Vygotsky’s main concern is that social interaction and social context, a world full of other people, who interact with the child from birth onwards, are essential in the cognitive development. He states that "Every function in the child's cultural development appears twice: first, on the social level, and later, on the individual level; first, between people (interpsychological) and then inside the child (intrapsychological). This applies equally to voluntary attention, to logical memory, and to the formation of concepts. All the higher functions originate as actual relationships between individuals." (Vygotsky, 1978:57).
Next, he points out at the idea that the potential for cognitive development is limited to a certain time span, which he names the “zone of proximal development”. (ZPD) In addition, full development during ZDP depends upon full social interaction. The range of skill that can be developed with adult guidance or peer collaboration exceeds what can be attained alone. It is of very fact that other people play important roles in helping children to learn, providing objects and ideas to their attention, talking while playing and sharing while playing, reading stories, asking questions. In a wide range of ways, adults mediate the world for children and make it possible for them to get access to it. The ability to learn through instruction and mediation is characteristic of human intelligence. By the help of adults children can do and understand more than they can on their own. (Cameron, 2002:5-8) Actually, Vygotsky proposed the notion of the zone of proximal development (ZPD) to give a new meaning to ‘intelligence’. Instead of measuring intelligence by what a child can do alone, Vygotsky suggested that intelligence could better be measured by what a child can do with skilled help.
Vygotsky attempted to shed light on consciousness which develops as a result of socialization. While learning a language the first