• Journal of Preventive Medicine and Public Health
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• v.32 no.1
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• pp.1-8
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• 1999

Objectives. We conducted this study to obtain basic data of urinary levels of arsenic, cadmium, and zinc in children of Ulsan industrial area and to evaluate the difference in urinary levels of these metals between industrial area and suburban area. Methods. The study subjects were composed of 348(male 182, female 166) school children residing in industrial area and 100(male 50, female 50) school children of suburban area. We analyzed urinary levels of arsenic, cadmium, and zinc using atomic absorption spectrophotometer. Results. The geometric means of urinary level of arsenic, cadmium, and zinc of study participants were 3.69, 0.99, $282.49{\mu}g/l$ respectively. The adjusted geometric means of urinary levels of arsenic, cadmium, and zinc of study participants were 3.92, 1.05, $299.92{\mu}g/g$ creatinine respectively. Conclusions. The children residing in industrial area had the higher urinary levels of arsenic and cadmium than suburban children with statistical significance(p<0.01).

• Journal of Elementary Mathematics Education in Korea
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• v.16 no.3
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• pp.451-469
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• 2012

This research intends to examine how 6th graders (age 12) conceptualize the area of geometric figures. In this research, 4 problems were given to 122 students, which the 4 problems correspond to understanding area concept, finding the area of geometric figures-including rectangular, parallelogram, and triangle, writing the area formula for finding area of geometric figures, and explaining the reason why the area formula holds. As the results of the study, we identified that students revealed the most low achievement in the understanding area concept, and lower achievement in explaining the reason why the area formula holds, writing the area formula, finding the area of geometric figures in order. In based on the results, we suggested the didactical implication for improving the students' conception about the area of geometric figures.

• Communications of Mathematical Education
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• v.15
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• pp.77-86
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• 2003

초등학교 영재들은 여러 사설 교육기관이나 국립기관 그리고 개인 교습을 통하여 많은 양의 선수학습을 행하고 있다. 이들 중 일부는 방법과 이유를 아는 관계 이해를 하기보다는, 주어진 규칙을 적용하여 정답을 찾아내는 도구적 이해를 하고 있다. 그들은 수학을 능동적이기보다는 수동적인 입장에서 받아들이기에 새로운 수학적 지식을 창출하지 못하는 성향을 강하게 보이고 있다. 이에 본 연구자는 이러한 문제의 해결을 위해 초등학교 영재들이 가지고 있는 수학적 스키마와 선생님들이 가르치는 스키마 사이의 간격에 초점을 맞추어 연구하였다. 대전에 있는 영재교육기관에 등록된 초등학교 3학년 영재들을 대상으로 하여 연구한 결과, 스키마와 스키마 사이의 간격이 멀수록 학생들이 방법과 이유를 아는 관계적 이해를 하기보다는 주어진 규칙을 적용하여 정답을 찾아내는 도구적 이해를 하고, 그 간격을 줄일수록 수학에 흥미를 느끼고 고학년의 수학내용까지도 스스로 파악하고 이해하려는 성향이 나타난다는 사실을 발견하게 되었다. 그 간격이 적을수록 학생들은 교사로부터 학습받은 내용을 자신의 지식으로 재구성하여 새로운 문제에 적용을 쉽게 하였다. 본 발표에서는, 학생들의 수학적 스키마와 선생님들이 가르치는 스키마 사이의 간격을 줄이는 것이 학생들이 수학을 관계적 이해를 하는데 큰 도움을 줄 수 잇음을 보이려고 한다.

• Journal of The Korean Association of Information Education
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• v.26 no.6
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• pp.481-490
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• 2022

With the development of computing technology, the big data era has arrived, and we live with a lot of data around us. Elementary school students are no exception. Therefore, it is very important to learn to process data from elementary school. Since elementary school students have intuitive thinking, data visualization, which expresses data directly in pictures, is an important learning element. In this study, we study how effective elementary school students can visualize data in their daily lives to improve their information processing capabilities. Adata visualization program was developed by organizing and visualizing data using data visualization tools for the 8th class, which can be done by third graders in elementary school, and then experiencing the process of interaction. As a result of applying the developed program to 186 students in 7 classes, knowledge information processing competency factors were evaluated before and after class. As a result of the pre- and post-test, there was a significant difference in knowledge information processing capabilities. Therefore, the data visualization program developed in this study is effective.

• Journal of the Korean Society of Food Science and Nutrition
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• v.35 no.6
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• pp.809-814
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• 2006

The satisfaction of elementary school children and their parents with the school lunch program by foodservice system was assessed by questionnaire. The subjects Participated in this survey were 1,136 students, first-6th grade elementary school children and 1,140 parents in Seongnam area. The result was as follows: the satisfaction score for school lunch program by foodservice system was rated as 'high'. Students' and parents' satisfaction score were 3.63 point and 3.62 point (5-point Likert rating scale), respectively. Difference of satisfaction score by grades was that high grade students were significantly lower than low grade students' (P<0.001). Five grade students' score was 3.23 point and 2 grade students' score was 4.04 point. Children's favorite food types were meat, dessert, cooked rice and fried food. The least preferred food types were green and seasoned vegetable, kimchi, soup and fish. Students felt shortage of favorite foods and a lot of dislike foods. Parents answered that thorough sanitary management (22.5%) and use of good quality foodstuffs (11.5%) were the most important factors in improvement of the school lunch program.

• The Journal of the Korea Contents Association
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• v.16 no.5
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• pp.361-374
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• 2016

The study aims to gain information for developing educational content to support LPSMBs (low-performing students with multicultural backgrounds) in elementary and middle schools. The procedure involved surveying students about their personal characteristics, attitudes related to learning, and learning environment. I analyzed responses from 1,147 students from 200 elementary schools and 3,760 students from 320 middle schools who were LPSMBs and NPSMBs (normally performing students with multicultural backgrounds). LPSMBs in both elementary and middle school showed statistically significant lower scores on most questionnaires related to learning and learning environment than NPSMBs. LPSMBs in elementary schools showed higher scores on teachers' learning support, LPSMBs in middle school showed higher scores on classmates' learning support. LPSMBs born in foreign countries need to be given opportunities to learn Korean as well as their father's and mother's culture. I give suggestions for how to support LPSMBs' learning and learning environment based on the survey results.

• Proceedings of the Korean Information Science Society Conference
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• 2004.10a
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• pp.280-282
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• 2004

초등학교에서 재량활동인 컴퓨터 교재의 내용은 ICT 소양교육을 중점으로 기능 교육(한글, 파워포인트, 윈도우, 통신 등)에 대한 내용이 대부분을 차지하고 있다. 특히 초등학생들은 이미 생활에서 쉽게 접하는 정보화 시스템에 익숙하여 컴퓨터를 다루는 기능은 교재의 수준을 상당히 갖추고 있다. 따라서, 본 논문에서는 현재 초등학교에서 사용하고 있는 초등컴퓨터 재량활동 교재의 내용에 변화가 필요함을 나타내기 위하여, 부산광역시교육청의 초등컴퓨터 재량활동 교재인 '즐거운 컴퓨터'의 내용과 부산광역시 4, 5, 6학년 초등학생들의 ICT 활용기능을 비교 분석하였다. 그 결과를 통하여 초등학생의 ICT 기술능력이 컴퓨터 교재의 내용을 앞서고 있음을 보이고 향후 교재내용의 변화가 있어야함을 보인다

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.31 no.2
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• pp.5-26
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• 2020

This study applied a bibliotherapy program based on play-oriented interaction to lower-graders in elementary school and examined its effect on the ability to adapt to school life. For this purpose, reading therapy research was conducted using research subjects consisting of ordinary second graders in elementary school located in District K, Seoul. Total of twelve ninety-minute sessions of the reading therapy program were implemented in school library once or twice a week. Adaptability to school life was tested before and after the reading therapy program and the Kinetic School Drawing (KSD) test, which was conducted before and after the implementation of reading therapy program. The results of this study can be summarized as follows; First, the reading therapy program based on play-oriented interaction was proven to have a positive impact on overall adaptation of second graders in elementary school. Second, among the sub factors of the adaptability to school life among the second graders in elementary school, reading therapy program based on play-oriented interaction positively affected teacher relation, peer relation, school lesson, and compliance with the school rules.

• Proceedings of the KAIS Fall Conference
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• 2009.05a
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• pp.397-400
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• 2009

본 연구는 국가교육과정에서 문자 교육 입문기인 초등학교 1학년을 대상으로 하여 글자크기와 성별에 따른 가독성 차이를 알아보기 위한 연구로서 초등학교 1학년 학생에게 교과서 본문에 쓰이는 글자 크기는 실제 학습에 있어 가독성에 유의미한지 초등학교 1학년 학생들은 성별에 따라 본문 읽기는 어떤 다른 가독성 효과를 보이는지에 대하여 살펴보았다. 본 논문 주제에 대한 접근방법으로 먼저, 가독성의 개념, 가독성에 영향을 미치는 요소, 가독성 측정방법에 대한 고찰과 함께 초등학교 1학년 교과서 본문 글자 크기와 성별에 따라 가독성이 어떻게 달라지는지에 대하여 실험을 통하여 검증하였다. 초등학교 1학년 대상으로 글자 크기에 따른 가독성 차이를 살펴봄으로써 현행 교과서의 체제 개선에 필요한 기초 자료를 마련하고 성별에 따라 가독성 효과가 어떻게 차이가 나는지 살펴봄으로써 성별에 따른 남녀의 언어 발달 차이에 대한 이해와 성별에 따른 읽기 지도 전략에 시사점을 제공하고자 한다.

• Journal of Elementary Mathematics Education in Korea
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• v.21 no.3
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• pp.461-483
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• 2017

The ability to think mathematically and to reason inductively are basics of logical reasoning and the most important skill which students need to acquire through their Math curriculum in elementary school. For these reasons, we need to conduct an analysis in their procedure in inductive reasoning and find difficulties thereof. Therefore, through this study, I found parts which covered inductive reasoning in their Math curriculum and analyzed the abilities and characteristics of students in solving a problem through inductive reasoning.