Final answer:
Lev Vygotsky believed that peer interactions and social interactions were crucial elements for classroom learning.
Step-by-step explanation:
Lev Vygotsky believed that peer interactions and social interactions were crucial elements for classroom learning. Vygotsky's sociocultural theory of development emphasized the importance of social interaction in cognitive development. According to Vygotsky, learning and development occur through social interactions with more knowledgeable individuals, such as peers and teachers.