K-12 schools refer to the educational system that includes kindergarten through 12th grade. This system is designed to provide a comprehensive education for children and teenagers, typically from ages 5 to 18. K-12 education is offered in various settings, including public, private, and charter schools, and it covers a wide range of subjects such as math, science, language arts, and social studies. In many countries, including the United States, K-12 education is mandatory, ensuring that all children have access to basic education. The curriculum is structured to promote academic and social development, preparing students for higher education or the workforce. K-12 schools often include extracurricular activities, such as sports and clubs, to enhance the overall learning experience.