• Journal of the Korean School Mathematics Society
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• v.16 no.2
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• pp.363-381
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• 2013

The constituents of math learning styles are information recognition and information processing in the cognitive domain and attitudes toward math learning and environments of math learning in the affective domain. Each of the constituents has two opposing styles; there are the visual style and verbal style in information recognition; and there are the whole style and analytical style in information processing. And as for attitudes toward math learning, there are two styles which are the authoritative and goal-oriented style and the practical and entertaining style. Also as for attitudes toward environments of math learning, there are two styles which are the interior-oriented style and exterior-oriented style. There can be classified into 16 types of mathematics learning by the combination of a total of 8 styles of mathematics learning. The purpose of this study was to analyze the preference of the students from three middle schools located in Daegu Metropolitan City to the styles and types of mathematics learning.

• Journal of Educational Research in Mathematics
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• v.26 no.4
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• pp.683-700
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• 2016

The traditional teaching-learning in mathematics, which pursue only one correct answer, should be reexamined to cope with an age of uncertainty. In this research, Perry's epistemological development scheme was noticed as a theoretical approach to diagnose problems of dualistic mathematics lessons and to search solutions of the problems. And Design-Based Research method was adopted, We developed the epistemological development scheme through considering Perry's theory and related studies, scaffoldings and teaching-learning to enhance students' epistemological positions in mathematics. Based on these discussions we designed teaching experiment about operations with negative numbers, and analyzed its didactic implications.

• Journal of the Korean Chemical Society
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• v.47 no.2
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• pp.165-174
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• 2003

The purposes of this study were to investigate the correlation between the cognitive level and the probabilistic thinking level and to analyze the effects of the probability activities in Thinking Science (TS) program on the development of probabilistic thinking. The 219 7th grade students were sampled in the middle school and were divided into an experimental group and a control group. The probability activities in TS program were implemented to the experimental group, while only normal curriculum was conducted in the control group. The results of this study showed that most of 7th grade students were in the concrete operational stage and used both subjective and quantitative strategy simultaneously in probability problem solving. It was also found that the higher the cognitive level of the students, the higher the probabilistic thinking level of them. The sample space and the probability of an event in the constructs of probability were first developed as compared to the probability comparisons and the conditional probability. The probability activities encouraged the students to use quantitative strategy in probability problem solving and to recognize probability of an event. Especially, the effectiveness was relatively higher for the students in the mid concrete operational stage than those in any other stage.

• Journal of Korean Home Economics Education Association
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• v.23 no.1
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• pp.53-71
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• 2011

The purposes of this study are to examine the middle school student's educational interest and perception of usefulness on the content of the unit of 'Understanding of Adolescents' in Technology Home Economics textbook and analyze the relationships between educational interest and perception of usefulness and factors affecting them. The sample of this study is 521 middle school students living in Seoul, Inchoon, and Kyanggi province. The data are collected using structured questionnaires and analyzed by the descriptive statistics, t-test and One-way ANOVA. The results of this study are as follows. (1) The middle school students perceive that 'Stress Management' in Technology Home Economics textbook is the content of the highest educational interest and usefulness. (2) The factors affecting the degree of educational interest on contents of Technology Home Economics textbook are sex, residence area, age of mother, education level of parents, and level of Home Economics subject matter. (3) The perception of usefulness on the contents of Technology Home Economics textbook is differed by sex, residence area, age and education level of mother, and preference level of Home Economics subject matter. (4) There are strong positive relationships between educational interest and perception of usefulness on the contents of Technology Home Economics textbook. (5) Several recommendations for teaching-learning strategies to enhance the students' educational interest and perception of usefeulness on the contents of Technology Home Economics textbooks and future studies are suggested based on the results.

• Journal of Korean Home Economics Education Association
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• v.21 no.1
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• pp.123-139
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• 2009

This study was to investigate the body perception and dietary attitude of adolescents in relation to self-esteem. Total of 1,030 middle school students in Bucheon were participated. Data were collected from July 14 to 21, 2008. by questionnaire, and analyzed by the SPSS V. 12.0 program. The research findings were summarized as that there was considerable mismatch between perceived body shapes and actual obesity status of the subjects, 52% of the boys, 36% of the girls, and 43% of the total participants, which indicated that perception of own body shapes was distorted. The girls and obese group tended to be more unsatisfied with their body weights than boys and underweight group, respectively. The dietary attitude scores were higher in boys than girls in all obesity groups, with the obese girls the lowest score. There were differences in self-esteem scores among the obesity groups with the underweight group the highest and the obese group the lowest. Self-esteem scores of boys were higher than girls in all 4 obesity groups. The body perception and dietary attitude were correlated with self-esteem in both boys and girls. It is shown that the more negative perception on their body shape, and the worse dietary attitude they had, the lower self-esteem both the boys and girls had.

• Journal of the Korean Society of Food Science and Nutrition
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• v.46 no.11
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• pp.1397-1407
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• 2017

The aim of a school attendance policy (SAP) is to ensure breakfast time for school-aged adolescents. Therefore, this study investigated the effects of SAP on dietary behavior, particularly breakfast consumption, among adolescent middle school students (n=426) in the Ansan area of Gyeonggi-do. After implementation of the SAP, the response rates for eating breakfast every-day among boys (P>0.05) and girls (P<0.05) slightly increased by 44.6% and 35.8%, respectively, compared to before the SAP. Further, the degree of satisfaction with breakfast increased among both boys ('satisfied' and 'strongly satisfied'; 32.4% and 21.6%, respectively) (P<0.01) and girls ('satisfied' and 'strongly satisfied'; 32.8% and 14.2%, respectively) (P<0.001) compared to before the SAP. Moreover, boys (56.8%) and girls (53.9%) were aware that the SAP increased breakfast-eating frequency. Increases in deep sleep as a result of the SAP were high in both boys (39.2%) and girls (47.1%), and sleeping hours among boys (P<0.05) and girls (P<0.01) increased compared to before the SAP. The respondents were aware of the positive effects on physical function such as reduction of physical fatigue (boys 40.1%, girls 38.2%) and improvement of physical health (boys 36.5%, girls 32.8%). Thus, systematic and sustained political support at the national level is required to encourage healthy breakfast eating and physical activity in middle school students.

• Communications of Mathematical Education
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• v.9
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• pp.73-81
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• 1999

7차 교육과정을 시행에 앞서, 현재 초등학생들이 수학을 어떻게 생각하고 있으며, 어 떤 이유로 수학에서 학습 부진을 느낄까? 라는 문제의식을 갖게 되었다. 그래서 정규교육의 첫 단계인 초등학교 수학교과에 대한 인식 및 학습 부진에 관한 연구를 시행하고자 했다. 본 연구대상은 대전 ${\cdot}$ 충남 지역에 소재하고 있는 6개 초등학교 6개 반을 선정하여 발달사고과정에서 자신의 생각을 분명하게 나타낼 수 있는 4학년에서 6학년을 연구대상으로 선정하여 교과요인에 대한 설문조사를 하였다. 본 연구는 수학교과에 대해초등학생들이 어떤 생각을 가지고 있고, 어떤 교과요인을 학습하는데 어려움을 느끼는지를 알아봄으로써, 본 연구 결과를 기초로 중학생 ${\cdot}$ 고등학생 ${\cdot}$ 대학생들까지 연속하여 수학교과에 대한 인식을 조사하고 함이며, 새롭게 시행될 7차 교육과정에서의 수학교과 구성면과 수학 학습 및 교수 방법론에 보다 바람직하고 효과적인 시사점을 제공하고자 한다.

• Journal of Korean Home Economics Education Association
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• v.23 no.3
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• pp.19-36
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• 2011

We investigated middle school students' awareness of Han-style(Korean cuture) in order to promote it, and developed and applied the Teaching-Learning Lesson Plan according to the traditional clothing culture contents related to Han Style. We selected 5 major fields representing Han Style including Han-gul(Korean alphabet). Han-sik(Korean food). Han-bok(Korean traditional clothes). Han-ji(Korean traditional paper), and Han-ok(Korean traditional house). We analyzed the contents of the food, clothing and shelter in 6 types of high school testbooks under the revised 7th national curriculum, and chose seven traditional clothing-lifestyle culture contents. Also we developed 14-period processes and materials(9 for teachers. 9 for students and 3 for and applied it to usual classes. The mean score of middle school students' awareness of Han Style in the post-test was significantly higher than that in the pre-test. Students evaluated it positively that the classes could raise the pride on the Han-culture and provoke the interest in it through the direct experiencing activities. We suggest that the various themes on Han-style should be developed, and the theoretical classes on the identity as well as the experiencing activities on it.

• Journal of the Korean earth science society
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• v.34 no.7
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• pp.727-737
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• 2013

The purpose of this study was to investigate the middle school students' perception and their learning satisfaction in SMART learning based science instruction. Three types of modules on the solar system and lunar phases unit at the middle school level were developed and lessons on each module were taught to 207 student participants. All participants were provided with tabletPC(iPad2) with iOS5 installed, and using astronomy app Solar Walk, mirroring function, QR code, and Google Presentation, the lessons were carried out both in classroom and at home. The instrument for assessing students' perception on the SMART learning-based instruction was developed based on 4 factors including Self-directed, Motivation, Adaptiveness, and Technology Embedded, with a Likert scale from 1-5 on 20 items. The learning satisfaction survey instrument was originally from Keller's work (1987), and its test items were adapted and modified. To reveal the perception and learning satisfaction about SMART learning-based science lessons, the participants were comparatively analyzed by gender and science achievement levels. Results indicated that male students showed positive perception for the SMART learning-based instruction. Group with higher science achievement scores showed more positive perception of the SMART learning-based instruction in terms of Self-directed and Motivation factor. Also, the learning satisfaction of male students was higher than female students and group with higher academic ability more satisfied with the SMART learning-based instruction than the low group. The results provide implications for future development of programs and help set a direction of increasing the use of a SMART learning-based science in school.

• Journal of the Korean Chemical Society
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• v.66 no.2
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• pp.96-106
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• 2022

The purpose of this study is to investigate the effect of science-centered convergence class program using realistic contents such as virtual reality and augmented reality on class satisfaction, scientific attitudes and the perception of the gifted students in middle school. After developing the convergence class program including realistic contents using smart devices, we applied it to the gifted students. We analyzed the class satisfaction, scientific attitude and perception of the gifted students through questionnaires. In addition, a survey was conducted on the pre-teachers to investigate and analyze the class satisfaction, scientific attitude of the science class program to students and the perception of science classes using realistic contents. As a result, both students and pre-teachers were positively aware of class satisfaction by science class program using realistic contents. In particular, it was positive in that the class can induce learning motivation and interest. On the other hand, it was pointed out that the low-quality App and lack of infra for smart devices were disadvantages. In addition, pre-teachers lack confidence and information about class using the realistic contents, but they recognize the need of classes using realistic contents for students and education for pre-teachers. Based on this, it obtained suggestions on the preparation of facilities and equipment in schools for future education, development of contents that can be used for convergence class, development of programs and teaching·learning materials using realistic contents, and education for pre-teachers.