Teaching is important as it plays a crucial role in fostering student development in their cognitive, affective, and psychomotor domains. In the cognitive domain, teaching provides knowledge, develops critical thinking, and fosters creativity. In the affective domain, teaching creates positive attitudes, encourages social/emotional skills, and promotes ethical values. In the psychomotor domain, teaching provides hands-on experiences, guides skill acquisition, incorporates movement/kinesthetic learning, and integrates technology.