What does education 12k mean? The answer is: it should be K 12, K 12. Education is a special term, which is the abbreviation of preschool education for senior high school education. Now it is widely used to refer to basic education. Content: It refers to kindergarten (generally 5-6 years old) to 12 years old (generally 17- 18 years old), which are the first two grades and the last two grades of free education in the United States, Australia, Britain and Canada respectively. K- 12 is the international basic education. The importance of education: 1, education has a great influence on the development of a country, and education is seriously related to the rise and fall of a country. 2. It is the interaction between education and economy, and education cultivates talents for economic development. 3. It is education that has an impact on society. Education and society interact and promote each other. 4. It is the influence of education on culture.