课堂导入是教师运用多种教学媒体,通过不同方式引入新课的一种教学形式。开头开得好,就能先声夺人,激起学生渴求新知的兴趣,调动他们的学习积极性,吸引学生的注意力,起到创设教学情境、揭示教学内容的作用,从而为上好一节课奠定良好的基础。由此可见,课堂导入具有重要的教学功能,认真研究其重要作用,并把导入技巧充分运用到课堂教学中对于我们实现有效教学具有十分重要的意义。下面我根据这几年的教学实践经验,谈谈化学课导入的 Classroom introduction is a kind of teaching form that teachers use a variety of teaching media to introduce new classes through different ways. At the beginning of the program, students will be able to learn first, inspire students ’interest in learning new knowledge, mobilize their enthusiasm for learning, attract students’ attention, play a role in creating teaching situations and revealing teaching content, so as to lay a good foundation for a good class Foundation. This shows that the introduction of the classroom has an important teaching function, a serious study of its important role, and the introduction of skills into the classroom full use of teaching for our effective teaching is of great significance. Here I am based on teaching practice in recent years experience, talk about the introduction of chemistry class