在学习初三物理内能一节时,为了培养学生自己动手动脑的好习惯,提高其学习兴趣,笔者指导学生制作了一个酒精点火器的模型,现象明显,深受学生喜爱,现简介如下。一、实验器材装胶卷的塑料盒1个(用其他塑料盒代替也可以,但是盒盖最好不要用螺纹口的)、打火机中的电子引火器(拆下备用)、1m长的细导线2根(可以利用电 In learning the first three days of physical energy to a section, in order to develop students to practice their own good habits and improve their interest in learning, the author guides students to create a model of alcohol lighter, the phenomenon is obvious, loved by students are as follows. First, the experimental equipment mounted plastic film box 1 (replace with other plastic boxes can also be, but the lid is best not to use threaded mouth), lighters electronic firearms (remove spare), 1m long fine wire 2 Root (you can use electricity