Ronald J. Packard Invented K 12
K 12 was invented in April 2000
K 12 is The k 12 is a program that covers kindergarten and 12 years of basic education (six years of primary education, four years of junior high school, and two years of senior high school [shs] to provide sufficient time for mastery of concepts and skills, develop lifelong learners, and prepare graduates for tertiary education