Sociocultural theory (SCT)has its origins in the writing of the russian psychologist L.S. Vygotsky and his colleagues. SCT argues that human mental functioning is fundamentally a mediated process that is organized by cultural artifacts, activities and concepts.
Mediation: Vygotsky developed a unified theroy of human mental functioning, he argue that to create a truly unified psychology requiered a completely new way of thinking about human mental development. Regulation: when children learn language, words not only function to isolate specific objects and actions, they also serve to reshape biological perceotion into cultural preception and concepts.
Mediation by simbolic artifacts: Vygotsky reasoned that humans also have the capacity to use symboils as tools not to control the physical environment but to mediate theri own psychological activity.
The primary way in which we use language to regulate our mental functioning is through private speech. Vygoysky suggested that private speech, as is the case of social speech between people who have a great deal of share knowledge, need not be fully syntactic in its form.
This theory is applicable for everybody because it talks about how people learn with artifacts or objects. Also people have to develop a new way of thinking to improve their knowledge.