• Communications of Mathematical Education
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• v.34 no.3
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• pp.325-354
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• 2020

This study utilized longitudinal data from the 2013 year (Secondary Middle School) to 2017 year (Secondary High School) of the Seoul Education Termination Study. Using the latent growth model and the piecewise growth model, we investigated the changes in mathematics academic achievement, internal factors(self-concept, self-control, self-assessment of life satisfaction), and external factors(school climate, guardians) as students' grades increased, and examined whether internal factors and external factors influence the changes in mathematics academic achievement. We examined whether internal and external factors influence the change in academic achievement. As a result of analysis, it was found that mathematics academic achievement remained unchanged from the first grade of middle school to the second grade of middle school, and steadily increased from the second grade of middle school to the first grade of high school, and then decreased slightly in the second grade of high school. The internal and external factors had little change. It has been found that self-concept, self-control as internal factors, and school climate as external factors influence changes in mathematics academic achievement.

• Journal of The Korean Association For Science Education
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• v.9 no.1
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• pp.101-111
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• 1989

본 연구의 목적은 광합성과 관련하여 한국 국민학교 5학년과 중학교 2학년 학생들이 갖고 있는 오개념을 조사하고, 학생들의 개념이해 정도, 논리적 사고능력, 그리고 학생배경변수들 사이의 상호관계를 조사하는 것이다. 세가지의 도구들이 이 연구를 위해 개발되었다. 광합성 개념검사 (Photosynthesis Concepts Test)는 광합성과 관련된 개념들의 이해를 평가하기 위해, 삐아제의 논리적 사고력 검사(Piagetian Cogical Reasoning Test)는 PCT에 포함된 3종류의 논리적 사고들, 변인 통제, 조합적 사고력, 상관관계 사고능력을 평가하기 위해, 그리고 실문서는 학생들의 배경변수들에 대한 정보를 얻기 위해 개발되었다. 이 도구들은 20명 의 국민학교 5학년, 239명의 중학교 2학년 학생들에게 시행되었다. 이 연구의 결과는 두집단의 학생들이 "먹이를 만든다"는 의미, 먹이의 정의, 식물에 의한 빛의 사용, 식물 뿌리와 잎의 기능들, 광합성 산물, 그리고 광합성을 위한 조건들과 관련하여 오개념을 갖고 있음을 보여 주었다. 국민학교 5학년과 중학교 2학년 사이의 개념 이해의 향상은 식물에 의한 빛 이용의 본질, 한 체계내에서 생물들간의 물질 교환, 포도당, 지방, 단백질 등에 대한 지식에서 보여졌고, 그래프를 해석하는 능력에서 또한 중학교 2학년 학생들이 앞섰다. 향상을 보인 항목들은 교과서에서 보다 많은 강조점을 두거나 상위의 논리적 사고능력을 요구하는 것들이었다. 희귀분석 결과, 전년도 과학성적과 논리적 사고력이 PCT 성취도에 가장 예견력이 높은 두 변수이며 5학년의 경우 성취도의 약 22%의 변량을, 중2의 경우 성취도의 약 40%의 변량을 설명하였다. 후속연구로서 내용의 추상성, 적절성, 그리고 요구되는 논리적 능력면에서 교수조건의 변형을 통한 오개념의 변화와 감소에 대한 실험적 연구가 제시되었다.

• Journal of the Korean association of regional geographers
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• v.11 no.6
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• pp.607-619
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• 2005

For the Unification of Koreas in the future, we need to understand the geography education system of North Korea. This paper deals with the middle-school geography textbooks of North Korea, published in 2000 and as well as in 1990, in order to look for a better way of geography education after the Unification. One geography textbook is used for each grade, respectively, from the first to the fifth grade of the North Korea's middle-school (table 1). The North Korea's geography textbooks are immersed in the unreasonable idolization of the Kim's family and the excessive devotion to the socialist system. But they may suggest a significant implication in the improvement of geography terminology in South Korea because of their common use of genuine Korean words.

• Journal of the Korea Convergence Society
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• v.9 no.10
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• pp.407-414
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• 2018

This study was conducted to examine the depression, study stress, adolescents' problem behavior in middle school students. A cross-sectional survey was conducted. 116 participants were selected from middle school in Y city, J area. A structured questionnaires were used as a study instrument which included general characteristics, children's depression inventory(CDI), study stress and adolescents' problem behavior. Descriptive statistics, independent t-test, one-way ANOVA, Pearson correlation coefficient and multiple regression were used for analysis. the result was that grade level, relation with parents and Friends were major predictors of problem behaviors of male students in the second grade of middle school. As a result of this study, it is to suggest the necessity of guidance, education policy, and program development for the experience and formation of healthy human relationships among adolescents.

• Journal of Elementary Mathematics Education in Korea
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• v.15 no.2
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• pp.417-435
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• 2011

Mathematical justification is essential to assert with reason and to communicate. Students learn mathematical justification in 8th grade in Korea. Recently, However, many researchers point out that justification be taught from young age. Lots of studies say that students can deduct and justify mathematically from in the lower grades in elementary school. I conduct questionnaire to know awareness and steps of elementary school students and middle school students. In the case of 9th grades, the rate of students to deduct is highest compared with the other grades. The rease is why 9th grades are taught how to deductive justification. In spite of, however, the other grades are also high of rate to do simple deductive justification. I want to focus on the 6th and 5th grades. They are also high of rate to deduct. It means we don't need to just focus on inducing in elementary school. Most of student needs lots of various experience to mathematical justification.

• The Journal of Korean Philosophical History
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• no.28
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• pp.117-153
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• 2010

It seems that the education of environment in a discipline of morality has not been systematically given in the middle school. In the Seventh Course of education, the aim of moral education for the middle school has no content concerning environment. And there is no chapter of environment in all the textbooks for the first, second and third grade in the middle school. The content of environment is largely introduced in order to explain a series of key content in the chapters of discussing 'personality', 'courtesy of neighborhood', 'conflict of value', 'civil morality' and so on. Even we can say that its descriptions are aimless, instrumental and secondary for education. Recently, it is no exaggeration to say that the education of environment is not effectively carried out in a discipline of morality of the middle school. In the 2007 revised course of education, there are some content of environment in the aim of morality and its education, and a chapter of "environment and Morality" is newly established. From now on, a new textbook of morality is being made according to the currently revised course of education. It will be gradually useful for the first grade in 2010, for the second grade in 2011, and for the third grade in 2012. It is possible to say that it will add momentum to effectively carrying out the education of environment as part of a discipline of morality in the middle school. Taking it into a detailed consideration, however, the education of environment in this revised course of education cannot help including a serious problem, either. This is because, a chapter of environment is included only in the first grade of middle school, and, according to a prescription of writing criterion established by the Ministry of Science and Technology, there can be no overlapping content for each grade. It will more likely that the education of environment will be given only in the first grade, not in the second and third grade at all. Therefore, it seems to me that, firstly, such a prescription established by the Ministry of Science and Technology will get free, and then the education of environment will be systematically given to the levels of the second and third grade.

• The Journal of the Korea Contents Association
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• v.17 no.11
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• pp.242-251
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• 2017

For the purposes of this research, a corpus of words was created from the English textbooks of the "First Middle School" for the gifted in North Korea, and using the corpus, their linguistic characteristics were analyzed. Although there have been many studies that identified the traits of English textbooks in the North Korea's general middle school, not much focus has been placed on the English textbooks used at North Korea's First Middle School. Initially, the structure of English textbooks of the first, second, fourth, and sixth grades that had been procured from the Information Center on North Korea was reviewed, after which their corpus was created. Then, by using Wordsmith Tools 7.0, linguistic properties and high frequency content words appeared in the English textbook of the first grade were analyzed specifically. Basic statistical data gathered indicated that while the number of vocabulary did not increase as students progress through the grades, the words used tended to diversify incrementally. In the mean time, a distribution of the high frequency content words by grade illustrated that a big difference was found between the content words used in the English texts of each grade, and it was a subject matter of the texts that determined such difference.

• Journal of The Korean Association For Science Education
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• v.28 no.8
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• pp.870-879
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• 2008

The purpose of this study is to investigate laboratory abilities to carry-out experimentations in the field of 'Matter' in middle school science texts. A total of 359 chemistry experiments from 26 textbooks has been analyzed. The authors of this study are interested in what science process skills are required for students to perform the experiments and how often these skills are needed. This article introduced a framework for analyzing the science process skills and their frequency. There are similar patterns of science process skill use among the different grades of middle school texts. The process skills of organizing results, interpreting data and making generalizations are most needed by the order of frequency. However, abilities related to alternative activities and/or conditions show relatively low frequency. For seniors, various laboratory abilities to carry out experiments are needed, whereas abilities for operating and setting up an experimental apparatus are required in freshmen and juniors. These results suggest avenues for science teachers that make lesson plans involving science experiments.

• Journal of Science Education
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• v.44 no.2
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• pp.157-166
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• 2020

In this study, we analyzed the reflection degree of science core competencies, which is presented in second grade middle school science textbooks, and the perception of science core competencies of second year middle school students. To do this, we analyzed the frequency of presentation of science core competencies in middle school second grade textbooks, and surveyed 400 students from three schools in Chungnam area to find out their perception of science core competency. The survey consisted of 15 questions consisting of a five-step Likert scale and 5 ranking questions. The survey analyzed the responses of 327 people who responded faithfully and conducted a post-interview survey to interpret the survey results. The main findings are as follows: First, in the second grade middle school science textbook, the proportion of 'scientific thinking', 'scientific inquiry,' and 'scientific communication' is large, and the students are perceived to have a high proportion of 'scientific thinking,' 'scientific inquiry,' and 'scientific problem solving' in the textbook. Second, students recognize that the proportion of 'scientific inquiry' and 'scientific problem solving' in the evaluation conducted in school was high, and the proportion of 'scientific communication' and 'scientific participation and lifelong learning' was very low. Third, the most important competency in science that students perceive is the 'scientific problem solving,' the competency they wanted most from science is the 'scientific inquiry,' and the competency most needed to live in future society is the 'scientific communication.' Fourth, in the case of 'scientific participation and lifelong learning,' it is an important element of science literacy, but the proportion of consisting science textbooks is low, and students are not aware of the importance or necessity in science.

• Journal of Korean Home Economics Education Association
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• v.27 no.3
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• pp.35-46
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• 2015

This study investigates the level of middle school students' achievement perceptions of the objectives of Home Economics education. A survey was conducted using a convenient sample from 360 middle school students, and 332 subjects were used in the final analysis. First, the level of achievement perceptions of objectives of Home Economics education showed a score of 3.46(SD = 0.80), which was slightly higher than the median. Second, the achievement perceptions of objectives of Home Economics education showed significant differences in gender, the grade level, school type, and the level of school records. Third, according to a hierarchical regression analysis, male students' middle school, coeducational middle school, grade, gender, and school record level had significant effects on their achievement perceptions of objectives of Home Economics education, and the explanatory power of these independent variables was 30%.