The teacher plays many roles as a curricularist, including as a knower, writer, planner, initiator, innovator, implementor, and evaluator of curriculum. As a knower, the teacher gains knowledge about curriculum through formal education and informal learning. As a writer, the teacher creates instructional materials. As a planner, the teacher analyzes factors like learners and context to create lesson plans. The teacher initiates new curriculum and innovates curriculum through creative strategies and activities. The teacher brings the planned curriculum to life through effective implementation and determines its effectiveness through evaluation.