本文首先从教学秩序、学法指导、课题选择和教师辅导等方面阐述了上好实习课应该注意的有关事项。然后,以《三角函数的应用》为例,详细论证了上好实习课的重要性主要体现在以下四个方面:一是有利于提高学生的学习兴趣。二是有利于培养学生解决实际问题的能力。三是有利于课本知识的巩固和灵活运用。四是有利于培养学生良好的个性品质。 This article first elaborates the related matters which should be paid attention to in the good practice class from the teaching order, the guidance of the study of law, the choice of subject and the guidance of teachers. Then, taking “the application of trigonometric function” as an example, it demonstrates in detail the importance of good practice class mainly in the following four aspects: First, it helps to improve students’ interest in learning. The second is to help students develop their ability to solve practical problems. Third, it is conducive to the consolidation and flexible use of textbook knowledge. Four is conducive to cultivating students a good personality.