伴随着教学多媒体设备的不断普及和发展,教学投影仪的数量大幅度上升,为教学课堂增添了一道靓丽风景线,增加了课堂活力,提高了学生的学习效率,满足了学生的要求,为课堂教学带来了良好效果,然而,这种新型的教学技术也存在自身的缺点与不足,那就是在投影仪的使用难免会出现问题,明确问题,并采取有效的解决措施是十分必要的。 With the popularization and development of teaching multimedia devices, the number of teaching projectors has risen dramatically, adding a beautiful landscape to the teaching classrooms, increasing classroom vitality, improving students ’learning efficiency, meeting students’ requirements, However, this new teaching technology also has its own shortcomings and shortcomings, that is, it is inevitable to use the projector will have problems, identify problems and take effective measures to resolve it is very necessary.