國中生平面鏡成像的另有架構之探討

Study on Junior High Students' Alternative Framework of Plane Mirror Image

陳忠志(Chung-Chih Chen) ； 許有亮(Yu-Liang Hsu)

《物理教育》 2卷1期 (1998/04) Pp. 1-14

https://doi.org/10.6212/CPE.1998.0201.01

摘要

本研究旨在探討國中三年級學生對平面鏡成像的另有架構，以瞭解學生平面鏡成像的想法。本研究採筆紙測驗及晤談兩種方式進行，筆紙測驗樣本，採自高雄市某國中三年級學生117位，就學生紙筆測驗結果進行分析歸類，再就各種可能架構選取具代表性12位學生進行晤談，晤談時給予學生實物操弄，以誘導其釋出想法。我們分析了學生紙筆測驗、晤談結果、及理化教師教學，獲得以下研究結果：一、學生對平面鏡成像的另有架構（1）平面鏡成像在眼睛視線的延伸。（2）成像位置在物體發出光線經平面鏡鏡面反射時的反射點上。（3）以像和眼睛的連線來決定能否從平面鏡中看到成像。（4）像要落在視線內，才可在平面鏡中看到成像。（5）平面鏡的成像是物體在鏡面上的影子。（6）學生普遍以一條光線作圖來決定成像位置。二、理化教師對學生的概念學習深具影響力。三、在本研究中的學生普遍缺乏平面鏡成像機制。

關鍵字

迷思概念 ； 另有架構 ； 平面鏡 ； 像 ； 中等教育

並列摘要

This research aims at probing into the alternative framework of the junior high 3rd-graders on plane mirror image.It was conducted through written test and interview surveys on samples of 117 3rd-graders at a junior high school in Kaohsiung City. The test result was first analyzed and categorized students from each category was selected for further interview. During the interview, the students were given real objects for manipulation in order to elucidate their concepts.From the analysis of results of written test and interview, we come up with the following conclusion:1.Student's alterilative frameworks about plane mirror:(1) The image of the plane mirror is on the line of sight.(2) The image is at the surface of the plane mirror where the incident light hits the mirror.(3) The students connect the line between image and eyes to determine whether the image from the plane mirror can be caught sight of.(4) The students use the angle of sight as the criterion to determine if an image can be seen or not.(5) The students confuse the image with the shadow.(6) The students rely on only one line in determining the position of the image.2. The physics teacher plays an important role in the students' concept learning.3. The students don't understand the mechanism how the image is formed.

並列關鍵字

misconception ； altemative framework ； plane mirror ； image ； secondary education