This study critically investigates the basic features of the conception of rationality found in the writings of critical thinking theorists and in so doing finds some significant conceptual elements of rationality in the idea of critical thinking that may help extend our views of rationality as an educational concept. The study will primarily be focused, firstly, on the conceptual connections between the ideas of rationality and critical thinking and, secondly, on Harvey Siegel`s universalist notion of rationality as the criterion of critical thinking.
II. Being Critical and Being Rational
III. Rationality of Critical Thinking as Universal Standard
IV. Concluding Remarks