"The purpose of Head Start is to promote the school readiness of income eligible children by enhancing their cognitive, social, and emotional development in a learning environment that supports children's growth in language, literacy, mathematics, science, social and emotional functioning, creative arts, physical skills, and approaches to learning, through the provision to low-income children and their families of health, educational, nutritional, social and other services that are determined based on family needs assessments, to be necessary."