在实验内容上,我国中学化学教科书中化学实验的内容和形式主要由教学大纲、课程标准决定,课程内容对知识点的调整直接影响教科书中相应实验数量和内容的变化,这在新中国成立后表现得尤为明显。我国早期中学化学教科书中的实验只简单记述实验现象等化学事实,而后逐渐加入了对装置和实验操作的具体介 In the content of experiments, the content and form of chemistry experiments in chemistry textbooks of middle schools in our country are mainly decided by teaching syllabus and curriculum standard. The adjustment of knowledge points in curriculum content directly affects the changes of the corresponding experimental quantities and contents in textbooks. After the founding of new China Performance is particularly evident. Experiments in the chemistry textbooks of early middle schools in our country only briefly described the chemical facts such as experimental phenomena, and then gradually added the concrete introduction to devices and experimental operations