Social constructivism is a social learning theory that was developed by psychologist Lev Vygotsky. With this concept, Vygotsky wanted to prove that learning didn’t just happen solely via being taught new information. Rather, he believed that cognitive functions are developed from social interactions, and thus learning also occurs when people (specifically young children) interact with others.
According to Vygotsky’s 1978 study, Interaction between learning and development:
“Every function in the child's cultural development appears twice: first, on the social level and, later on, 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.”