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1.1 What is Critical Thinking?

Mind. Brain. Mindset” by John Hain. Pixabay License

Critical thinking is the ability to think clearly and rationally about what to do or what to believe. It includes the ability to engage in reflective and independent thinking. Someone with critical thinking skills is able to do the following:

  • Understand the logical connections between ideas.
  • Identify, construct, and evaluate arguments.
  • Detect inconsistencies and common mistakes in reasoning.
  • Solve problems systematically.
  • Identify the relevance and importance of ideas.
  • Reflect on the justification of one’s own beliefs and values.

Critical thinking is not simply a matter of accumulating information. A person with a good memory and who knows a lot of facts is not necessarily good at critical thinking. Critical thinkers are able to deduce consequences from what they know, make use of information to solve problems, and seek relevant sources of information to inform themselves.

The Importance of Critical Thinking

Critical thinking should not be confused with being argumentative or being critical of other people. Although critical thinking skills can be used in exposing fallacies and bad reasoning, critical thinking can also play an important role in cooperative reasoning and constructive tasks. Critical thinking can help us acquire knowledge, improve our theories, and strengthen arguments. We can also use critical thinking to enhance work processes and improve social institutions.

Consider some of the following additional benefits of possessing solid critical thinking skills:

Critical thinking is a domain-general thinking skill.
Critical thinking is important in the new knowledge economy. 
Critical thinking enhances language and presentation skills.
Critical thinking promotes creativity.
Critical thinking is crucial for self-reflection.
Good critical thinking is the foundation of science and democracy.
Critical thinking is a metacognitive skill.

Improving Our Thinking Skills

Theory

If we want to think correctly, we need to follow the correct rules of reasoning. Knowledge of theory includes knowledge of these rules. These are the basic principles of critical thinking, such as the laws of logic, and the methods of scientific reasoning, etc.

Also, it would be useful to know something about what not to do if we want to reason correctly. This means we should have some basic knowledge of the mistakes that people make. First, this requires some knowledge of typical fallacies. Second, psychologists have discovered persistent biases and limitations in human reasoning. An awareness of these empirical findings will alert us to potential problems.

Practice

However, merely knowing the principles that distinguish good and bad reasoning is not enough. We might study in the classroom about how to swim, and learn about the basic theory, such as the fact that one should not breathe underwater. But unless we can apply such theoretical knowledge through constant practice, we might not actually be able to swim.

Similarly, to be good at critical thinking skills, it is necessary to internalize the theoretical principles so that we can actually apply them in daily life. There are at least two ways to do this. One is to perform lots of quality exercises. These exercises don’t just include practicing in the classroom or receiving tutorials; they also include engaging in discussions and debates with other people in our daily lives, where the principles of critical thinking can be applied. The second method is to think more deeply about the principles that we have acquired. In the human mind, memory and understanding are acquired through making connections between ideas.

Attitudes

Good critical thinking skills require more than just knowledge and practice. Persistent practice can bring about improvements only if one has the right kind of motivation and attitude. The following attitudes are not uncommon, but they are obstacles to critical thinking:

  • I prefer being given the correct answers rather than figuring them out myself.
  • I don’t like to think a lot about my decisions as I rely only on gut feelings.
  • I don’t usually review the mistakes I have made.
  • I don’t like to be criticized.

To improve our thinking, we have to recognize the importance of reflecting on the reasons for belief and action. We should also be willing to engage in debate, break old habits, and deal with linguistic complexities and abstract concepts.

Critical thinking is concerned not with what you believe, but rather how or why you believe it. Most classes, such as those on biology or chemistry, teach you what to believe about a subject matter. In contrast, critical thinking is not particularly interested in what the world is, in fact, like. Rather, critical thinking will teach you how to form beliefs and how to think. It is interested in the type of reasoning you use when you form your beliefs, and it concerns itself with whether you have good reasons to believe what you believe.

Let’s Watch

 

What is Critical Thinking (and Why Should I Care)?

Video: “What is Critical Thinking (and Why Should I Care)?” by Sage Students [4:10] is licensed under the Standard YouTube License.Transcript and closed captions available on YouTube.

As writers, it is essential to understand the role of critical thinking—not only for success in college, but also as a foundation for effective communication in future careers. Critical thinking equips you to analyze ideas, evaluate evidence, and construct well-reasoned arguments. With a basic understanding of its purpose, we can now turn our attention to the formal structures of argumentation that can strengthen your writing. A key starting point is recognizing how logic functions in the critical assessment of ideas, helping you build arguments that are clear, coherent, and persuasive.


1. Introduction to Critical Thinking” in Critical Thinking Copyright © 2019 by Brian Kim is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted. Modifications: removed the last paragraph in the “Attitudes” section; Removed “Defining Critical Thinking” and “Two Features of Critical Thinking” sections; Added video and last paragraph.

License

Icon for the Creative Commons Attribution 4.0 International License

1.1 What is Critical Thinking? Copyright © 2025 by Germán Gutiérrez-Sanin is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.