俗话说：“好的开始是成功的一半”。学生对新知识的学习欲望及其学习效果，与教师课前两三分钟的导入有很大关系，成功的导入像是打开了殿堂的大门，使学生进入学习新课的最佳精神状态。１．故事猜谜导入法：小学生对故事、童话、谜语等有浓厚的兴趣，教师往讲台上一站，常因 As the saying goes: “a good start is half done.” Students 'learning desires for new knowledge and their learning effects are closely related to teachers' introduction of two or three minutes before the class. A successful introduction is like opening the door of the palace so that students can enter the best mental state of learning the new lesson. 1. Mystery of the story into the law: pupils on the story, fairy tales, riddles, etc. have a strong interest in teachers to the podium on the station, often due to