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我在教初中物理课的温度计那一节时,使用了自制的模拟温度计,目的是为了让学生能够在课堂上形象直观的理解温度计的工作原理,以及学会如何读数。如果只使用真正的温度计,全班几十位同学反而很难看清楚温度计的构造,更谈不上读数。用模拟温度计教学时,先在讲台上展示一下真正的温度计并讲解其原理和结构,然后将自制的模拟温度计投影在屏幕上,来模拟真正温度计所发生的现象。全班学生均能清晰的观察到模拟温度计上的“水银柱”所指示的温度值,很快就学会了如何使用温度计的方法。模拟温度计的投影片制作材料及步骤如下。
When I was teaching a section of the thermometer for junior physics classes, I used a self-made analog thermometer to give students a visual understanding of how thermometers work in class and learn how to read them. If you only use the real thermometer, the class of dozens of students instead of hard to see clearly the structure of the thermometer, let alone the readings. Teaching with the analog thermometer, the first podium to show the real thermometer and explain the principles and structure, and then the homemade analog thermometer projection on the screen to simulate the real thermometer phenomenon. All students in the class were able to clearly observe the temperature values indicated by the “mercury” on the simulated thermometer and quickly learned how to use the thermometer. Analog thermometer projection film production materials and steps are as follows.