中等教育中化学计量概念的塑造:希腊小城市地区高中

Christos Papadopoulos, Sotiria Bachtsiavani, Tereza Afrati, P. Akrivos
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引用次数: 0

摘要

一项研究是通过向希腊北部小城市地区的中等教育学生分发两份问卷的方式进行的。问题的内容与化学计量的概念(注1)有关,因为它在教科书中有所介绍,并在希腊中学化学课程中有所描述。这两份问卷分别在学年开始和临近结束时分发,其范围是绘制学生对化学计量学相关概念的同化程度。这个概念在初中没有被引入到相当大的程度,而在高中二年级,当有机化学被明确讨论时,它是主要的话题之一。因此,研究对象是高中二年级的学生。因此,第一份问卷在确定学生对化学概念的整体理解的起点时起到了探索性的作用。问卷的有效性及其在满足当前研究范围的效率是通过应用某些后统计指标进行的,最终目标是将其用作探测学生对化学概念理解的诊断工具。
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Shaping of the Stoicheiometry Concept in Secondary Education: Greek Minor Urban Area High Schools
A study is carried out by means of distributing a pair of questionnaires to secondary education students in minor urban areas of Northern Greece. The content of the questions is related to the concept of stoicheiometry (Note 1) as it is presented in the textbooks and described in the Greek chemistry curriculum for secondary education. The two questionnaires were distributed in the beginning and in towards the end of the school year with the scope of mapping the degree of assimilation of the stoicheiometry related concepts by the students. The concept is not introduced to a considerable extent in junior high-school while it is among the main topics addressed in the second grade of senior high-school, when Organic Chemistry is explicitly discussed. The target group therefore, was students of second grade of senior high-schools. The first questionnaire, therefore, serves as exploratory in the determination of the starting point of overall understanding of chemical concepts by the students. The validity of the questionnaires and their efficiency in fulfilling the scope of the current research was carried out by the application of certain post-statistical indices with the final goal being their utilization as a diagnostic tool for probing student understanding of chemical concepts.
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