How Flawed Arguments Can Go Right
To understand this post better, it may be helpful to first read How Arguments Can Go Wrong.
Let’s go over some scenarios in which a flawed argument can have a true conclusion.
1. One or more premises are incorrect:
All fruits are yellow.
Bananas are fruits.
Therefore, bananas are yellow.
The first premise is incorrect, but the conclusion is still true.
2. The logic is flawed:
Baby poodles drink milk.
Puppies drink milk.
Therefore, baby poodles are puppies.
This argument is logically invalid, but the conclusion is still true.
3. The premises are untrue and the logic is flawed:
Earth is flat.
All planets are flat.
Therefore, Earth is a planet.
Here, both premises are incorrect and the logic is flawed, and yet the conclusion is true!
The Fallacy Fallacy
You commit the fallacy fallacy when you assume that a conclusion is wrong just because it has not been argued well. As I demonstrated above, it is possible for a flawed argument to have a true conclusion. When debating with someone, keep in mind that they might be right even if their logic is wrong.
If you’d like your kids to learn more about logical fallacies, check out my course Fallacy Detectors.
Courses
Fallacy Detectors
Develop the skills to tackle logical fallacies through a series of 10 science-fiction videos with activities. Recommended for ages 8 and up.
A Statistical Odyssey
Learn about common mistakes in data analysis with an interactive space adventure. Recommended for ages 12 and up.
Logic for Teens
Learn how to make sense of complicated arguments with 14 video lessons and activities. Recommended for ages 13 and up.
Emotional Intelligence
Learn to recognize, understand, and manage your emotions. Designed by child psychologist Ronald Crouch, Ph.D. Recommended for ages 5 and up.
Worksheets
Logical Fallacies Worksheets and Lesson Plans
Teach your grades 3-7 students about ten common logical fallacies with these engaging and easy-to-use lesson plans and worksheets.
Symbolic Logic Worksheets
Worksheets covering the basics of symbolic logic for children ages 12 and up.
Elementary School Worksheets and Lesson Plans
These lesson plans and worksheets teach students in grades 2-5 about superstitions, different perspectives, facts and opinions, the false dilemma fallacy, and probability.
Middle School Worksheets and Lesson Plans
These lesson plans and worksheets teach students in grades 5-8 about false memories, confirmation bias, Occam's razor, the strawman fallacy, and pareidolia.
High School Worksheets and Lesson Plans
These lesson plans and worksheets teach students in grades 8-12 about critical thinking, the appeal to nature fallacy, correlation versus causation, the placebo effect, and weasel words.
Statistical Shenanigans Worksheets and Lesson Plans
These lesson plans and worksheets teach students in grades 9 and up the statistical principles they need to analyze data rationally.