किसने यह प्रस्तावित किया कि अधिगम तब होता है जब एक बच्चा किसी अधिक जानकार साथी (More knowledgeable peer) या वयस्क के साथ एक साझा गतिविधि में संलग्न होता है?

A slow learner picks up the learning process when placed in a peer group comprising a mixed type of learners. This collaborative social learning indicates which aspect of Vygotsky's theory?

According to , it is important to understand the social processes and influence of the cultural context on children's thinking.