The document discusses the socio-cultural perspective in psychology, emphasizing the significant influence of social and cultural factors on individual behavior, cognition, and development. It highlights Lev Vygotsky's contributions, particularly his concepts of the zone of proximal development and scaffolding, which focus on the role of social interaction and language in cognitive growth. The strengths and weaknesses of the socio-cultural theory are also outlined, pointing out its comprehensive view on development while acknowledging its limitations in accounting for individual differences.