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題 名 | 發展紙筆測驗以探究高三學生對化學平衡的迷思概念 |
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作 者 | 蔡玟錦; 陳瓊森; | 書刊名 | 科學教育 |
卷 期 | 3 1992.04[民81.04] |
頁 次 | 頁149-174 |
分類號 | 523.7334 |
關鍵詞 | 化學; 平衡; 紙筆; 迷思; 高三; 測驗; 發展; 概念; 學生; |
語 文 | 中文(Chinese) |
中文摘要 | 為了探究高中學生對化學平衡有那些迷思概念,本研究首先編製開放 式問答測驗卷,要求學生預測現象,並說明所根據的理由,然後,經由學生的回 答作歸類,將學生常有的迷思概念分出類型,再正式編製成以二段式選擇題為主 的封閉式測驗卷。受試樣本篇台游省中部地區的240名高三自然組學生。題目難 度的範圍在0.30-0.85,題目鑑別度的範圍在0.18-0.80,庫李信度為0.84。另外, 由樣本中抽選學生28名,進行結桔性晤談,得紙筆測驗結果與晤談結果的一致 性為0.68。根據本研究封閉式測驗的結果,學生在化學平衡概念最常產生的迷思 概念陳述如下:1.當置入反應物,開始進行反應之初,逆反應速率不為零。2.正反 應速率與逆反應速率的比值等於平衡常數。3.催化劑與反應物所形成的新活化錯 合物的位能比原先的活化錯合物位能可能升高,也可能降低。 |
英文摘要 | The purpose of this study is to develop a paper-pencil testand assess the senior high school students' misconceptions onchemical equilibrium. First, a paper- pencil test which consists of open-endedquestions was developed. Students' misconceptions wereidentified by their responses to open-ended paper- pencilquestions. Then a two-tier test was developed based onstudents' reasons for their choice as well as on informationgathered from the open-ended paper-pencil questions. Thefirst part of each item on the test is a multiple choice questionconcerning chemical equilibrium which asks students topredict what will happen. The second part of each questioncon2ains a set of three or four possible reasons for the answergiven to the first part. Two hundred and forty 12th grade students in centralTaiwan who had studied chemical equilibrium were examined.Dif- ficulty indices of the test range from 0.30 to 0.85,discrimination indices range from 0.18 to 0.80, and Kuder-Richardson reliability is 0.84. Of 240 students who tookpaper-pencil test, 28 were selected for interview. The resultindicates that 68 of students' responses to interview areconsistent with their answers on 'paper-pencil test. The most significant misconceptions revealed by the studyare: 1. Before the reactors begin to react, the rate of the reverse reaction is initially non-zero;2. The ratio of the rate of the forward reaction 'to the rate of the reverse reaction equals to the equilibrium constant;3. The potential energy of a nev activated complex which was formed from the catalyst and the reactor may be more or less than the potential energy of original activated complex. |
本系統中英文摘要資訊取自各篇刊載內容。