初中生的思维从具体向抽象过度,但学生的注意力又不易较长时间地集中,如何使学生在很短时间内学得多、学得好呢?多媒体教学,可激发学生的学习兴趣,能使学生在图文、声情并茂的情境中获取知识、陶冶情操,同时,又有力地促进课堂教学的改革力度。 How to make students learn more in a very short time and how to learn well? Multimedia teaching can arouse students’ interest in learning, Enable students to gain knowledge and cultivate sentiment in the context of pictures and textures, meanwhile, vigorously promote the reform of classroom teaching.