職前教師潮汐迷思概念之探討

The research of misconceptions about tide held by preservice teachers

陳盟翔(Chen Meng-Shiang)

指導教授 ： 李田英

國立臺灣師範大學/理學院/科學教育研究所/碩士(2002年)

摘要

本研究目的為探討職前教師有關潮汐現象之迷思概念，以及不同學科背景與學系的職前教師對潮汐現象的理解情形。共有三所國立大學241位職前教師參與研究。研究採問卷調查法，並施以訪談。研究工具為自行開發之「國中職前教師潮汐概念問卷」，經三位專家審查修正工具，而重測信度為.77。資料除做描述性統計外，還有變異數分析，並針對問卷特定選項訪談職前教師。研究發現職前教師的潮汐迷思概念可分為以下三類：（1）引潮力：背對月球之地表海水凸出是因為月球萬有引力或地球自轉向心力的影響；（2）乾潮與滿潮：背對月球與太陽的地表海水會發生乾潮現象及太陽與月球需在地球的同一端才會發生滿潮；（3）影響潮汐大小與時間之因素：海水面降到最低者稱小潮及大潮的發生原因是地球位於近日點且月球位於近地點上。在潮汐現象的瞭解上，修習過海洋學、海洋學概論或物理海洋學任一科目的職前教師顯著優於未修習過這些科目的職前教師（p＜.04）。地球科學系的職前教師顯著優於其他各學系的職前教師（p＜.04）。

關鍵字

潮汐迷思概念 ； 職前教師

並列摘要

Investigated were the misconceptions of tide of perservice teachers with different science background and science majors. There were 241 perservice teachers from three national universities involved. Survey and interview methods were adopted. 「The Test of Tide for Perservice Teachers of Jounior High School」 was developed by the author. The tool had been evaluated by three experts. The test-retest reliability was .77. Data was analized through descriptive statistic and ANOVA. Some preservice teachers were interviewed for specified items. The results showed there were three type of misconceptions about tide held by preservice teachers as follows：（1）tide-generating force：the gravitation from the moon or centripetal force from the earth rotation makes the sea level higher on the surface of the earth which is not facing the moon；（2）low tide and high tide：the sea level on the surface of the earth which is not facing the moon and the Sun was low tide and when the moon and the Sun were the same direction, the sea level on the surface of the earth was high tide；（3）the factors affected the size and the time of tide：the sea level on the surface of the earth was the lowest called neap tide and when the earth was at perihelion and the moon was at perigee, the sea level on the surface of the earth called spring tide. Preservice teachers who had studyed one of oceanography、the introduction of oceanography or physical oceanography understood tide sigificantly better than those who did not have the above courses（p＜.04）. Preservice teachers majored in earth science understood tide significantly better than other majors（p＜.04）。

並列關鍵字

tide misconception ； preservice

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