本文描寫作者應(yīng)邀為老同學(xué)解決一起與學(xué)生的物理題“糾紛”。學(xué)生不同意單一的答案,覺得自己應(yīng)該得到高分而不是零分,于是和老師協(xié)議邀請第三方公正的我解決問題。

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I laughed and pointed out to my colleague that we must admit that the student really had a pretty strong case for full credit since he had indeed answered the question completely and correctly. On the other hand, I could also see the dilemma because if full credit were given to him it could mean a high grade for the student in his physics course. A high grade is supposed to prove competence in the course, but the answer he gave did not show his knowledge on the subject. "So, what would you do if you were me?" Jim asked. I suggested that the student have another try at answering the question. I was not surprised that my colleague agreed, but I was surprised that the student did, too. I told the student that I would give him six minutes to answer the question. But I warned him that this time his answer should show some knowledge of physics. He sat down and picked up his pen. He appeared to be thinking hard. At the end of 5 minutes, however, I noticed that he had not put down a single word. I asked him if he wished to give up, but he said no. He had not written anything down because he had too many possible answers to this problem. He was just trying to decide which would be the best one.
我不禁大笑,然后告訴我的同事我們必須得承認(rèn)這個學(xué)生有充分的理由拿到滿分,因為他的答案非常正確和完整。但另一方面,我同樣感覺到這樣判斷讓我處于兩難境地,如果給了他滿分就意味著在這個學(xué)生在物理科考試上很高分。一個高分就會拉開他在這門課和別人的距離,并且獨(dú)顯優(yōu)異,但是他給的答案并沒有運(yùn)用到物理知識,顯示不出他對這門課的掌握程度?!澳敲?,是你的話你會怎么做呢?”吉姆問我。我建議讓那個學(xué)生嘗試用另外一種辦法解決那個問題。我一點(diǎn)也不驚訝我的同事會接受我的建議,但我很驚訝那個學(xué)生也接受了我的建議。 我告訴那個學(xué)生我會給他六分鐘來完成這道題目,但我強(qiáng)調(diào)說這回他必須運(yùn)用一些物理的知識來完成。他坐下來,把筆拿在手上??雌饋硭伎嫉梅浅UJ(rèn)真。在最后五分鐘,我發(fā)現(xiàn)他一個字都沒寫。我問他是不是打算放棄。他說不,他之所以一個字都沒有寫是因為有太多的方法有可能解決這個問題,他只是在想哪個方法是最好的。