A state school, public school, or government school is a primary or secondary school that educates all students without charge. They are funded in whole or in part by taxation and operated by the government of the state. State-funded schools are global with each country showcasing distinct structures and curricula. Government-funded education spans from primary to secondary levels, covering ages 4 to 18. Alternatives to this system include homeschooling, private schools, charter schools, and other educational options.