• International Journal of Advanced Culture Technology
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• v.8 no.3
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• pp.159-165
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• 2020

The purpose of this study is to consider the home environment and awareness of elementary school students in the first grade of elementary school, and to find ways to support them. Participants were 31 1st graders in elementary schools nationwide. Data collection was conducted from June 6, 2017 to July 7, 2017. The focus group interview was used as a data collection method for this study. Results were analyzed as 'The Changing family environment that first graders think' and 'First graders' awareness of elementary school'. 'The Changing family environment that first graders think' include 'Changes in language used by parents', 'Changes in how parents and families live', and 'What to do after school'. 'First graders' awareness of elementary school' was analyzed as 'Awareness of Elementary school life', 'Awareness of peers', 'Awareness of homeroom teacher', and 'Awareness of learning'. As the conclusion of this study, we suggest that because the children have more free time than attending kindergarten, they need quality programs and support plans to support their first grade primary adjustment. Also, we propose a common problem facing first-year students: the difficulty of adjusting to study and support for how to study in an easier way.

• Journal of Korean Elementary Science Education
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• v.33 no.1
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• pp.1-20
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• 2014

This study aimed to find out the current conditions and the characteristics of elementary students' science-related engagement in informal education setting. For this, we conducted a survey targeting 645 $6^{th}$ grader elementary students of three elementary school in Seoul. The results were described as following aspects: first, the place, the engagement frequency, and companies of students' science-related activity in informal setting, second, the characteristics of engagement based on homogeneity analysis. Based on these results, we suggested several ways to encourage students' science-related engagement in informal education setting.

• The Mathematical Education
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• v.45 no.3 s.114
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• pp.345-365
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• 2006

This study, to effectively teach the concepts, principles and problem solving ability of the 2nd graders' learning of numbers and operations, offers realistic problem situation and focuses on the learning based on 'mathematization', one of the most important principles of RME (Realistic Mathematics Education) which is the mathematics education trend of Netherlands influenced by Freudenthal's theory. The instruction is applied to forty-one students of the 2nd grader for six weeks in twelve series in an elementary school, located in Seoul. To investigate the effects of the mathematising experience instruction for improving mathematical abilities, the group takes tests before and after the instruction. Also the qualitative analysis on the students' mathematising aspects through students' output at the instruction process is taken into account to evaluate the instruction's effects. The result shows that the mathematising experience instruction for improving mathematical abilities is proved to improve students' understanding of mathematical concepts and principles and their problem solving ability in learning numbers and operations after carrying out this instruction. Also the result indicates that students' mathematising aspects are mostly horizontal and vertical mathematization.

• Journal of Korean Home Economics Education Association
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• v.7 no.1
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• pp.133-148
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• 1995

Recently, childhood obesity is increasing in Korea mainly due to westernized dietary pattern. The purpose of this study is to investigate diet pattern(habit and behavior), nutritional knowledge and taste favor in normal and obese children. We carried out anthropometries and self questionaire about life style among the 5th-grader in elementary school(88 boys, 102 girls) in Seoul. The results are as follows : Physical conditions are boys’average hight and weight 142.0cm, 37.5kg ; and girls’143.7cm, 35.6kg. BMI are normal group 38.7% and abnormal group 61.3%(obese 24.2% underweight 16.1% overweight 14.0% very underweight 7.0%) A great part of obese children live in apartment house(79.5% of obese children in southern Seoul; 60.2% in northern Seoul). Obese parents have obese children. Diet behavior, diet pattern, food habit and food preferance of children are similar to their parents, especially their mothers. Preferance in taste of children follows in order of hot, sweet and mild. Especially obese children favor sweet taste more than others. The 61% of them are interested in weight control. Their nutritional knowledges are poor(4.9/10). They like more westernized food(hamberger) than korean food(In-jul-me).

• KSCE Journal of Civil and Environmental Engineering Research
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• v.36 no.3
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• pp.565-571
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• 2016

This study check the construction site and borrow pit location using GIS-based Open Global Map. Construction Equipment (Dump, Grader) utilizes the GPS (Global Positioning System) to gain equipment's real-time position, speed, altitude, using the data such as directions to perform real-time monitoring. The analysis of the productivity is completed through using the data, and the optimal number of equipment is calculated. It was found that the analysis results showed approximately 30% less cost compared to the actual design plan.

• Journal of The Korean Association of Information Education
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• v.6 no.3
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• pp.247-255
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• 2002

The importance of Information Technology practical use is embossed and grounding education for this was introduced from first-year student in primary school. This study is to design and implement new set of study program that can minimize individual variation in learning, analyzing the grounding education in Information and Communication. Herein basic stuff is selected for the lower grader at Elementary School and for the Courseware design, here introduced Perfect study strategy that makes use of the formative evaluation and feed back, aiming at perfect study. And also the diversified presentation of study materials with the use of multimedia can enhance the student's learning awareness. In faithful reflection of it, individual student's progress and interested in learning is incorporated into the designing the Courseware.

• Journal of Biosystems Engineering
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• v.17 no.4
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• pp.354-362
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• 1992

This study was intended to examine feasibility of sizing and color grading of Fuji apple with black/white image processing system, to develop a device with which the whole surface of an apple could be captured by one camera, and to develop an algorithm for a high speed sorting. The results are summarized as follows : 1. The black/white image processing system used in this study showed a maximum error of 1.3% in area measurement with a reference figure while the focusing point of camera and location of the reference figure were changed within a certain range. 2. As the result of evaluating four automatic image segmentation algorithms with apple images, Histogram Clustering Method was the best in terms of computation time and accuracy. 3. The fast algorithm for analyzing size and coloration of apple was developed. 4. The whole surface of an apple could be captured in an image frame with two mirrors installed on the both sides of the sample. The total area of the image representing the whole surface showed a correlation of 0.995 with the weight of apple. 5. The gray level when a particular band pass filter was mounted on the camera showed high correlation with 'L' and 'a' values of Hunt color scale and could represent the coloration of apple.

• The Korean Journal of Health Service Management
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• v.7 no.4
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• pp.1-12
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• 2013

This study is to analyze the personality trait and dental fear of high school students. This study is conducted with a total of 603 first grader at high school in DaeGu city from 1st September to 30th October, 2009. In prevention and dental treatment knowledge category, the average score of female are higher than male. The concern of oral health, the experience of oral health education and the number of toothbrush are significantly different in the knowledge category. In dental fear category, the number of dental pain, the visiting is treatment, the recognize of dental state, the number of toothbrush and the change of dental visiting date are significantly different. In the prevention knowledge according to dental fear state, low fear group 7.03 is higher than high fear group. In the dental treatment knowledge according to dental fear state, high fear group 7.15 is higher than low fear group. In personal temperament, there are not significantly relationship between prevention knowledge, dental treatment knowledge and dental fear. These findings are basis to development of education programs which were included prevention and dental treatment knowledge before visiting dental clinics for reducing dental fear.

• The Mathematical Education
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• v.47 no.4
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• pp.487-503
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• 2008

In this paper, descriptive assessment method for middle school mathematics was evaluated by developing a framework for designing and grading problems for descriptive assessment and analyzing the effectiveness of the problems. The new descriptive assessment problems were developed by reviewing the current 7th National Mathematics Curriculum of Korea and aligned mathematics textbooks to define a set of problem design principles and evaluation framework for the assessment strategy. The developed problems were first pilot tested and then revised based on the feedback from the test. The final version was field tested by 100 students in 7th grade middle school. After the field test, the problems were graded by two middle school math teachers and one math education researcher to determine the overall correlation between graders and also to analyze effectiveness of the evaluation framework of the test. This result of this study is expected to assist in the further development of descriptive problems and grading framework by providing a reference work for teachers to better understand the process and the limitations of executing the new assessment strategy.

• The Mathematical Education
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• v.50 no.4
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• pp.467-487
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• 2011

The purpose of this study is to analyze of gifted students' improvement on mathematical attitude and problem-solving ability through project-based materials in science high school. For this study, research questions are established as follows. 1. Does the project-based materials-used instruction have a positive effect on improving problem-solving ability? 2. Does the project-based materials-used instruction have a positive effect on improving mathematical attitude? To solve these research questions, this study employed a survey and interview type investigation for gifted students' mathematical attitude and problem-solving ability. A subject of classes were randomly selected among the 11th grader in D science high school and designated one class as the experimental group and the other class as the control group. Twelve hours of the project-based materials-used instruction and the traditional textbook-oriented instruction had been carried out in each class. Findings on this study are as follows: First, the project-based material-used instruction is shown to be more effective in enhancing problem-solving ability than the traditional textbook-oriented instruction. Second, the project-based material-used instruction is shown to be more effective in improving mathematical attitude than the traditional textbook-oriented instruction.