This study aimed to analyze how the subjects presented in the current curriculum are operated in various ways in high school and how students perceive them in terms of the importance of diversification of high school education. A questionnaire was conducted to achieve the purpose of the study, and the items consisted of 40 questions in terms of class planning, class operation, class evaluation, and school education environment. The survey was conducted using Google's online survey system for

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... 262 high school students nationwide. The main research results are as follows. Although students were found to be generally satisfied with the operation of the elective courses, they responded that they lacked information on subject selection, and needed changes in teaching methods and assessments. In addition, although it was possible to select courses related to career/advanced courses or to take various courses, the respondents said that they lacked the efficiency of opening a small number of subjects or selecting classes. As a result, it can be seen that various materials and environments should be better equipped for more diverse elective courses.