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(一)敎材排列的次序,祇作參考,本是規定性的,可由編者或敎者自行决定。 這層意思,方嗣(?)先生在原稿中關於初中的『原則』六和關於高中的『原則』二內,都有說明。照這樣說,方先生在『編餘語』內對敎材排列的次序所提出的問題,也就不成爲嚴重問題了。當然大家可以討論。把我個人的意見寫在下面。在講過電池和電流之後,電壓和電阻究應孰先孰後?我個人贊同先講電動勢和電壓,後講電阻。理由不在電阻的實用單位或是電壓的實用單位,那個應該先行規定,兩者都是一樣的可以具體地獨立地制定;而是在於觀念形成的先後。電動勢(或電壓)是電流產生的原因,而電阻是產生了的電流所以有强弱的緣故。有了電流、電動勢(或電壓)和電阻三個觀念之後,再來說明這三者之間的關係——歐姆定律。至於波動似應放在振動之後,我完全同意方先生的主張,因爲波動是振動的傳遞,觀念比較複雜,比
(1) The order in which billet is arranged is for reference only. It is prescriptive and may be decided by the editor or gazette. In this sense, Fang Sifu (?) Explains in the manuscript the six principles of junior high school and the “two principles” of high school. In this way, the issues raised by Mr FANG in the “remarks” on the order in which the balsai are arranged should not be a serious one. Of course we can discuss. Write my personal opinion below. After talking about the battery and current, the voltage and resistance should be preceded? I personally agree with the emf and voltage, after talking about resistance. The reason is not a practical unit of resistance or a practical unit of voltage, that should be the first provision, both are the same can be specifically formulated independently; but rather the concept of the formation of the order. Electromotive force (or voltage) is the cause of the current, and resistance is the resulting current so the strength of the reason. With the three concepts of current, electromotive force (or voltage), and resistance, the relationship between the three is again illustrated - Ohm’s Law. As for the fluctuation, which should be placed on the vibration side, I totally agree with Mr. Fang’s position because the fluctuation is the transmission of vibration and the concept is rather complicated.