With the development of computer and multimedia technology, multimedia teaching is widely applied in university. However, there are many errors and problems in the application of multimedia teaching. Multimedia teaching makes no interaction between teacher and student, and leads it hard to exert teacher's leading role and students' main role. The method of interactive teaching can compensate the shortage of multimedia teaching, improve the students' enthusiasm and strengthen the communication between teachers and students, so as to improve the teaching effect. In the condition of the mobile phone has massive popularization, enhancement of multimedia teaching interactive, the mobile phone short message is better than the mode of traditional interactive teaching. On the basis of the research of SMS technology, AT instructions and character encoding, the system of interactive multimedia classroom based on GSM module was designed.%随着计算机和多媒体技术的发展,多媒体教学在高校中得到了广泛的应用.然而多媒体教学在应用中出现了不少误区,存在不少的问题.多媒体教学使教师与学生之间失去了互动性,难以发挥教师在课堂上的主导作用和学生的主体作用.互动式教学方法能够弥补多媒体教学的不足,提高学生的积极性,加强师生之间的沟通,从而提高教学效果.在手机已经大量普及的情况下,利用手机短信增强多媒体课堂教学的交互性,比传统的教学交互模式效果更好.文章在研究SMS技术、AT指令集和字符编码的基础上设计了基于GSM模块的交互式多媒体课堂系统.
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