TODAY’S TONGUE TWISTER!~ Four furious friends fought for the phone.

Sherlock Holmes

LOGIC

Reasoning Logic Deductive Abductive Inductive

Reasoning Logic Deductive Abductive Inductive

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Reasoning Logic Deductive Abductive Inductive

DEDUCTION  The process of reasoning from general statements (premises) to reach a logically certain conclusion.

DEDUCTION i.All men are mortals. ii.Socrates is a man. // Socrates is mortal.

DEDUCTION i.All squares are rectangles. ii.Rectangles have four sides. // All squares have four sides.

Reasoning Logic Deductive Abductive Inductive

INDUCTION  The process of reasoning from evidence to a logically probable conclusion.

INDUCTION i.We’ve only seen black dogs today. // The next dog we see will be black. i.3,6,9,12,15… // The next number will be 18

INDUCTION VS. DEDUCTION What is so different between the two?  Inductive reasoning: …tries to conclude with probability. …generally takes a bottom-up approach. …takes evidence and seeks a theory to explain the observations.  Deductive reasoning: …tries to conclude with necessity. …generally takes a top-down approach. …takes conclusions and seeks evidence to support the conclusion. ? S

RIDDLES  I will create 2 teams.  Use the clues to solve the riddle.  If a member of your team solves the riddle, your team gets 5 points.

RULES  Raise your hand when you have a guess.  Your team does not lose points for incorrect guesses.  If your team breaks a class rule, you forfeit (lose) 5 points.

1 ST RIDDLE 1.I am not a bird, but I can fly. 2.I can fly even though I am blind. 3.I am not deaf and I am dark-skinned. 4.I sleep upside down.

YOU’RE PROBABLY ……. BBBBBBBBB Bat

2 ND RIDDLE 1. I’m yellow and round. 2. I’m built to bounce. 3. I’m furry like a peach, and you can serve me. 4. You hit me with a racquet.

YOU’RE PROBABLY……. Tennis Ball

3 RD RIDDLE 1.I’m found in Africa. 2.I’m striped. 3.I have the first and last letters of the alphabet in my name. 4.I forage for food.

YOU’RE PROBABLY……. Tennis Ba Zebra

4 TH RIDDLE 1.I’m in every classroom. 2.I’m hard, but not unbreakable. 3.Sometimes I’m empty, sometimes I’m full. 4.I have legs, but I’m not a person.

YOU’RE PROBABLY……… Desk

5 TH RIDDLE 1.I’m the world’s sixth largest country by area. 2.My government is a constitutional monarchy. 3.The Great Barrier Reef is close to my north east coast. 4.My name starts and ends with the same letter.

YOU’RE PROBABLY ………

6 TH RIDDLE 1.Sometimes I’m flat and sometimes I’m round. 2.I can be many colors. 3.Sometimes I squeal and sometimes I pop. 4.I can fly but I’m not a bird.

YOU’RE PROBABLY ……… Balloon

REMEMBER… DEDUCTION i.All men are mortals. ii.Socrates is a man. // Socrates is mortal.

DEDUCTION  Find the necessary conclusion.  For this quiz, use “Must be” or “Must not be”

REMEMBER… DEDUCTION i.All men are mortals. ii.Socrates is a man. // Socrates must be mortal.

DEDUCTIVE REASONING 1.Robert is studying to be a doctor. 2.All doctors go to medical school. //…

ROBERT MUST BE STUDYING IN MEDICAL SCHOOL.

DEDUCTIVE REASONING 1.The cloud is white. 2.White things are not red. //…

THE CLOUD MUST NOT BE RED.

DEDUCTIVE REASONING 1.Every day, Bill leaves for work at 7:30. 2.It takes him 30 minutes to get to work. 3.On Mondays, it takes 10 minutes longer than usual. 4.Every Wednesday Bill is late for work. 5.Today is Wednesday. //…

BILL MUST BE LATE FOR WORK.

DEDUCTIVE REASONING 1.Every Saturday afternoon, I go see a movie. 2.I only watch dramas on weekends. 3.Today I saw an action movie. //…

TODAY MUST NOT BE THE WEEKEND.

 Induction The process of reasoning from evidence to a logically probable conclusion.  Deduction The process of reasoning from general statements (premises) to reach a logically certain conclusion.

-- Albert Einstein