• Communications of Mathematical Education
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• v.3
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• pp.275-295
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• 1997

• Journal of Practical Engineering Education
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• v.7 no.2
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• pp.107-112
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• 2015

In this paper, it was investigated academic achievement whether any differences in accordance with the teaching methods in the materials processing section in 'technology and home economics' curricular. Target groups were compared to the eighth grade and ninth grade junior high school. Both eighth and ninth grade were selected for the first time learning the material processing section. The eighth grade was lessoned using the educational media, but the ninth grade was lessoned using writing. The results from the six questions, in one educational media utilization class got 71.1% correct answers, the other groups got 45.3% correct answers. The average percent correct differences between the two groups showed 25.8% points improvement in academic achievement.

• The Journal of the Korea Contents Association
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• v.20 no.6
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• pp.531-544
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• 2020

The purpose of this study is to analyze tasks for mathematical competencies in the 8th grade mathematics textbooks based on the 2015 revised mathematics curriculum. And our study is based on the distribution of competencies of tasks for mathematical competencies in the 8th grade mathematics textbooks The results of this study were as follows. First, there are distributed in order, in general, geometry unit, letter expression unit, function unit among 8th grade mathematics textbooks for mathematical competencies. Second, there are unbalanced distribution of mathematical competencies among in 8th grade 'mathematics' textbooks. Lastly, there are comprised of textbooks focused on specific elements among subelements of tasks for mathematical competencies in the textbooks.

• Journal for History of Mathematics
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• v.24 no.4
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• pp.97-118
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• 2011

This study aimed finding effective models for the teaching the concept of function. We selected two models. One is discrete model which focuses on the 'corresponding relation of the elements of the sets(domain and range). The other is continuous model which focuses on the dependent relationship of the two variables connected in variable phenomenon. A vending machine model was used as a discrete model, and a water bucket model was used as a continuous model in our study. We taught 2 times about the concept of function using two models to the 60 students (7th grade, 2 classes) living in Taebak city, and tested it twice, after class and about 3 months later. A vending machine model was helpful in understanding the definition of function in the 7th grade math textbook. Also, it was helpful to making concept image and to recalling it. On the other hand, students who used the water bucket model had a difficultly in understanding the all independent variables of the domain corresponding to the dependent variables. But they excelled in tasks making formula expression and understanding changing situations.

• Journal of Educational Research in Mathematics
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• v.23 no.3
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• pp.389-406
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• 2013

The purpose of this study is to analyze eighth grade students' errors in the constructed-response items to improve teaching and learning of mathematics in schools. By analyzing 99 students' responses to nine constructed-response items, we found several types of students' errors in their responses to the assessment items involving with mathematical reasoning and representations, problems within realistic contexts, and mathematical connections. Not only a single error but also multiple errors (a combination of two or more types of errors) were discovered. In particular, high achieving students showed more simple errors than multiple errors while low achieving students had more multiple errors in various kinds.

• Communications of Mathematical Education
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• v.23 no.3
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• pp.523-543
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• 2009

We conduct a survey to find out the academic achievement factors for 484 second grade students at two middle schools in Busan city and Kyungsangnam Do, respectively. The survey questionnaire includes home environment and background, students' personal character, relationships with friends, learning attitudes towards improving problem solving, variables related to teaching methods and teachers, the school's computer facilities, mobile class by students levels, private education current situations, etc. Private education current situations are presented according to regions. Based on survey data we perform factor analysis to find major factors affecting mathematics academic achievement. We analyze the characteristics of the major factors. We also propose basic data and implications to mathematics educators and mathematics teachers at middle schools for improving middle school mathematics education quality.

• Journal of The Korean Association For Science Education
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• v.24 no.6
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• pp.1256-1271
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• 2004

The importance of science attitudes is more increasing in science education. Science attitudes may influence students' attainment, consistency and quality of classwork as well as their later views of science education and scientific occupations. According to the international comparative researches and longitudinal studies on Korean students' science attitudes, it has shown that the more grade, the less science attitude. This research was survey the science attitudes and learning environment variables, and then make a inquiry that causes of decline of science attitudes. To study this purpose, the participating students in this study will be selected from 3th to 11th grade. 6,925 participants were administered 3 times in questionnaires of science attitudes and learning environment variables during a year. The result of this study showed that science attitude got low after June. Science attitude was changed from 4th grade to 8th grade students. Science attitude much more decrease second semester than first semester, high school students' science attitude fell much. It was experience about science that cause the biggest effect in science attitude and other learning environment variables influence in science attitude change. Learning environment variables made different influence from students of increased and declined science attitude. As category that influence in science attitude, in elementary school were gender, area and grade, in middle school were grade and area, and in high school was area.

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2007.05a
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• pp.565-569
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• 2007

제주지역 중학교 학생들의 환경문제 및 환경교육에 대한 인식 및 실태를 파악하고자 하였다. 전국 중학교 환경교과 선택현황을 지역별로 비교해보면, 부산 55.4%, 충북43.9%, 대구 21.7%, 제주 11.9% 순으로 부산이 가장 높은 선택율을 보였고, 그 외의 지역에서는 환경교과를 선택하는 비율이 모두 10% 이하로 나타났따. 제주도에는 전체 42개(제주시 27, 서귀포 15)의 중학교가 설립 ${\cdot}$ 운영되고 있으며, 그 중 제주시에는 3개교에서만 환경교과를 선택 과목으로 가르키고 있었다. 환경문제에 대한 정보습득 방법으로 전체 응답자의 70.2%가 TV, 라디오, 신문 등 언론 매체에 의해서 습득하였고, 학교교육에 의해서 습득한 경우는 1.5%로 극히 미비하여 학생들이 학교 환경교육보다 언론 매체를 통하여 환경문제를 인식하고 있는 것으로 나타났다. 정보추구의식으로 언론매체를 이용한 환경관련 프로그램의 시청 여부를 살펴보면, 보편적으로 여학생이 남학생보다, 그리고 저학년일수록 환경 프로그램을 관심있게 보는 것으로 나타났다. 그리고, 환경문제의 지식정도를 살펴보면, 전체적으로 평균 3.21개의 용어를 설명할 수 있다고 표시하여 대다수의 학생들이 이들 용어들을 모르고 있는 것으로 나타났다.

• Journal of Korea Entertainment Industry Association
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• v.15 no.7
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• pp.97-106
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• 2021

The purpose of this study is to investigate the effects of peer attachment, self-esteem, and school life adjustment on the sense of community in the first grade of middle school adolescents. This study utilized the Korean Children and Youth Panel Survey(KCYPS) data(7th, 2016) to get more comprehensive and objective research result. A total of 2,000 subjects were included in the study. For statistics on the collected data, descriptive statistics, t-test, ANOVA, Pearsons' correlation and multiple regression analysis were performed using IBM SPSS statistics version 23.0. As a result of the study, the statistically significant variables affecting the sense of community in the first grade of middle school, were peer attachment and school life adjustment. The variable identified as having the greatest influence was school life adjustment. In order to inspire a sense of community, priority should be given to promoting school life adjustment.

• Journal of The Korean Association For Science Education
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• v.38 no.5
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• pp.625-633
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• 2018

The goal of this study is to investigate the features of Korean eighth graders' achievement and its trend in Chemistry in TIMSS 2011 and TIMSS 2015, and to explore its implications for Korean science curriculum and in teaching science. With three science educators and six science teachers, we analyzed the characteristics of Korean eighth graders' achievement in Chemistry by test-curriculum matching analysis. According to the trend analysis of science topics with released items for Chemistry in TIMSS 2015, Korean students' percentage for correct answers has dropped in topics such as regularities in chemical reactions, oxidation-reduction, etc. since these topics are covered after the ninth grade in the 2009 revised curriculum. For science cognitive domains, Korean students showed weaknesses in 'applying' domain in TIMSS 2015. Based on the results, we suggested implications for improvement in middle school chemistry curriculum and how to improve science teaching and learning for students' better science competencies and real-world application of science knowledge.