科学是一门以观察和实验为基础的学科,实验是学习科学的基础,科学规律的得出都是从实验开始的,优化实验能激发学生的主观能动性,提高学习科学的兴趣,提高课堂效率,提高学习效率。通过课堂体验,对一些实验进行改进,取得了良好的效果,促进了学生对科学规律和现象的理解。 Science is a subject based on observation and experiment. Experiment is the basis of learning science. Scientific laws are derived from experiments. Optimizing experiments can stimulate students’ subjective initiative, increase their interest in learning science and improve classroom efficiency ,Improve learning efficiency. Through the classroom experience, some experiments were improved and achieved good results, which promoted the students’ understanding of the laws and phenomena of science.