“良好的开端是成功的一半”.精彩的课堂导入是上好一堂课的良好开始,每一节课的开头好坏,决定着本节课的效果.能否恰当地引入新课,是课堂教学的一个重要环节,它将直接影响到教学效果,也与能否激起学生学习数学的兴趣,调动学生探索的积极性密切相关.数学是一门基础学科,要有严谨的思维和充分的想象力,它是学习其他学科特别是理科的基础.可是目前很多学生觉得 “Good start is half done. ” Wonderful class introduction is a good start to a class, the beginning of each class is good or bad, determines the effect of this class.Can properly introduce new class, Is an important part of classroom teaching, it will directly affect the teaching effectiveness, but also with whether it can arouse students’ interest in learning mathematics, to mobilize the enthusiasm of students to explore closely related to mathematics is a basic discipline, there must be rigorous thinking and full Imagination, it is the basis for learning other disciplines, especially science, but many students think