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影响蒸发快慢的三个因素是初中物理“蒸发”一节中的重点教学内容。各种版本的教材中,在总结影响蒸发快慢的三因素时,都是通过列举实际生活中的例子进行讲述的。对于一些不注意观察生活的学生来说,会增加理解难度。如果能在课堂上对蒸发的快慢加以演示,在演示的基础上再总结出影响蒸发快慢的三个因素,会收到更好的教学效果。
The three factors affecting the speed of evaporation are the key teaching contents in the section of junior middle school “evaporation”. In all versions of textbooks, when summarizing the three factors affecting the speed of evaporation, they are described through examples of actual life. For some students who do not pay attention to watching life, it will increase the difficulty of understanding. If we can demonstrate the speed of evaporation in the classroom and summarize the three factors that affect the speed of evaporation on the basis of the demonstration, we will receive better teaching results.