加速度是力学中的重要概念,也是高一年级物理课程中比较难懂的概念之一。其中加速度的方向是学生理解的难点,也是教师教学的困惑之处。在学生的生活经验中,与加速度有关的现象很少,这给学生理解加速度概念带来困难,也给教师教学带来了困难。传统教学效果很差,学生根本不理解其方向到底有什么样的物理意义。这样很有必要打破已有的教 Acceleration is an important concept in mechanics and one of the more difficult concepts in the first-year physics curriculum. The direction of acceleration is difficult for students to understand, and it is also a puzzle for teachers. In the student’s life experience, there are few phenomena related to acceleration, which makes it difficult for students to understand the concept of acceleration, and it also brings difficulties to teachers’ teaching. The traditional teaching effect is very poor, and students do not understand the physical meaning of their orientation. It is necessary to break the existing teaching