化学是一门以实验为基础的自然学科,实验对于学生化学兴趣的培养,实验技能的掌握具有至关重要的作用,而学生实验的规范操作,实验现象的正确观察,物质世界的精准认识,教师有效的实验指导从中起着事半功倍的作用。 Chemistry is a natural science based on experimentation. Experiments play a crucial role in cultivating students’ interest in chemistry and mastering experimental skills. Students’ experimental operation is standardized, experimental phenomena are observed correctly, and the physical world is accurately recognized. The effective experimental guidance of teachers plays a multiplier role.