Beiguan School. Compared with Nanguan School, Beiguan School has stronger teachers and better teaching environment. Liaoning Heishan Beiguan Experimental School is a key experimental school in Liaoning Province and one of the famous schools in China. The school was founded on 1948. 65438-0958, the first "centralized literacy" teaching method in China, was highly valued by the Propaganda Department of the CPC and the Ministry of Education.