This document discusses curriculum in schools. It defines curriculum as the lessons and academic content taught in a school. It outlines the different levels of education (elementary, high school, technical/vocational, higher) and the types of curricula (recommended, written, taught, supported, assessed, learned, hidden). It emphasizes that the teacher plays a key role as a curricularist - knowing the curriculum, writing it, planning it, initiating new curriculum, innovating it, implementing it, and evaluating it. The teacher's influence on students and the curriculum extends far beyond the classroom.