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在这里謹就这一課題的教学提出一些意見,不恰当的地方还希望同志們指正。 1.在这一課题中,学生將知道什么是匀加速運动和匀减速運動,将要認識平均速度、即時速度和加速度等重要概念,將要掌握匀變速度運動的規律並用來解决一些实際問题。这一課题的系統是这樣安排的,在一般地複習了前一章所學的變速運動以後,介紹平均速度,即時速度和加速度三個概念,然後在这個基礎上仔細研究勻加速運動的规律,把自由落体運動作為勻加速度運動的具体例子列在勻加速運動之末。然後再研究勻减速度並歸納出勻變速運動的概念,把竖直上拋物体的運動作為勻减速運動的具体例子列在它的後面。
Here I would like to put forward some opinions on the teaching of this topic, and where inappropriate, I also hope that the comrades can correct me. 1. In this subject, students will know what is uniform and slow motion, and you will know important concepts such as average velocity, instantaneous velocity, and acceleration. You will learn the law of uniform velocity motion and use it to solve some practical problem. The system of this subject is arranged in such a way that, after a general review of the variable speed motions learned in the previous chapter, three concepts of average speed, instantaneous speed and acceleration are introduced, and on this basis, careful studies of uniform acceleration The law, the free-fall movement as a uniform acceleration of the concrete examples listed in the end of uniform acceleration. And then study the uniform deceleration and sum up the concept of uniform variable speed motion, the vertical motion of the parabolic object as a concrete example of uniform deceleration listed behind it.