• Education of Primary School Mathematics
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• v.1 no.1
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• pp.45-58
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• 1997

초등학교 아동은 교육과정을 이수하면서 수 영역에서 자연수, 정수, 그리고 양의 유리수까지 학습하게 되어 있다(교육부, 1992). 초등학교에서의 유리수는 분수ㆍ소수를 의미하는 소박한 의미의 유리수를 의미한다. 여기서 유리수는 자연수와 정수를 포괄하는 수 체계적 의미로서 포함관계가 강조되지는 않는다.(중략)

• Journal of Educational Research in Mathematics
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• v.15 no.1
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• pp.21-38
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• 2005

The purpose of this research is to develop a probability program based on the actual condition of understanding of probability by the elementary school students from 3rd to 6th grade and search for ways to apply it to the 3rd grade of elementary school students. Based on the results from the research, the author reached a conclusion as following. After applying the learning program to five students of 3rd grade, all of the five students made progress understanding the concept of experimental and theoretical probability. However, for understanding the concept of example space, only two leading students were improved, which shows that students are having much difficulty in understanding the concept. As for under-standing the concept of experimental probability, many students gained the conceptual difference between the experimental and theoretical probability after using the program and enhanced their understanding of experimental probability.

• 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.

• Journal of The Korean Association of Information Education
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• v.24 no.6
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• pp.529-537
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• 2020

Scratch is Educational Programming Language, and it has been widely used in Elementary school SW Education. Many studies show that Scratch education is helpful for students' computational thinking and problem solving. However, the lower grade students use scratch less than the higher grade students, and the higher grade students have difficulty in understanding basic programming principles such as sequence, repetition, and condition. Therefore, in this study, we developed Scratch electronic blocks and programming education curriculum. We had classes for 2nd grade and 6th grade students, and it was confirmed that the score of 2nd grade students' interest about programming increased from 3.28 to 3.58 and 6th grade students' interest increased from 3.41 to 4.09. As a result of the programming basic principles understanding assessment, 84% of the 2nd grade students solved more than 7 of the 9 questions and 62% of the 6th grade students solved more than 7 of the 9 questions.

• Journal of Elementary Mathematics Education in Korea
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• v.11 no.1
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• pp.61-80
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• 2007

Korea and Japan are close countries having a mutual influence on history and have similar cultural and educational circumstances. The purpose of this study was to compare and analyze the textbooks for elementary school mathematics between Korea and Japan. First, it established the theoretical backgrounds through the precedent research comparing the mathematic textbooks between South Korea and North Korea, Korea and India, Yanbian in China, Japan( Fraction part in numeral field. The Plane Figures). Next, it compared and analyzed two countries'(Korea and Japan) textbooks regarding the structural system and concept of units on the basis of the theoretical research. And it included more specific and detail contents in comparison of Korean with Japanese mathematic textbooks focused on the 5, 6th grade.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.6
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• pp.41-50
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• 2020

The purpose of this study was to identify latent classes in school readiness which were measured by both parents and teachers, and to test the relationship with school adaption, academic abilities, problematic behaviors, self-esteem, and happiness. Latent Profile Analysis (LPA), MANOVA, and one-way ANOVA were conducted using the data of 1,154 1st to 3rd grade elementary school students, and the data was collected between the 7th year (2014) to the 10th year (2017) from the Korean Children and Youth Panel Study. The results of study were as follows. First, four school readiness groups were identified: the consistent low group, parent perceived high group, the teacher perceived high group, the consistent high group. Second, the consistent high group and the teacher perceived high group showed relatively better academic abilities and school adaption than the consistent low group. Furthermore, the consistent high group showed higher academic abilities, self-esteem, and happiness, but lower problematic behaviors than the consistent low group. The findings of this study could be utilized as preliminary data for understanding school readiness to promote successful school adaption and psychological well-being of children.

• Journal of The Korean Association of Information Education
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• v.26 no.1
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• pp.1-10
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• 2022

With the development of artificial intelligence, society is moving toward another world that has never existed before. As a result, interest in artificial intelligence education is also increasing, and research on artificial intelligence education is being conducted more actively in Korea. However, many studies have been conducted focusing on the upper grades of elementary school, and curriculum and programs for the lower grades are still insufficient. Therefore, in this study, a total of 6 sessions of artificial intelligence programs were developed to understand image recognition for the lower grades of elementary school. The validity was secured by conducting expert validity for 8 experts, and the effectiveness was verified through the pre-post-response sample t-test by applying it to the experimental group. As a result, both artificial intelligence understanding and artificial intelligence attitude showed statistically significant results, and both the interest and difficulty of educational programs were found to be suitable for lower grade students. Based on the contents of this study, it is necessary to review its application and effectiveness in various environments through follow-up studies in the future.

• Clinical and Experimental Pediatrics
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• v.50 no.4
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• pp.381-385
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• 2007

Purpose : Traditional herbal medicines may be overused in Korea. Expenditures and inaccuracies of hospital prescription are increasing gradually. So we investigated the frequency and nature of herbal medicine use among elementary school pupils. Methods : We interviewed students of three elementary schools located in Gwangju with survey papers. We analyzed 905 returned surveys. Results : They consisted of 421 males and 484 females. Five hundred ninety (65.2 percent) of pupils who have taken herbal medicines since birth. First grade made up 74.1 percent, 2nd grade 63.0 percent, 3rd grade 64.8 percent, 4th grade 63.3 percent, 5th grade 65.5 percent, and sixth grade 61.9 percent, respectively. The mean frequency of herbal medicine use was 3.2 times. 6th grade was 3.3 times, 5th grade 3.9 times, 4th grade 3.7 times, 3rd grade 2.7 times, 2nd grade 2.7 times, and 1st grade 2.6 times, respectively. The mean cost of herbal medicine use was from 50,00-100,000 won. The mean age of pupils who took their 1st herbal medicine was 55 months, 6th grade 67 months, 5th grade 58 months, 4th grade 54 months, 3rd grade 55 months, 2nd grade 51 months, and 1st grade 47 months. The most common reason of herbal medicine use was "looking weak, without disease." The rate of elementary pupils who had good effects was 63.7 percent; the rate of side effects was 4.5 percent. Conclusions : The rate of elementary pupils who took herbal medicines was high and gradually higher in lower grades. So, clinicians have to cope directly with this situation and to educate parents about herbal medicines.

• Journal of The Korean Association of Information Education
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• v.8 no.3
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• pp.433-446
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• 2004

We must know computer terms to use, learn, and understand efficiently. It is important for the elementary school students who learn computer for the first time to understand computer terms correctly. This study investigates a computer terms in the elementary school computer textbook which have been used currently at the elementary school, selects suitable computer terms for the elementary school student, analyzes and classifies them as a 1 2th grade, a 3 4th grade, 5 6th grade by the elementary school computer curriculum, and also classifies those as information ethics, computer basic, application software, computer communication by the category. The expectations of this study are as follows. First, the result of this offers teacher to a computer terms guidance for usability which is essential to elementary school's computer class. Second, this can be used as a reference in making a elementary computer textbook or studying and training textbook for teachers. Third, this offers teachers to an important criteria when they select a computer textbook for elementary student in elementary school.

• Journal of Korean Library and Information Science Society
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• v.42 no.3
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• pp.293-309
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• 2011

This study examined elementary students' reading attitudes to identify the state of feeling related to reading. For this, 523 elementary students from the forth to the sixth of 'model schools for reading' participated and completed questionnaires. The results show that the average score of reading attitudes was 3.8 out of 5, and there were differences between schools, gender and grade levels. Girls' reading attitudes were more positive than boys and sixth-grade students' reading attitudes were the most negative of all grades. The students' attitudes of the school which emphasized reading for pleasure were better than that of reading for academic achievement.