《义务教育数学课程标准》指出:“数学课程的设计与实施应重视运用多媒体技术对数学学习内容和方式的影响,使学生乐意并有更多的精力投入到现实的、探索性的数学活动中去。”多媒体表达的信息量大,具有图、文、音、像并茂的优点。教学中运用多媒体,可使形、声、色浑然一体,创设生动、形象,具有强烈感染力的 The Compulsory Education Mathematics Curriculum Standard states: “The design and implementation of math curricula should emphasize the impact of using multimedia technology on the content and manner of math learning so that students are more willing and devote more energy into realistic and exploratory math activities In. ”Multimedia expression of large amount of information, with the figure, text, sound, like the merits of both. Teaching in the use of multimedia, can shape, sound, color seamless, creating a vivid, image, with a strong appeal