K12 Inc is an American online educational company. The company offers alternative programs to traditional on-campus schooling. K12 also operates state-funded virtual charter schools around the United States. The educational programs for K-12 students are usually monitored by parents and provide virtual classroom environments where teachers meet with students online, by phone, or in-person. The company's contractual agreements with various school districts to offer its curriculum programs provide a majority of the company's revenue.