
Fallacies of Logic
Presentation
•
English
•
7th Grade
•
Medium
+6
Standards-aligned
Michael Regalado
Used 11+ times
FREE Resource
11 Slides • 20 Questions
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Fallacies of Logic
By Michael Regalado
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How would you like to win every argument?
Learning how to construct and deconstruct and arguments will help you to gain the advantage in argument and debate.
What are fallacies of logic?
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The next slide is linked to a website that explains the most commonly used, or misused, fallacies of logic.
Take about ten minutes to read the definitions of each fallacy, and discuss in your table groups.
Next, we will practice identifying them, and look at some examples.
Fallacies of Logic
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Practice identifying common fallacies.
You can help each other, but the timer is on.
Fallacies of Logic
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Multiple Choice
You misrepresented someone's argument to make it easier to attack.
ad hominem
slippery slope
bandwagon
false cause
strawman
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Multiple Choice
You said that if we allow A to happen, then Z will eventually happen too, therefore A should not happen.
ad hominem
slippery slope
bandwagon
false cause
strawman
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Multiple Choice
You attacked your opponent's character or personal traits in an attempt to undermine their argument.
ad hominem
slippery slope
bandwagon
false cause
strawman
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Multiple Choice
You appealed to popularity or the fact that many people do something as an attempted form of validation.
ad hominem
slippery slope
bandwagon
false cause
strawman
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Multiple Choice
You presumed that a real or perceived relationship between things means that one is the cause of the other.
ad hominem
slippery slope
bandwagon
false cause
strawman
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Multiple Choice
You presented two alternative states as the only possibilities, when in fact more possibilities exist.
black or white
anecdotal
tu quoque
personal incredulity
composition/ division
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Multiple Choice
You assumed that one part of something has to be applied to all, or other, parts of it; or that the whole must apply to its parts.
black or white
anecdotal
tu quoque
personal incredulity
composition/ division
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Multiple Choice
You avoided having to engage with criticism by turning it back on the accuser - you answered criticism with criticism.
black or white
anecdotal
tu quoque
personal incredulity
composition/ division
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Multiple Choice
You used a personal experience or an isolated example instead of a sound argument or compelling evidence.
black or white
anecdotal
tu quoque
personal incredulity
composition/ division
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Multiple Choice
Because you found something difficult to understand, or are unaware of how it works, you made out like it's probably not true.
black or white
anecdotal
tu quoque
personal incredulity
composition/ division
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Multiple Choice
You asked a question that had a presumption built into it so that it couldn't be answered without appearing guilty.
loaded question
Texas sharpshooter
no true Scotsman
burden of proof
ambiguity
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Multiple Choice
You said that the burden of proof lies not with the person making the claim, but with someone else to disprove.
loaded question
Texas sharpshooter
no true Scotsman
burden of proof
ambiguity
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Multiple Choice
You cherry-picked a data cluster to suit your argument, or found a pattern to fit a presumption.
loaded question
Texas sharpshooter
no true Scotsman
burden of proof
ambiguity
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Multiple Choice
You made what could be called an appeal to purity as a way to dismiss relevant criticisms or flaws of your argument.
loaded question
Texas sharpshooter
no true Scotsman
burden of proof
ambiguity
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Multiple Choice
You used a double meaning or ambiguity of language to mislead or misrepresent the truth.
loaded question
Texas sharpshooter
no true Scotsman
burden of proof
ambiguity
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Lets look at some examples.
You can help each other, but the timer is on.
Fallacies of Logic
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Multiple Choice
When the judge asked the defendant why he hadn't paid his parking fines, he said that he shouldn't have to pay them because the sign said 'Fine for parking here' and so he naturally presumed that it would be fine to park there.
strawman
slippery slope
ambiguity
ad hominem
anecdotal
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Multiple Choice
After Sally presents an eloquent and compelling case for a more equitable taxation system, Sam asks the audience whether we should believe anything from a woman who isn't married, was once arrested, and smells a bit weird.
strawman
slippery slope
ambiguity
ad hominem
anecdotal
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Multiple Choice
Jason said that that was all cool and everything, but his grandfather smoked, like, 30 cigarettes a day and lived until 97 - so don't believe everything you read about meta analyses of methodologically sound studies showing proven causal relationships.
strawman
slippery slope
ambiguity
ad hominem
anecdotal
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Multiple Choice
After Will said that we should put more money into health and education, Warren responded by saying that he was surprised that Will hates our country so much that he wants to leave it defenseless by cutting military spending.
strawman
slippery slope
ambiguity
ad hominem
anecdotal
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Multiple Choice
If you allow the students to redo this test, they are going to want to redo every assignment for the rest of the year.
strawman
slippery slope
ambiguity
ad hominem
anecdotal
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Fallacy Assignment
Your Task:
Spin the wheel to determine your assigned fallacy. Work with a partner to complete a slide explaining the fallacy.
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Fallacies of Logic
By Michael Regalado
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