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先看一节关于《摆的研究》(苏教版《科学》四下内容) 课堂教学的教学片段。教师在引导学生认识摆、认识摆的摆动次数后让每个实验小组统计本组摆在 10秒钟内摆动的次数,再对 6个组的 6个摆动次数进行了统计并板书在黑板上:10 10 9 10 10 9师:为什么 6个组的摆在 1秒内摆动的
Take a look at a section about the teaching of “teaching in the pendulum” (the four chapters of “Science” in the Sujiao edition). Teachers in guiding students to understand the pendulum, the number of pendulums after each experimental group statistics in this group set the number of oscillations within 10 seconds, and then six groups of 6 wobble statistics and board on the blackboard: 10 10 9 10 10 9 Division: Why 6 groups swing in 1 second