Education is the most important and preliminary foundation of growth and development and its result is the change of educational systems to learning organizations. All experts accept the role of educational systems in the development of countries. Thinking and learning new information, contemplation style, and learning are prominent characteristics of human beings. So thinking is the most dominant factor in any education system. The development of educational systems is one of the most important criteria in modern societies. This issue has become a vital problem in different countries, and in recent decades it has become a very important problem in developing countries. On the other hand, attention to thinking in teaching and learning process is the most dominant feature of new approaches. Thinking has been defined differently by different authors. What is common in all approaches is the fact that thinking provides the foundation for inventions and finally it leads to human growth and development. In this article, the researcher has studied the critical feature of thinking in details.