English Language Arts
Grade 6
15 min
Classify logical fallacies
Classify logical fallacies
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Introduction & Learning Objectives
Learning Objectives
Define what a logical fallacy is in their own words.
Identify common logical fallacies (e.g., Hasty Generalization, Ad Hominem, Red Herring) in short texts.
Explain how a logical fallacy weakens an argument's claim.
Distinguish between a strong claim supported by relevant evidence and a weak claim based on a fallacy.
Classify examples as specific types of logical fallacies.
Evaluate the use of evidence in arguments to detect potential fallacies.
Understand how an author's purpose might involve using or avoiding logical fallacies.
Ever heard someone make an argument that just didn't sound quite right, even if you couldn't explain why? 🤔 Let's learn how to spot those tricky arguments!
In this lesson, you'll discover what lo...
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Key Concepts & Vocabulary
TermDefinitionExample
Logical FallacyA flaw or error in reasoning that makes an argument unsound or invalid, even if it sounds convincing at first.Saying 'Everyone loves pizza, so you should too!' is a fallacy because not everyone loves pizza, and it doesn't mean you have to.
ArgumentA statement or set of statements that includes a main point (claim) and reasons or evidence to support it.'The school day should be shorter because studies show shorter days improve student focus and learning.'
ClaimThe main point, idea, or assertion an author is trying to prove or convince you of.'Eating vegetables every day makes you healthier.'
EvidenceFacts, examples, statistics, or expert opinions used to support a claim and make it believable.'According to the USD...
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Key Rules & Conventions
Focus on the Connection Rule
When evaluating an argument, always focus on the logical connection between the claim and the evidence, not just the claim itself.
A strong argument has evidence that directly and logically supports the claim. If the evidence is weak, irrelevant, or attacks the person, it's likely a fallacy. Ask: 'Does this evidence truly prove this claim?'
The 'Enough and Relevant' Evidence Rule
Before accepting a claim, ask yourself: 'Is there enough evidence?' and 'Is the evidence relevant to the claim?'
Too little evidence (like one example for a big claim) or evidence that changes the subject (irrelevant) are clear signs of potential fallacies like Hasty Generalization or Red Herring.
The 'Person vs. Idea...
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Challenging
Read the paragraph: 'Our school needs to ban cell phones. They are a huge distraction in class. Also, my friend Leo, who is always on his phone, got a bad grade on his report card. Furthermore, the cost of data plans is getting very expensive for parents.' Which part of this argument contains a logical fallacy?
A.The claim that cell phones are a huge distraction in class.
B.The evidence about Leo getting a bad grade.
C.The statement about the cost of data plans.
D.The main claim that the school needs to ban cell phones.
Challenging
In a debate, Maria says, 'Your argument for longer school days is invalid because you're always late to class.' Tom replies, 'Being late has nothing to do with my research. Let's look at the study that shows longer days improve test scores.' Which student is using a strong, logical argument instead of a fallacy?
A.Tom, because he correctly identifies Maria's Ad Hominem and refocuses on the evidence.
B.Maria, because she points out a flaw in Tom's character that is relevant.
C.Both are using fallacies because they are arguing with each other.
D.Neither is using a strong argument; Tom is using a Red Herring by bringing up a study.
Challenging
A city council is debating whether to build a new skatepark. A citizen makes a strong claim that the park would reduce teen crime by giving kids a safe place to go. Which of the following responses from a council member would be a Red Herring fallacy?
A.'Can you provide statistics from other cities that show a link between skateparks and lower crime?'
B.'I disagree. A report from our police chief suggests it would attract troublemakers.'
C.'That's an interesting point, but your kids are grown up, so you don't really have a stake in this.'
D.'A skatepark is a fine idea, but shouldn't we be more concerned about the terrible condition of our city's roads?'
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