Teachers don’t merely deliver the curriculum. They develop, define it, and reinterpret it too. It is what teachers think, what teachers believe and what teachers do at the level of the classroom that ultimately shapes the kind of learning that young people get. (Hargreaves 1994, p. ix)
Hargreaves, A. (1994). Changing teachers, changing times: teachers’ work and culture in the postmodern age. London: Cassell.