随着科学技术的发展,现代科技手段在教学中越来越广泛地被运用。它那融形、声、色于一体,直观形象的特点,极大地提高了学生学习的兴趣,有利于突破教学重点和难点,提高教学速度和教学效率。但由于多媒体课件制作的复杂性,使我们每个教师都害怕使用它,即使用了,也常会出现使用过于简单、为电教而电教等问题。如此,很多教师常常会放弃使用多媒体,采用一些传统的替代办法,如画图等,自以为能 With the development of science and technology, modern scientific and technological means are being applied more and more widely in teaching. Its melting, sound and color in one, the characteristics of visual image, which greatly enhances the interest of students in learning, is conducive to breaking the teaching focus and difficulties, improve teaching speed and efficiency of teaching. However, due to the complexity of making multimedia courseware, each of us teachers are afraid to use it. That is to say, when it is used, we often find it too simple to use and teach for audio-visual education. In this way, many teachers often give up using multimedia and adopt some traditional alternatives, such as drawing, etc.