Critical thinking is a rational and intentional cognitive skill oriented to take adecision or solve a problem. We use critical thinking skills in any area of our lives – professional, as citizen, love or friendship. Its key characteristics are rationality, reflection and evaluation (Tenreiro‐Vieira and Vieira, 2000, p. 29). Critical thinking is clear and rational, involves precise and systematic skills and follows the rules of logical and scientific reasoning (Lau, 2011, p. 1).
It is a set of skills and attitudes that result in the evaluation of the reasoning of a speaker or writer, using specific generally accepted criteria for strong reasoning. For example, that a conclusion should have a reason in the first place is a standard that requires explicit attention.
Multiple strategies could advance the learning of critical thinking. I prefer to teach CT by emphasizing the asking of questions because that approach seems optimal to me in terms of acknowledging and activating curiosity, while emphasizing the worth of ongoing wonder. But others might opt for a more didactic approach.
A Definition
Critical thinking is that mode of thinking - about any subject, content, or problem - in which the thinker improves the quality of his or her thinking by skillfully taking charge of the structures inherent in thinking and Imposing intellectual standards upon them.
John Dewey defined critical thinking as "reflective thought"-to suspend judgment, maintain a healthy skepticism, and exercise an open mind. These three activities called for the active, persistent, and careful consideration of any belief in light of the ground that supports it. Dewey's definition suggests that critical thinking has both an intellectual and an emotional component. Thus we view critical thinking as the intellectual and emotional ability to go beyond the known without "falling to pieces". Students must be taught to examine, poke, question, and reflect on what they have