人们常说,良好的开端等于成功的一半。要想上好一堂数学课,首先必须有个良好的开端——即精彩的引入新课。引入新课的好坏对学生的学习和掌握知识点有举足轻重的作用。新课引入能将新、旧知识联系起来、有集中学生的注意力、激发学生学习的兴趣、为新课创设教学情境,使学生迅速进入角色的作用。因此,我们有必要对引入新课作一些研究。 People often say that a good start is equal to half the battle. To get on top of a math class, you must first have a good start - a wonderful introduction of a new lesson. The introduction of the new class is good or bad for students to learn and master the knowledge of point play a decisive role. The introduction of the new class can link the new and old knowledge, concentrate students ’attention, stimulate students’ interest in learning, create a teaching situation for the new class and enable students to quickly enter the role of role. Therefore, it is necessary for us to make some research on the introduction of a new course.