K 12 is a special term for education, which is the abbreviation of preschool education to high school education, and is widely used to refer to basic education. K 12 refers to the kindergarten to the twelfth grade, which is the first and last two grades of free education in the United States, Australia, Britain and Canada. It is an international general term for basic education, which is mainly adopted by North American countries such as the United States and Canada.

K 12 is a special educational term, which is the abbreviation of preschool education to high school education. Now it is widely used to refer to basic education. K 12 refers to the kindergarten to the twelfth grade, which is the first and last two grades of free education in the United States, Australia, Britain and Canada. It is an international general term for basic education, which is mainly adopted by North American countries such as the United States and Canada.