• Hwankyungkyoyuk
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• v.24 no.1
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• pp.102-113
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• 2011

The role of teachers has been explicitly emphasized to implement the vision of sustainable development(SD). Also, it is very important to understand the way student teachers understand SD and how they interpret their own professional task in terms of SD, usually referred to as education for sustainable development(ESD). This study investigated student teachers' perceptions of SD and ESD using group interview. Key findings include, first, that they think SD as development which does not exceed the limits of natural environment, and as wise management of resources/protection of environment for future generations. They also think SD as good thing though they don't understand the contested nature of SD. Second they think ESD as education about SD, but some student teachers say they can't explain ESD. Many student teachers prefer field trip to local examples for both elementary school students and themselves. Also they will teach only what the textbook says about SD and ESD during their school placement and as teachers. So it will be the beginning of ESD in school to include SD in the curriculum for students and student teachers. It is suggested to study student teachers' perception of SD focussing on how they think the relationship between protection of environment and economic growth.

• Hwankyungkyoyuk
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• v.23 no.2
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• pp.129-144
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• 2010

The purpose of this study was to examine the pre-service elementary teachers' perceptions and attitudes toward sustainable development. Subjects were 152 university students, who were surveyed by questionnaire. The instrument consisted of totally 41 items which were constructed by 3 components; 'the perception of concept of sustainable development', 'the attitude toward the relationship between economy and environment' and 'the practical intention of personal change for sustainable lifestyle'. The key findings suggest that most students associate strongly the concepts of sustainable development with their environmental as against economic and social aspect. Most of them incline toward eco-centrism but they had complex attitudes concerning the relationship between economy and environment. They have intention to act for sustainable lifestyle such as purchasing habits, recycling, energy water saving, forms of transportation, nature conservation and education. However, they prefer to act passively than actively in a certain aspect of sustainable lifestyle. Understanding of pre-service elementary teachers' perceptions of and attitudes toward sustainable development will be helpful to work out teaching and learning strategies in environmental education.

• Journal of Elementary Mathematics Education in Korea
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• v.23 no.1
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• pp.1-17
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• 2019

In this study, prospective teachers were involved in arranging the teaching sequence of multiplication and division of fractions and decimal numbers based on their experience and knowledge of school mathematics. As a result, these activities provided an opportunity to demonstrate the prospective teachers' perception. Prospective teachers were able to learn the knowledge they needed by identifying the differences between their perceptions and curriculum. In other words, prospective teachers were able to understand the mathematical relationships inherent in the teaching sequence of multiplication and division of fractions and decimal numbers and the importance and difficulty of identifying students' prior knowledge and the effects of productive failures as teaching methods.

• Journal of the Korean Society of Food Culture
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• v.30 no.1
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• pp.105-117
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• 2015

The purpose of this study was to compare weight control behaviour, eating habits, and health-related life habits according to degree of obesity among normal, overweight, and obese groups. Self-perception of weight and desire for weight control in males (p<0.001) and females (p<0.001) varied among the three groups. Reasons (p<0.001), experience (p<0.01), and method of weight control (p<0.05) were different among the three female groups, whereas males did not show any differences. Intake of nutritional supplements in the male obese group was higher compared to other groups (p<0.01), whereas eating habits were not significantly different among the three groups for both males and females. Food habits score for intake of fruits, milk, and yogurt were higher in females than males (p<0.001). Correlation coefficients of food habits score and anthropometric measurements showed that hip circumference was negative for intake of fruits in males, whereas RBW and BMI were positive for food combination, intake of bean products, and fishes in females (p<0.05). Frequency and fitting exercise in the obese female group were lower than in the other groups (p<0.01). Therefore, proper nutritional education for obese individuals is recommended proper self-perception of weight, good food habits, and regular exercise.

• Journal of the Korean Society of School Health
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• v.27 no.1
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• pp.22-30
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• 2014

Purpose: The purpose of this study was to investigate the effect of exercise on mental health in female elementary school teachers. Methods: The subjects were 1,861 female elementary school teachers in Seoul. Data were collected through an online survey from November 16 to December 7, 2008. Collected data were analyzed by descriptive statistics, ${\chi}^2$-test, t-test, one way ANOVA and Scheff$\acute{e}$ test, using IBM SPSS 20.0 program. Results: Not many female elementary school teachers were engaging in exercise. Even though their perception of stress and degree of depression were high, the rate of suicidal thoughts were low. The perception of stress was lower in the female teachers who engaged in walking or high-intensity workout than those who did not. The teachers who walked or stretched for exercise showed a lower rate of depression than those who did not and the teachers who walked for exercise displayed a lower rate of suicidal thoughts. Conclusion: Exercise programs should be provided for female elementary school teachers to reduce their stress, depression, and suicidal thoughts.

• Journal of the Architectural Institute of Korea Planning & Design
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• v.35 no.5
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• pp.51-59
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• 2019

The purpose of this study was to analyze the perception among participants in the Built Environment Education(BEE) programs for children. And also, hopefully, we would get some strategies for development of BEE program through post-evaluation. The survey was conducted by the students and the parents who were participated in the four BEE programs. The key results are as follows: 1) The way of participation in the programs was limited. We should consider public relation strategies and its sustainable curriculum. 2) The students felt easy to learn from the lecture, but we need to consider the students' ability in craft activities and the level of school grades. 3) Most of the participants was satisfied with the programs. For students, the 'Educational Environment(Hours & Facilities)' was highly correlated with overall satisfaction. On the other hand, in the case of parents, the 'Teacher' was highly correlated with overall satisfaction. 4) Parents were aware of the need to link the BEE program to school education such as a subject of 'Creative Activity.' The BEE as an integrated program would be a school curriculum or contents of STEAM education. At the end of this paper, the meaning of this study was discussed.

• Korean Journal of Childcare and Education
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• v.16 no.6
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• pp.1-17
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• 2020

Objective: The purpose of this study is to examine whether the 'Ordinance for Guaranteeing Children's Right to Play' is has been implemented well and investigate play practice in elementary school. Methods: For this study, a survey was conducted on 319 elementary school teachers in Jeollanam-do. Results: First, elementary school teachers' perception of the enactment of the 'Ordinance on Children's Right to Play' is high. And their perception is positive about the effect of the 'Ordinance on Children's Right to Play'. Second, among the roles of the Office of Education, play-related training and club support were relatively low. The role of the elementary school director was relatively low in the analysis and disclosure of play performance. Third, the time that children mainly play in school is the middle play time. The sufficiency and safety of play spaces differed by region. Fourth, the contents to be added to the 'Ordinance' are securing play space, budget support, and mandatory play time. Conclusion/Implications: In the future, 'Ordinance on Children's Right to Play' should go through a process of improvement so that children's play is realized as a right.

• International Journal of Advanced Culture Technology
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• v.9 no.4
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• pp.226-236
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• 2021

The purpose of this study is to analyze the type of latent profile for general high school students' subject selection criteria and to identify the characteristics of the latent class. The survey data of 1072 general high school students (male; 648, female; 424) in G city, Jeollabuk-do and the scale composed of 8 sub-factors: 'SAT orientation', 'academic achievement', 'ability orientation', 'pursuit of interest', 'teacher orientation', 'career development', 'others' recommendation', and 'subject availability' were used for latent profile analysis and cross-analysis between potential layers. As a result of the analysis, high school students' perceptions of subject selection were classified into four latent profiles. The four groups were named 'High Perception Type', 'Low Perception Type', 'Self-Directed Type', and 'Stability-Oriented Type' according to their types. It was found that there was a difference between the latent classes in the importance and performance level of the subject selection criteria. These results can help identify the subject selection tendencies of latent groups in the operation of the 2015 revised curriculum and the 2025 high school credit system that emphasizes the student-centered course selection curriculum and they can also provide customized course selection guidance considering individual differences.

• The Journal of Korea Robotics Society
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• v.18 no.3
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• pp.346-351
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• 2023

With the release of numerous open driving datasets, the demand for domain adaptation in perception tasks has increased, particularly when transferring knowledge from rich datasets to novel domains. However, it is difficult to solve the change 1) in the sensor domain caused by heterogeneous LiDAR sensors and 2) in the environmental domain caused by different environmental factors. We overcome domain differences in the semi-supervised setting with 3-stage model parameter training. First, we pre-train the model with the source dataset with object scaling based on statistics of the object size. Then we fine-tine the partially frozen model weights with copy-and-paste augmentation. The 3D points in the box labels are copied from one scene and pasted to the other scenes. Finally, we use the knowledge distillation method to update the student network with a moving average from the teacher network along with a self-training method with pseudo labels. Test-Time Augmentation with varying z values is employed to predict the final results. Our method achieved 3rd place in ECCV 2022 workshop on the 3D Perception for Autonomous Driving challenge.

• Journal of Korean Elementary Science Education
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• v.42 no.3
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• pp.467-479
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• 2023

For the successful implementation of education using artificial intelligence (AI) in schools, the perception of teachers is important. This study focuses on elementary school teachers and their perception of the need and teaching efficacy of science classes using AI before and after participating in a research school program. The analysis explores four key aspects, namely, learning, teaching, assessment, and communication. The study recruited 24 elementary school teachers from a school designated by the Gangwon Provincial Office of Education to participate in a year-long research school program. The study collected data using pre- and post-program surveys to explore changes in the perception of teachers regarding AI-based science classes. Furthermore, the researchers conducted individual in-depth interviews with four elementary school teachers to investigate the experience factors that influenced the changes in their perception of the aforementioned classes. The main findings were as follows. First, elementary school teachers were positively aware of the need for science classes using AI even prior to their research school experience; this perception remained positive after the research school program. Second, the science teaching efficacy of the elementary school teachers using AI was generally moderate. Even after the research school experience, the study found no statistically significant increase in efficacy in teaching science using AI. Third, by analyzing the necessity-efficacy as quadrants, the study observed that approximately half of the teachers who participated in the research school reported positive changes in learning, teaching, and assessment. Fourth, the study extracted four important experience factors that influenced the perception of the teachers of science classes using AI, namely, personal background and characteristics, personal class practice experience, teacher community activities, and administration and work of school. Furthermore, the study discussed the implications of these results in terms of the operation of research schools and science education using AI in elementary schools.