省编义务教育五年制小学《数学》第七册有一段“统计初步知识”的内容,其第一个教学目标是要求学生能在动态情况下随机收集原始数据,这在一般情况下,很难做得到。笔者录制了一段高速公路上各种车辆行驶的录像,在教学过程中,根据不同的要求组织学生看了三遍,帮助学生达到了教材所提出的教学要求。 Provincial compulsory education five-year primary school mathematics seventh book has a “preliminary knowledge of statistics,” the content of its first teaching objective is to require students to dynamically collect raw data at random, which under normal circumstances It’s hard to do. The author recorded a video of a variety of vehicles running on the expressway. During the teaching process, the students were organized three times according to different requirements to help the students meet the teaching requirements of the teaching materials.