化学是一门以观察和实验为基础的自然科学,与现实生活联系最密切,在教学中应把课本上的一些实验进行合理地、科学地改进与创新,充分发挥化学实验的多种功能和作用,这不仅可以通过实验掌握化学知识,也是培养学生自主学习能力、探究能力和创新能力的重要措施。 Chemistry is a natural science based on observation and experiment. It has the closest connection with the real life. In the teaching, some experiments in the textbook should be reasonably and scientifically improved and innovated, and the various functions of the chemical experiment should be given full play. This not only can grasp the chemical knowledge through experiments, but also is an important measure to cultivate students' autonomous learning ability, inquiry ability and innovation ability.