以情境-实验-问题突破传统——“二氧化硅和信息材料”的教学

Breakthroughs in Context-Experiment-Question of Teaching of “Silicon Dioxide and Information Materials”

针对"二氧化硅和信息材料"这部分内容在传统教学过程中存在缺乏合适的实验探究活动、教学情境素材对学生的吸引力不强、对高纯硅制备的反应原理分析不够深入等问题,通过创设真实而富有价值的问题情境(手机芯片),设计纳米二氧化硅与氢氧化钠溶液反应等实验探究活动,设计帮助学生深度理解高纯硅制备原理的问题等一系列措施进行相应的教学改进,并在此基础上展开教学实践。

Aiming at the problems of the traditional teaching process of'silicon dioxide and information materials'such as the lack of appropriate experimental inquiry activities,the weak attraction of teaching situational materials to students,and the lack of in-depth analysis of the reaction principle of high-purity silicon preparation,the corresponding teaching improvement had been performed by creating of real and valuable scenarios,like'cell phone chip'and designing experimental research activities such as the'reaction of nano silicon dioxide and sodium hydroxide solution'.A series of measures should be designed to help students deeply understand the principle of high purity silicon preparation,and a series of corresponding teaching improvements should be made.On this basis,teaching practice were carried out.