English Language Arts
Grade 8
15 min
Classify logical fallacies
Classify logical fallacies
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1
Introduction & Learning Objectives
Learning Objectives
Identify common logical fallacies in various texts.
Apply rules for hyphenating compound adjectives and nouns.
Use correct hyphenation when naming or describing logical fallacies.
Analyze arguments for logical flaws, paying attention to how hyphenated terms contribute to meaning.
Construct clear and precise analyses of arguments, employing correct hyphenation to describe identified fallacies.
Distinguish between correctly and incorrectly hyphenated terms related to the classification of fallacies.
Ever noticed how a tiny dash can change the meaning of a sentence? 🧐 Today, we'll discover how hyphens are crucial for precision when we're trying to spot tricky logical fallacies!
In this lesson, you'll learn to identify common errors in reason...
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Key Concepts & Vocabulary
TermDefinitionExample
Logical FallacyAn error in reasoning that makes an argument unsound or invalid, even if it appears convincing. Fallacies weaken an argument's logic.Believing a claim is true just because many people believe it is an 'appeal-to-popularity' fallacy.
HyphenA punctuation mark (-) used to join words or parts of words to create compound terms, indicate word breaks, or avoid ambiguity.The phrase 'a well-known fallacy' uses a hyphen to join 'well' and 'known' into a single adjective.
Compound AdjectiveTwo or more words that function as a single adjective before a noun, often joined by a hyphen to clarify their combined meaning.In 'He presented a poorly-constructed argument,' 'poorly-constructed' is a hyphenated...
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Key Rules & Conventions
Hyphenating Compound Adjectives Before Nouns
When two or more words act as a single adjective modifying a noun that follows, use a hyphen to connect them.
This rule is crucial for precisely describing the *type* of fallacy or the *nature* of a flawed argument. For instance, 'a poorly-reasoned claim' or 'a red-herring tactic' clearly link the descriptive words.
Hyphenating Specific Fallacy-Related Terms
Certain terms commonly associated with logical fallacies are hyphenated when used as compound adjectives to ensure precise terminology.
This applies to terms like 'straw-man' when it precedes a noun (e.g., 'straw-man argument') or 'ad-hominem' when it describes an attack (e.g., 'ad-hominem attack'). The hyphen signals...
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Challenging
A political ad claims a candidate 'voted against a common-sense bill to protect our children.' The bill was actually a complex 500-page document. The phrase 'common-sense' is used here as a rhetorical device that functions as a type of fallacy. Which option provides the most precise, grammatically correct analysis of this device?
A.The ad uses a 'common sense' appeal, which is a logically-flawed argument because it oversimplifies the issue.
B.The ad uses a 'common-sense' appeal, a thought-terminating cliché designed to prevent critical examination of the bill.
C.The ad uses a 'common sense' appeal, which is a type of red herring to distract from the bill's actual-content.
D.The ad uses a 'common-sense' appeal, which is an ad hominem attack against anyone who disagrees.
Challenging
A student's analysis contains this sentence: 'The author's argument is a house of cards-fallacy, built on a single, easily-disproven fact.' Evaluate the student's use of hyphens.
A.Both 'house of cards-fallacy' and 'easily-disproven' are correctly hyphenated.
B.The term 'house of cards-fallacy' is incorrectly hyphenated; it should be 'house-of-cards fallacy'. The term 'easily-disproven' is also incorrect.
C.The term 'house of cards-fallacy' is correct, but 'easily-disproven' should be 'easily disproven'.
D.The term 'house of cards-fallacy' is incorrectly hyphenated; it should be 'house-of-cards fallacy'. The term 'easily disproven' is correct because of the '-ly' adverb rule.
Challenging
An argument is criticized for being an 'appeal to emotion'. To make this critique more formal and precise for an analytical essay, which of the following revisions is the strongest, applying the principles from the tutorial?
A.The speaker makes an emotion based appeal.
B.The speaker makes an emotion-based appeal.
C.The speaker's appeal is based-on-emotion.
D.The speaker makes an emotionally-driven appeal.
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