“利用打点纸带测定匀变速运动的加速度”是力学中一个难度较大的学生实验。在这个实验的教学中,为突破难点,教师应先让学生观察打好点的纸带,在此基础上分析哪些点符合要求、如何选点、如何记录和处理数据,引导学生抓住打点计时器的使用和纸带的数据处 “Using punching tape to measure the acceleration of uniform speed motion” is a difficult student experiment in mechanics. In the teaching of this experiment, in order to break through the difficulties, the teacher should first let the students observe the tapes that make good use of the points. Based on this, they should analyze which points meet the requirements, how to select points, how to record and process data, and guide students to catch the timing. For the use of tape and tape data