这是我在给三年级的孩子上《水结冰了》这一课发生的故事。课的内容是探究水结冰时的温度。在实验中,我要求学生用两支温度计分别测量水结冰时的温度和冰、水、食盐混合物的温度,了解水结冰的原因。第一节课是在三(4)班上的。水结冰时的温度很快被学生们测量了出来。“老师,水结冰的温度是0℃。” This is what happened to my third grader’s lesson, “Water Freezes.” The content of the lesson is to explore the temperature at which water is frozen. In the experiment, I asked the students to use two thermometers to measure the temperature of water freezing and the temperature of the mixture of ice, water and salt separately to understand the reason of water freezing. The first lesson is in three (4) classes. The temperature of the water was quickly measured by the students. “Teacher, the temperature of water icing is 0 ℃. ”