教师讲课导入的好,不仅能吸引住学生,唤起学生的求知欲望,而且能燃起学生智慧的火花,使学生积极思维,勇于探索,主动地去获取知识。反之学生很难马上进入角色,学习不会积极主动,教学就达不到预期的效果。在课堂教学中,一定重视教学伊始的导入艺术。运用多媒体导课,利用其特有的功能,更能优化数学课的导 The introduction of teacher lectures is good, not only to attract students, arouse the students’ desire for knowledge, but also ignite the spark of student intelligence, so that students actively thinking, the courage to explore and take the initiative to obtain knowledge. Conversely, it is very difficult for students to enter the role immediately, and learning will not be proactive and teaching will not achieve the desired results. In class teaching, we must attach importance to the introduction of art at the beginning of teaching. The use of multimedia tutorials, the use of its unique features, better optimize math class guide