閱讀高中化學教科書後對高一學生所具有之迷思概念影響之研究．．．．．．．．勒沙特列原理

After effect of chemistry textbook reading on senior high schools tenth-graded students misconception -------- Le Chatelier's principle

邱鴻麟(Houn-Lin Chiu) ； 高紹源(Shau-Yuan Kao)

《科學與教育學報》 1期 (1997/05) Pp. 235-257

https://doi.org/10.6449/JSE.199705.0235

摘要

本研究旨在探討高一學生，閱讀高中化學教科書冊第六章第五節『影響化學平衡狀態的因素』後所具有的迷思概念。本研究樣本為五位高一學生，本研究以放聲思考及晤談等方式以質的來分析所蒐集的資料。
研究結果發現：濃度的改變對化學平衡影響方面，高一學生有一個迷思概念，即與平衡移動的方向相同者，其反應速率增加，相反的方向其反應速率減少。然而在壓力和溫度的改變對化學平衡的影響方面，其迷思概念分別為正逆反應的速率都相等，及把溫度視為直接參與反應的因素。
高一學生對微觀世界的不瞭解，進而把學生所接觸之巨觀世界，對抽象概念之微觀世界加以具體化、合理化，以致產生迷思概念。

關鍵字

閱讀 ； 教科書 ； 迷思概念

並列摘要

The study ha investigated tenth-graded students in senior high schools having what kinds of misconceptions after reading chemistry textbook.
Five tenth-graded students in Kaohsiung public senior high schools were chosen as research subjects. The chapter of Le Chatelier’s Principle in the textbook was chosen for subjects’ reading material. The data were collected by methods of interview and analyzed by qualitative method.
The results showed that there were several misconceptions which students had after reading textbook. One was that the rate increased in the direction of equilibrium position that shifted to and the rate decreased in the opposite direction when concentration of substances in the reaction changed at equilibrium. Others’ misconceptions were that temperature was directed involved into the reaction ad the rates of reactions on the both sides of the equation were the same when pressure or temperature changed.
The major reason which caused the misconceptions was that students were unable to understand the abstract concepts of molecular would fully, so they used their prior-experience to materialized the concepts incorrectly.