有效的、巧妙的课堂导入,如同一把开启学生兴趣大门的金钥匙,能营造一种浓郁的学习氛围,充分调动学生学习积极性,使学生进入良好的学习状态,从而为整节课的学习打下良好的开端。因此,精心设计课堂导入是必要的。 Effective, clever classroom introduction, like a golden key to open the door of interest of students, can create a rich learning atmosphere, and fully mobilize the enthusiasm of students learning, so that students enter a good learning state, so as to lay the whole class of learning A good start. Therefore, careful design of the classroom is necessary.