热水在冷水中怎样跑?是苏教版《科学》三年级上册《热往哪里传》一课中的一个活动,教学时间分配上只有10分钟,我在教学时是这样设计的:教师直接提出问题后,引导学生想办法看到热水在冷水中跑,再让学生实验、交流得出结论。课前学生围在讲台边,纷纷议论,“老师,我们今天学冷水和热水?”“老师,冷水中倒进热水会怎样?”……看着学生好奇的样子,我改变原来的引入方法,就学生提出的问题进行启发:“如果热水倒进冷水会怎样?”学生的问题受到重视,因而兴致很高,大胆进行猜测,有的说:“热水在冷水中会散开”有的说:“热水会浮在水面上”有的说:“热水会变成温水”……他们急于想知道结 Hot water in cold water how to run? Is the Sujiao version of “Science” Volume III “hot where to pass” an activity in the lesson, teaching time allocation is only 10 minutes, I was teaching this design: direct After asking questions, guide students to find ways to see hot water running in cold water, let students experiment, exchange concluded. Students around the stage surrounded by podium, have talked about, “Teacher, we learn cold water and hot water today?” “Teacher, pour cold water into the cold water will be what?” Looked curious students look, I change the original introduction Method to inspire students ’questions: “If hot water is poured into cold water, what will happen?” The students’ questions are taken seriously. They are therefore very interested and bold to make guesses. Some say: “Hot water will disperse in cold water” Some say: “hot water will float on the water,” some say: “hot water will turn into warm water.” ... They are eager to know the knot