所有化学知识都是前人在实验的基础上总结的,所以当教师教授化学实验题时,化学实验能给予学生最直观、最直接、最强烈的体验,是一种有效的教学方法。化学实验题中涉及的实验知识、实验步骤纷繁散乱,要求学生不但熟悉实验操作流程,还要明白每个流程的工作原理和运行目标,并能以实验为蓝本,熟练运用各种化学知识解题,所要求的综合能力极高。换句话说,无论是学生重复操作多遍实验,还是教师全面细致地进行知识点的讲解都无法使学生在化学实验题中获取高分。所以,教师应该依 All chemical knowledge is based on previous experiments. Therefore, when teachers teach chemistry experiment, chemistry experiment can give students the most direct, direct and intense experience, which is an effective teaching method. The chemistry experiment questions involved in the experimental knowledge, the experimental steps are numerous and scattered, require students to not only familiar with the experimental operation process, but also understand the working principle of each process and operational objectives, and experiments can be modeled, skilled use of chemical knowledge to solve problems , The required comprehensive ability is extremely high. In other words, students can not get high marks in chemistry experiment either through repeated experiments by students or through comprehensive and meticulous teaching by teachers. So, teachers should follow