Logical Fallacies

What is a logical fallacy?

• A flaw in reasoning that makes an argument invalid
• A scientific theory
• A reasonable argument

• A type of mathematical equation

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CCSS.L.11-12.6

CCSS.L.8.6

CCSS.L.9-10.6

CCSS.W.11-12.2D

CCSS.W.9-10.2D

If I don’t take this AP class, then I won’t do well on the exam. If I don’t do well on the AP exam, then I can’t get into a good college. If I can’t get into a good college, then I’ll never get a good job. If I can’t get a good job, then I’m going to have to live in my parents’ basement forever. Guess I’ll sign up for the AP class.

• Hasty Generalization

• Slippery Slope

• Strawman Argument

• Fear

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CCSS.RI. 9-10.8

CCSS.RI.11-12.5

CCSS.RI.11-12.8

CCSS.RI.8.5

CCSS.RI.9-10.5

"The two courses I took at OSU were not very interesting. I don't think its a good university."

• Hasty Generalization

• Strawman

• Bandwagon

• Logos

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CCSS.RI.8.1

CCSS.RI.8.8

CCSS.RL.11-12.1

CCSS.RL.8.1

CCSS.RL.9-10.1

I am voting for Smith for President because the rest of my family is voting for him. 

• Appeal to Authority

• Bandwagon

• Logos

• Strawman

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CCSS.RI. 9-10.8

CCSS.RI.11-12.5

CCSS.RI.11-12.8

CCSS.RI.8.8

CCSS.RI.9-10.5

Which logical fallacy attacks the character of a person instead of arguing against their ideas?

• Ad-hominem

• Red Herring

• Slippery Slope

• Strawman

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CCSS.RI. 9-10.8

CCSS.RI.11-12.5

CCSS.RI.11-12.8

CCSS.RI.8.8

CCSS.RI.9-10.5

"You think we should invest more in education? You must be suggesting that we throw unlimited funds at schools without accountability."

• Ethos

• Red Herring

• Strawman

• Bandwagon

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CCSS.RI.8.1

CCSS.RI.8.8

CCSS.RL.11-12.1

CCSS.RL.8.1

CCSS.RL.9-10.1

A logical fallacy used to divert attention away from the original argument and change the subject.

• Green herring

• Red herring

• Strawman

• Bandwagon

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CCSS.RI. 9-10.8

CCSS.RI.11-12.5

CCSS.RI.11-12.8

CCSS.RI.8.5

CCSS.RI.9-10.5

I guess I should buy my 12-year-old daughter an iPhone. Everyone at her new school has one, and I want her to fit in with the other kids.

• Bandwagon

• Logos

• Ethos

• Conformity

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CCSS.RI.11-12.5

CCSS.RI.9-10.5

I was driving in New York and another car cut in front of me. I now believe that everyone in New York is bad at driving.

• Hasty Generalization

• Red Herring

• Bandwagon

• Ethos

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CCSS.RI.8.1

CCSS.RI.8.8

CCSS.RL.11-12.1

CCSS.RL.8.1

CCSS.RL.9-10.1

A tennis player won two games in a row and happened to drink coffee before both games. From then on, he makes sure to drink coffee before games because it seems to cause him to win.

• Ethos

• Logos

• Post-Hoc

• Red Herring

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CCSS.RI.8.1

CCSS.RI.8.8

CCSS.RL.11-12.1

CCSS.RL.8.1

CCSS.RL.9-10.1