化学是一门以实验为基础的自然学科,与社会生活实际密切相关。为了有利于学生终身发展,课标要求学生掌握基本的实验技能,发展科学探究的能力,并以实验探究为主线突破化学概念和微观粒子学习中的难点。为更好地培养学生的实验能力,激发学习兴趣,我将课本中的一些演示实验和学生实验进行了改进。一、改进了分子运动的实验教材中演示实验是用大烧杯罩住两个小烧杯,一个放氨水一个放酚酞,酚酞变红证明分子运动。这个实验学生总是把哪个烧 Chemistry is an experiment-based natural science that is closely related to the reality of social life. In order to benefit students’ lifetime development, the curriculum standard requires students to master the basic experimental skills and develop the ability of scientific inquiry, and break through the difficulties of chemical concepts and microscopic particle learning with the experimental exploration as the main line. In order to better cultivate students’ experimental ability and stimulate their interest in learning, I improved some demonstration experiments and student experiments in textbooks. First, to improve the molecular motion experimental textbook demonstration experiment is to use a large beaker to cover two small beakers, put a release of ammonia phenolphthalein, phenolphthalein turns red prove molecular movement. This experimental student always burns which one