Physics is a living science, is a new subject, is a subject closelyrelated to experiment. Many students learn under the impression that physicsis nothing but calculations. Calculus is part of physics, but it's not the mostimportant part. The most important part of physics has to do with phenomena.Phenomena are the root of physics. Our high school teachers can no longerimmerse in the traditional teaching mode, only to continue to explore andinnovate, through the phenomenon, expose the nature of physics, restore theoriginal appearance of physics.