四步教学法是指学生在教师操作示范下,掌握规范的操作要领,练习基本专业技能,它打破传统的教师作为教学主体的教学模式,还课堂给学生,让学生成为课堂的主体。四步教学法主要包括前期准备,讲解、示范,模仿操作和练习与巩固四个阶段。 Four-step teaching method refers to the students under the teacher’s operation demonstration, master the normative operation essentials, practice the basic professional skills, it breaks the traditional teacher as the main teaching mode of teaching, but also to the students in class, so that students become the main body of the class. Four-step teaching method mainly includes preparation, explanation, demonstration, imitation operation and practice and consolidation in four stages.