U NIT 3: L OGIC (G.1 A, B ) W ARM - UP : C HECKPOINT G.2 G RADED SOL QUESTIONS H OMEWORK : ( DAY 17) P. 92 (1-3, 7, 9, 11, 20-26, 41) P. 101 (9, 11, 35,

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Presentation transcript:

U NIT 3: L OGIC (G.1 A, B ) W ARM - UP : C HECKPOINT G.2 G RADED SOL QUESTIONS H OMEWORK : ( DAY 17) P. 92 (1-3, 7, 9, 11, 20-26, 41) P. 101 (9, 11, 35, 37) C HECK A NSWERS ( ODD IN TEXT, E VEN O N P OWER POINT S LIDE P EARSON S UCCESS DUE F RIDAY Obj: SWBAT identify Logic statements: Conditional, Converse, Inverse & Contrapositive (2.2/2.3) **hw/hw log/storybook: “Logic”/glue stick or tape

Copy this into your SOL binder (day 17)

W E ARE NOW B EGINNING U NIT 3: L OGIC Please organize your notebook so it is in consecutive order! Unit 1: lessons 1-10 Unit 2: lessons Unit 3: lessons

Then Write your own Hypothesis & on back: Negate the hypothesis Write your own Conclusion & on back : Negate the conclusion If

C OMPOUND S TATEMENT A compound statement is two or more statements that are joined together. Example: p: Richmond is a city in Virginia. q: Richmond is the capital of Virginia. p and q: Richmond is a city in Virginia and Richmond is the capital of Virginia.

Conjecture is an educated guess that can be either true or false. A Statement is a sentence that is either true or false but not both. Often represented by a letter such as p, q or r. The Truth value is the truth or falsity of a statement.

A conjunction- a compound statement using the word “AND” symbolically: read ”p and q” ***A conjunction is true IFF both statements are true.* A disjunction - a compound statement using the word “or”. Symbolically: “read” p or q ***A disjunction is true if at least one of the statements are true.*

N EGATIONS The negation of a statement says it has the opposite meaning. So the negation would be ~p read “not p” ~q read “not q” Example: p: Suffolk is a city in Virginia. ~p: Suffolk is not a city in Virginia.

T EACHER ’ S N OTES : If time- have students form groups of four. One person write a sentence (not in the conditional form. The group write the same sentence in the conditional form. Then clockwise the next student write the converse, inverse and contrapositive (use as a class grade).