本课选自人教社高一新教材第一章第五节。一、设计思想加速度是力学中的重要概念之一,是运动学与动力学的桥梁,也是高中物理中比较抽象、难懂的概念。学生理解加速度的概念有困难,主要原因有以下两点:一是对矢量还不够熟悉,不习惯从方向上描述运动;二是在实际生活中没有获得与加速度相对应的体验,不能很好地理解速度变化 This lesson is selected from the teachings of a new textbook Chapter V of the first chapter. First, the design idea Acceleration is one of the important concepts in mechanics, is a bridge between kinematics and dynamics, but also more abstract high school physics, difficult to understand the concept. Students have difficulty understanding the concept of acceleration for two main reasons. One is that they are not familiar enough with the vector and are not used to describing the movement in the direction. The other is that they do not get the experience corresponding to acceleration in real life and can not do well Understand the speed of change