学生在设计实验方案、进行实验操作、观察记录现象、进行数据处理、获取实验结论的过程中,不仅能获取知识、技能和方法,提高探究能力,还能形成良好的情感态度与价值观。化学实验是很生动、很直观的,实验中千变万化的现象最能激发学生的兴趣。 Students not only acquire knowledge, skills and methods, improve their inquiry ability, but also form good emotional attitudes and values ​​during the process of designing experimental programs, conducting experimental operations, observing and recording phenomena, conducting data processing and obtaining experimental conclusions. Chemistry experiment is very vivid, very intuitive, the ever-changing phenomenon in the experiment can stimulate students’ interest most.