物理规律是教学的重要内容,而探索规律也是物理学的重要任务。通过探索性的学习,不仅便于掌握规律,更是为了在经历科学探索的过程中发展能力、培养探索精神。由于物理规律表现为多个因素(概念)之间的内在联系和相互制约,因此控制变量法必然成为规律探索的重要方法和手段。 The law of physics is an important part of teaching, and exploring the law is also an important task of physics. Through exploratory learning, not only easy to grasp the law, but also in order to experience the development of scientific ability to explore and develop the spirit of exploration. Since the physical laws are manifested by the internal relations and mutual restraints among many factors (concepts), the control variable method will inevitably become an important method and means to explore the law.