In order to ensure normal teaching orde r, protecting students ' he althy growt h, ensuri ng that nati onal (pr operty) is not lost, t o prevent or minimize the occurrence of safety accide nts, follow the "preve nt, rescue ea ch ot her, ensure safety and reduce l osse s" principl e, accor ding to the local conditions, make the ma nagement system. 1, t he pri nci pal is t he responsibility of scho