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数轴(number axis):规定了原点(origin)、正方向和单位长度的直线叫数轴。数轴是数学上常用的一种研究工具,它形象地反映了“数”与“形”之间的对应关系,实现了“数”与“形”的统一,它可以帮助我们直观地理解物理学的有关概念,还可以运用它来解决许多问题。本文通过一些实例说明数轴在促进学生学习物理知识中的作用。
Number axis: A straight line specifying the origin, positive direction, and unit length is called the number axis. The number axis is a kind of research tool commonly used in mathematics, which vividly reflects the correspondence between “number ” and “form ” and realizes the unity of “number ” and "form Can help us to understand the concept of physics intuitively, but also can use it to solve many problems. This article illustrates the role of axioms in promoting students’ knowledge of physics through some examples.