과학과 교육과정 개정에 따른 중등학교 화학 내용 비교 및 계속성에 관한 연구

Abstract

This study aims to investigate the continuity of the contents of chemistry curriculum according to the revised curricula of science. As for research methods, this study carried out an analysis of chapter and content elements of science curricula and a survey with 12th graders in high school. The results of this study can be summarized as below. Firstly, this study found out that due to the revised curricula, the present 11th and 12th graders in high school have hardly leant such content elements as ‘Acid-Base’, ‘Electrolyte’, ‘Ion’, ‘Neutralizing Reaction’ and ‘Indicator’, while the present 10th graders have hardly leant such regularity fields of chemical reaction as ‘Physical Change and Chemical Change’, ‘the Law of Conservation of Mass’ and ‘the Law of Definite Composition’ in addition to ‘Acid-Base’, ‘Neutralizing Reaction’ and ‘Indicator’ from when in the 7th grade in middle school to when in the 10th grade in high school. Secondly, as a result of the survey, this study found out that 10 kinds of content elements with a high degree of learning difficulty in Chemistry I are ‘Neutralizing Reaction’, ‘Amino Acids’, ‘Ionized Energy’, ‘Electro-negativity’, ‘Nucleic Acid’, ‘Oxidation Number’ ‘Ammonia’, ‘Energy Level’, ‘Hydrochloric Acid’ and ‘Electron Pair Repulsion Theory’ in order, and in terms of chapter, students were found to find Chapter about ‘Similar Chemical Reactions’ most difficult. Besides, it was found that the degree of their learning difficulty had a closer correlation with their learning experience of science when in middle school than their learning experience of science when in high school. Thirdly, based on the combination of the results of the analysis of textbooks and the survey with students, this study deduced that their inexperience of learning ‘Acid-Base’ and ‘Electrolyte and Ion’ when in middle school and in the 10th grade in high school accelerates the present 12th graders’ difficulty in learning Chemistry I. Besides, considering the fact that although they have experience of learning some content elements from high school science textbooks, they still have a high degree of difficulty in learning quite many of these content elements, this study found out that the present high school science curriculum by the 2009 Revised Curricula is not well associated with their learning Chemistry I at present.