                                                                                                                                                   Proof

Theorem                                                                                                                                                  Transitive

Truth table                                                                                                                                              Valid

Vertical angles