Fallacies D1 W/at Bat

Unit 8

Critical Thinking
Fallacies of Logic

Day 1

6

Image from Adobe Stock

How do you think businesses like a local bakery or a
neighborhood store could balance staying true to their traditional
practices that customers love while also adapting to new
technologies? (Bonus - use the innovation vocabulary words)

Do Now

Image from Adobe Stock

Open Ended

Do Now: Quick Response MRSHow do you think businesses like a local bakery or a
neighborhood store could balance staying true to their traditional
practices that customers love while also adapting to new
technologies? (Bonus - use the innovation vocabulary words)

7

Learning Objective:
The SWBAT identify generalization, ad hominem,
and false equivalence fallacies.

DOL:
Given several scenarios, the SW identify generalization, ad
hominem, and false equivalence fallacies 4 out of 5 times to
show mastery.

Learning Objective & DOL

8

Make an anchor chart on paper using markers:
Open google and research definitions and examples of:
1. Generalization fallacies and illustrate an example.
2. Ad hominem fallacies and and illustrate and example.
3. False equivalence fallacies and illustrate and example.
Students will work in their groups to come up with an
example of the 3 types of logical fallacies presented in the
lesson.

Open Ended

Write this definition of Logical Fallacy

A logical fallacy is an argument that may sound convincing or true, but it is flawed because the claim cannot be proven as true or false.
It is subjective.

10

At bat questions

Alogical fallacyis an argument that may sound convincing or

true, but it is actually flawed.

Question:
A fallacy of logic is an ______ that may sound convincing or true,
but it is actually flawed.

Open Ended

AT Bat Question Quick Response MRS.

A logical fallacy is an argument that may sound convincing or true, but it is actually flawed.

Question: 

A fallacy of logic is an ______ that may sound convincing or true, but it is actually flawed.

11

Generalization Fallacy, often referred to as a Hasty Generalization,
occurs when someone makes a broad statement or conclusion based on
a small or unrepresentative sample.

Example: I saw a basketball player sneeze.

Therefore all basketball players have allergies.

Images from Adobe Stock

Open Ended

Write the Definition of Generation Fallacy

Generalization Fallacy, often referred to as a Hasty Generalization, occurs when someone makes a broad statement or conclusion based on a small or unrepresentative sample. For example, It’s like saying, “My friend eats sweet food and is healthy, so sweet food is healthy for everyone.”

12

I had a Toyota Camry two years ago and the car

was horrible. It broke down three times in
one month. Toyotas are not reliable cars.

How is this an example of a generalization fallacy?

Image from Adobe Stock

Open Ended

Why is this an example of a Hasty Generalization Fallacy?

I had a Toyota Camry two years ago and the car was horrible. It broke down three times in one month. Toyotas are not reliable cars.

Ex: The sample size is __________________

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https://www.youtube.com/watch?v=BrISNrKCu9A

When you take a small amount of evidence and
jump to a __________ it is an example of a
generalization fallacy.

conclusion

14

Ad Hominem (“at the man”) Fallacy: instead of
addressing someone's argument or position, you
attack the person or some aspect of the person
who is making the argument.

Image from Adobe Stock

Open Ended

Write the definition of:

Ad Hominem (“at the man”) Fallacy: instead of addressing someone's argument or position, you attack the person or some aspect of the person who is making the argument.

16

How is video examples of Ad Hominem
fallacy?

Open Ended

How is video examples of Ad Hominem fallacy?

17

At Bat Questions:
Person 1: I think we should have longer PE classes at school.
Person 2: Well, you're not even good at sports, so why should we
listen to you?

Q: Which of the following fallacies is represented in the scenario?
Answer
A:Generalization fallacy or B. Ad Hominem fallacy

Is this an example of an ad hominem fallacy?

Multiple Choice

At Bat Questions: 

Person 1: I think we should have longer PE classes at school.

Person 2: Well, you're not even good at sports, so why should we listen to you?

Q: Which of the following fallacies is represented in the scenario?

• Generalization fallacy

• Ad Hominem fallacy

Open Ended

Write this definition

The False Equivalence Fallacy is a type of logical error where two things are incorrectly considered equivalent because they share some characteristics, despite significant differences that would make the comparison invalid. Compair: Apples to Oranges

19

At Bat Questions
Eating a cookie is just as healthy as eating a salad. They both
contain calories, so there's no real difference between the two.

Which of the following fallacies is represented in the scenario?

A. Generalization fallacy
B. Ad Hominem fallacy
C. False equivalence fallacy

https://www.youtube.com/watch?v=oFC-0FR2hko&t=1s

20

Bryce and Yasmin are discussing their

thoughts about exercise.

How is this an example of a false equivalence fallacy?

Bryce: Regular exercise is important
for maintaining good health

Yasmin: Well, my cat doesn’t
exercise, and it seems perfectly
healthy. So exercising is overrated.

Multiple Choice

At Bat Questions: Which of the following fallacies is represented in the scenario?

Eating a cookie is just as healthy as eating a salad. They both contain calories, so there's no real difference between the two. 

• 1. Generalization fallacy

• 1. Ad Hominem fallacy

• 1. False equivalence fallacy

21

At Bat Question:
What is the purpose of understanding fallacies of logic?

Understanding fallacies helps you critically think evaluate and statements.
Avoiding generalization fallacies promotes fair and accurate assessments
of different situations, preventing the unfair categorization of groups or
ideas. Recognizing ad hominem fallacies encourages people to focus on
the substance of an argument rather than attacking the person making it.
Additionally, being aware of false equivalence fallacies helps individuals
distinguish between valid and invalid comparisons, leading to more
informed discussions.

22

Given several scenarios,
the SW identify
generalization, ad
hominem, and false
equivalence fallacies 4
out of 5 times to show
mastery.

Demonstration of Learning