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Geometry Date: 9/12/2011 Section 2.5 pg 89-91

Geometry Date: 9/12/2011 Section 2.5 pg 89-91 Objective: Students will Identify and use basic postulates about points, lines, and planes and will investigate writing proofs. Bell Ringer: None HW Requests: pg 78 #34-39, 40, 42, 44.

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Geometry Date: 9/12/2011 Section 2.5 pg 89-91

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  1. Geometry Date: 9/12/2011 Section 2.5 pg 89-91 • Objective: Students will Identify and use basic postulates • about points, lines, and planes and will investigate writing • proofs. • Bell Ringer: None • HW Requests: pg 78 #34-39, 40, 42, 44. • HW: Pg 92 #13, 15, 16-21 evens ; 22-27; Period 3 complete • worksheet, Read Section 2.6 • Get Syllabus (signed portion due Friday) • Mini Quiz after finishing Section 2.3 • Mon. Tutoring Ms. Harton

  2. Fundamental Questions Pg 89-91 Section 2.5 What is deductive reasoning? Pg 82. Deductive reasoning uses facts, rules, definitions or properties to reach logical conclusions. (Q) 2. What is the difference between inductive and deductive reasoning? One use facts, rules definitions or properties to reach conclusions. The other relies on looking at specific examples and making educated guesses.

  3. Fundamental Questions • Pg 89-91 Section 2.5 • 3. What are axioms, postulates and theorems and how do we use them? • Postulates and axioms are statements that describe a fundamental relationship between the basic terms of geometry. Postulates are accepted as true. (Q) • What are undefined terms? • 4. What is a theorem? • A conjecture that has been proven true. • 5. How might we use axioms, postulates and theorems in deductive reasoning? • These are the facts, rules definitions or properties to reach logical conclusions.

  4. Fundamental Questions • Pg 89-91 Section 2.5 pg 91 #4 (Study Tip -89), 6-9

  5. Geometry Date: 9/13/2011 Section 2.5 pg 89-91 • 1st period did not meet due to testing • 3rd Period met for 27 minutes • Objective: Students will Identify and use basic postulates • about points, lines, and planes and will investigate writing • proofs. • Online Textbook: Glencoe.com Illinois Geometry 2005 • UserName: geoil05 Password vanef4M8 • Bell Ringer: Go over 5 week assessment • HW Requests: pg 78 #34-39, 40, 42, 44. • Pg92 #13, 15, 16-21 evens ; 22-27 • Go over SGI pg 81 • HW: Skills Practice 2.5 pg 83; Read Section 2.6 • Get Syllabus (signed portion due Friday) • Mini Quiz after finishing Section 2.3 • Mon. Tutoring Ms. Harton

  6. Geometry Date: 9/14/2011 Section 2.5 pg 89-91 • Objective: SWBAT write paragraph proofs. • Online Textbook: Glencoe.com Illinois Geometry 2005 • UserName: geoil05 Password vanef4M8 • Bell Ringer: In a survey (from the early 90’s) 26 people liked • M. C. Hammer, 5 liked Vanilla Ice, 2 liked both, and 15 liked • neither. How many people were surveyed? What is the universal set? • HW Requests: Pg92 #13, 15, 16-21 evens ; 22-27 • Go over SGI pg 81 • HW: SGI Practice 2.5 pg 82; Read Section 2.6 Take Notes • Get Syllabus (signed portion due Friday) • Mini Quiz after finishing Section 2.3 • Mon. 44 Tutoring Harton/ Calculator Purchase/No sharing

  7. Geometry Date: 9/15/2011 Section 2.6 ID Check • Objective: Write 2 column proofs using properties of equality. • Bell Ringer: In a survey (from the early 90’s) 26 people liked • M. C. Hammer, 5 liked Vanilla Ice, 2 liked both, and 15 liked • neither. How many people were surveyed? • What is the universal set? • HW Requests: Section 2.5 pg 82 Worksheet • HW:pg 97 #15- 30 every 3 add #25, 31 • Get Syllabus (signed portion due Friday) • Mini Quiz after finishing Section 2.3 • Mon. 44 Tutoring Harton/ Calculator Purchase/No sharing

  8. Geometry Date: 9/16/2011 Section 2.6 ID Check • Objective: Write 2 column proofs using properties of equality. • Bell Ringer: Mini Quiz Section 2.3 (10 minutes) • HW Requests: pg97 #15- 30 every 3 add #25, 31 • Go over 29 explaining substitution or not • HW: Read Section 2.7 Take Notes • Money for Calculators is Due Monday 9/19 • Mon. Tutoring Harton/ Calculator Purchase/No sharing

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