Because education never takes place in a vacuum but is deeply embedded in a socio

cultural milieu, learning is a matter not only of cognitive development but also of shared social

practices. The cognitive and social go hand in hand in classroom learning. The primary process by which learning takes place is

interaction… and engagement with other learners and teachers in joint activities that focus on matters of shared interest and that

contain opportunities for learning.

Walqui, 2002, page 1 cited Learning through talk. Minsitry of education