Naturalism is a philosophical position that approaches education from a purely scientific viewpoint. It believes that nature alone represents all of reality, without anything supernatural. Naturalism views human life as wholly part of nature, governed by natural laws and forces. There are three main forms of naturalism - physical, mechanical, and biological. Naturalism emphasizes allowing children's natural development to take place freely according to their instincts and nature, without interference from teachers, textbooks, or rigid curriculum. The teacher's role is simply to observe children and provide a supportive environment for their natural growth. Naturalism aims to develop children's self-realization, expression, preservation and adjustment to their environment through free exploration and experiences in nature.