What set of textbooks does Qingdao middle school and primary school use for mathematics?
People's Education Edition According to official website, the Education Bureau of Qingdao, primary and secondary schools in Qingdao use people's education edition textbooks, and most schools in Qingdao also use people's education edition textbooks, which are issued by Xinhua Bookstore Group. Qingdao, also known as Island City, Qingdao and Jiaoao, is a prefecture-level city, a sub-provincial city, a city with separate plans and a megacity under the jurisdiction of Shandong Province, China.