Apart from a long glass table, six wooden chairs, blackboard, Vygotsky and our function, the room is naked, but people are almost unaware of this fact. On the contrary, the first thing an outsider has noticed is the energy of the room created by the dynamics of the six women sitting around the table. When they share ideas and desperately draw charts on the board, the problems they are attacking are simplified many times until they are resolved. Behind the comments of Pat and "good work!" All women think this problem is impossible when she is alone, but now in this group the solution comes very fast.
Vigotsky's cognitive development theory, Vygotsky's role exchange theory, supports the notion that social development and personal development arise from the process of dialectical interaction and functional unity. Lev Vygotsky believes that speech and thought develops in different ways and with different functions before 2 years old. Changes in the relationship between thinking and speech support Vygotsky's argument. Vygotsky's theory thinks there is a different genetic basis for thought and speech. When two years old, the idea and words of the child collide and the relationship between thought and speech changes. Then the mind is verbal and the words become reasonable
Vygotsky believes that language is a tool that is a function that enables people to put together their ideas. It is important as it conveys the concept of our culture (Vygotsky, 1962). Communication is the main function of speech, the first speech is intended socially as it is used for communication and socializing with others. This is a kind of language that children use to express their needs and emotions. A voice aloud or self-centered speech is the first relationship between external thinking and internal thinking. For example, speak out steps and stages of the task aloud. Vygotsky usually thinks that self-centered utterances are characterized by external signs and manipulations used to solve internal calculations such as calculation of fingers in children between 3 and 7 years old (Wang 2001). Vygotsky believes that self-centered speech is important. Since it is a previous stage, studying the inner speech (Benson, 1995)
For Vygotsky, the inner statement is "not an inner aspect of foreign language - it is a function itself, it is still a speech, that is, thought and speech are tied up, but foreign language thought is materialized in speech The inner words are mainly purely meaningful thoughts (Vygotsky, 1962, page 149) because the death in the inner language brings thought. Vygotsky can not agree with Piaget's view, When children become self-centered, become conscious of others and learn to talk with others, I believe that "self-centered speech" will occur at the preoperative stage. It disappeared (Nickels, 1998). Vygotsky believes that the development of social speech is primarily a child's discovery to culture, a self-centered speech as an audible self-talk, and finally a higher ability of inner speech and internalization (Benson, 1995).