9 1, grade five in primary school in 2002, grade three in junior high school in 2005, senior high school in 2007, and graduated from university in 2009. Primary school is a school where people receive primary formal education and an important part of basic education. With the development of society, kindergartens have opened in front of it. Generally, children aged 6- 12 are of primary school age, and the length of primary school education at this stage is 6 years (or 5 years in a few places).

Extended data:

Primary education institutions first appeared in Germany in16th century. They were received by towns and taught practical knowledge and Protestantism.

/kloc-At the beginning of the 0/7th century, the number of such schools gradually increased, and they became institutions that implemented compulsory education. After the bourgeois revolution, European countries and Japan were successively established.

In ancient times, the "primary school" that taught students to read was also called "ignorant learning", which contained two meanings: educational stage and educational place. The main contents of education are literacy, writing and feudal moral education. Textbooks generally include Qiu Meng, Saint Amethyst, Hundred Family Names, Qian Wen Zi and Four Books. There is no fixed number of years. Take individual teaching and pay attention to recitation and practice. Students who are studying are also called "initiation".