《普通高中化学课程标准(实验)》要求教师学会理解实验,可以根据需要对化学实验进行适当的改进,以更好地补充实验内容。纵观化学教材中的实验,其中不乏存在一些需要改进的内容,例如现象不够明显、内容不够全面、知识涉及面不够广等问题,所以需要教师去研究探索,努力改进演示实验,增强实验效果;补充演示实验,巩固实验知识;拓展演示实验,提高学生能力。同时,教师可以充分利用日常生活用品补充实验器材,倡导绿色实验,积极改进实 “Ordinary high school chemistry curriculum standard (experiment)” requires teachers to understand the experiment, chemical experiments can be properly modified as needed to better complement the experimental content. Throughout the experiments in chemistry textbooks, there are many problems that need to be improved, such as the phenomenon of not enough obvious, the content is not comprehensive enough, the scope of knowledge is not enough and so on, so teachers need to study and explore, and strive to improve the demonstration experiment and enhance the experimental effect; Supplementary demonstration experiments to consolidate the experimental knowledge; to expand demonstration experiments to improve student ability. At the same time, teachers can make full use of daily necessities to supplement experimental equipment, promote green experiments, and actively improve the real