Pre-shift warning education is generally carried out before starting work every day. The main purpose is to prevent risks and problems through early warning. This kind of education emphasizes prevention and vigilance, and reminds employees to abide by rules and operating procedures by sharing warning cases to prevent potential safety risks and accidents.

After-school education is mainly carried out at the end of work every day. The main purpose is to summarize and reflect, help employees review and summarize the work of the day, find out the existing problems and deficiencies, so as to correct and improve in time. This kind of education pays more attention to effectiveness and improvement. Through feedback and discussion, help employees improve their skills and work efficiency, and reduce the occurrence of mistakes and accidents.