Lev Vygotsky is a Russian Psychologist who proposed the theory of Socio-cultural development. In this theory, Vygotsky emphasizes the role of society and culture in the development of the child. According to him, there are three main needs for the development of the child and these are- Social interaction, Culture, and Language.According to Lev Vygotsky, cognitive development is dependent on the social interaction among people.Children acquire the ways of thinking, learning, and behaving that make up a community's culture through social interaction.The student learns through society, social norms, culture, etc.Student can improve their cognitions and ways of thinking, by engaging in group discussions, team works, activities, etc.Vygotsky opposes the ideas of Piaget, according to Piaget cognitive development is only dependent on physical and biological abilities, but Vygotsky opposes it and said that cognitive development is dependent on social factors also.Thus, by all these references we can say that the theory of lev Vygotsky is dependent on social interaction with the people. Everything that can be learned by the child/person is by directly interacting with society.Important Points Vygotsky also proposed three basic needs of students during learning, these are:ZPD (zone of proximal development): The difference between the learning of a child by self and the learning of a child with the help of others(society, culture, etc).Scaffolding: Scaffolding is the term, given by Vygotsky, in which he proposed that the temporary help given by the teachers, family, friends, etc. to the children in his learning.MKO (more knowledgeable others)- Vygotsky defined the œMore Knowledgeable Other (MKO) as anyone who has a better understanding or a higher ability level than the learner, particularly in regards to a specific task, concept, or process. MKO could be teachers, parents, tutors, and even peers.