教师通常需要运用批评的方法使学生认识错误，改正错误。如果运用得好，可以使学生改正错误，吸取教训，推动他们不断前进；如果运用得不好，非但不能使学生改正错误，而且会使学生产生对立情绪，导致不好的教育效果。因此，熟练地掌握批评的原则、方法与技巧，对每一个教师来 Teachers often need to use critical methods to enable students to recognize and correct mistakes. If used well, students can correct their mistakes, learn lessons and push them forward. If they are not well used, they not only can correct their mistakes, but also create antagonistic feelings among students and lead to poor educational results. Therefore, master the principles, methods and techniques of criticism to every teacher