论文部分内容阅读
一、设计思路实验是巩固所学知识、提高应用能力的一个重要方法,同时也是一个载体,能有机地实现跨学科知识的渗透,实验知识的迁移、综合和创新。因此,笔者在复习氮族元素时增加了浓HNO_3、稀HNO_3、NO_2NO性质的联合实验,这样不仅激发了学生的学习兴趣,而且在直观生动的实验中学生加深了对知识的理解,强化了对知识的记忆,增强了学生的创新意识。二、实验装置实验装置如附图所示。
I. Design Ideas Experiments are an important method to consolidate what they have learned and improve their ability to apply. They are also a carrier that organically enables the infiltration of interdisciplinary knowledge and the transfer, synthesis and innovation of experimental knowledge. Therefore, when the author reviewed the study of nitrogen elements, the combined experiments of HNO_3, dilute HNO_3 and NO_2 NO have not only stimulated students’ interest in learning, but also deepened the understanding and enhancement of knowledge in vivid experiments The memory of knowledge, enhance students’ sense of innovation. Second, the experimental device Experimental device as shown in the figure.