There are 344 interviewees in junior high school mathematics teaching resources in Liaoning Province. According to the number of primary and secondary school teachers interviewed, the number of junior high school mathematics interviews is 344. The contents of the teacher qualification interview include appearance, professional knowledge, oral expression ability and comprehensive analysis ability. The interview of teacher qualification certificate adopts structured interview and scenario simulation, and is conducted through lesson preparation (or activity design), trial lecture (or demonstration) and defense (or statement).