Paraphrase this :

SCT focuses on children cognitive development and specially emphasizes the integration of social, cultural and biological elements and believes that socio-cultural circumstances play a central role in human’s cognitive development and that the process of the development higher mental functionioning is the one by which people internalize or regulate what they learn from social activities through the mediation of symbolic tools and by going through the zone of proximal development, and during this period, language develops from social speech to private speech and then finally to inner speech or verbal thought.

SCT focuses on the cognitive development of children, emphasizing the importance of integrating social, cultural, and biological factors. It believes that socio-cultural circumstances are central to cognitive development, and that the development of higher mental functioning is achieved through internalizing and regulating knowledge acquired from social activities with the help of symbolic tools in the zone of proximal development. Language evolves from social speech to private speech and ultimately to inner speech or verbal thought during this process.