化学是以实验为基础的学科,化学实验不仅有助于学生更好地掌握化学知识,而且它本身就是学生重要的化学素养。但是,教材中的有些实验是不好操作的,有些演示实验的实验效果不明显,学生很难从中获得相应的化学知识,为了提高实验教学的有效性,我认为可以适当地改进教材 Chemistry is an experiment-based discipline that not only helps students master chemistry better, but is also an important chemical literacy for students. However, some experiments in the textbook are not good for operation. Some experimental experiments are not effective and students can hardly obtain the corresponding chemical knowledge. In order to improve the effectiveness of experimental teaching, I think that teaching materials can be improved properly