[新聞] 台大物理系教授:台大學生擅解題 卻不懂原理消失
台大物理系教授:台大學生擅解題 卻不懂原理
http://udn.com/news/story/9/1963044
台大理學院教授發現,近年入學的大一新鮮人的基礎物理、化學程度越來越下降,學生只
會解題,卻不懂原理,教師上課像在教高中生。台大物理系教授石明豐在一年前開始課程
改革,讓理學院學生學習寫程式,減少紙筆計算,希望翻轉學生的學習程度和態度。
台大物理系教授石明豐從103學年度開始,在大一「普通物理」做課程改革,要求物理系
學生也要像資工系一樣學寫程式,要求學生在計算方程式之前,先把物理原理用3D圖像模
擬出來,再思考如何計算。
「這些上台大的孩子看到方程式『都很會算』,雖是解題高手,卻不懂自己為何要這樣算
。」石明豐說,抽象的物理原理,例如自由落體,球在空間中飛,如何將風阻和方程式結
合,沒有一個學生說得出來,每次剛教大一新生,像在上高中數學課。
石明豐指出,物理的學習難就難在,必須先了解抽象的物理原理,才有辦法理解為何要用
哪些特定的方程式,但目前高中的教學卻只教孩子解題,高三下的數學基礎包含微分方程
、線性代數等沒有學好,一旦升上大學,對於不懂的物理方程式,只得硬用紙筆計算,但
很多學生無法解開繁複的計算,又不懂物理原理,每屆班上都會有三分之一的人跟不上。
因此他讓學生先學寫程式PYTHON ,以3D畫出模擬物理現象,看到具體的原理後就能理解
,「比較有感」,這時候就能以程式套出答案,並減少計算,增加信心。「就像小一學生
乘除法還不會,但給他計算機按按就好,不會妨害他理解。」
利用這個方法,現在的大一新生已經可以理解大三甚至研究所以後才能解開的物理謎題,
還有學生利用3D模擬圖,計算跆拳道選手迴旋踢時在抬腿、踢腿、和轉身的三個動作的速
度方程式。今年開始,石明豐更把把寫程式的課程降低到高中,和建中合作,希望教孩子
學習物理,先從了解現象開始。
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