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The Awareness of the Dietary Education and Dietary Management Competency of (Preliminary) Teachers in Primary and Secondary Schools (초·중등 예비교사와 교사의 식생활 교육에 대한 인식과 식생활 관리 역량)

  • Kim, Yunhwa
    • Journal of Korean Home Economics Education Association
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    • v.30 no.3
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    • pp.215-231
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    • 2018
  • Attitudes to the health and dietary life of teachers affect their students. The purpose of this study was to investigate dietary and education awareness, eating habits and dietary management competency of the preliminary teachers and teachers. Data was collected from 812 pre-service teachers and teachers in South Korea using a 5-Likert self-administrated questionnaire in October to December of 2017. Data was analyzed using factor analysis, reliability, one-way analysis of variance, and correlation. The results of this study are as follows. Dietary and education awareness was classified into dietary concern and dietary management stress. Eating habits composed of healthy eating habit and bad eating habit. Dietary management competency was sub-grouped into dietary knowledge, cooking, dietary sanitation and safety, and environment. The all factors of pre - service teachers and teachers showed a significant difference except for the environmental ability factor (p <0.01). All factors were significantly different according to the age and the number of meal preparation (p <0.05). The eating habits were not significantly differences from sex. The major and health condition showed significant differences except dietary management stress and cooking factors (p <0.01). The obesity index showed significant difference in the dietary concern, bad eating habits, and cooking factors (p <0.01). In conclusion, it was required to education and develop education materials that can help the STEAM education using the dietary area. The dietary education program for the pre - service teachers and the teachers should increase the number of participating in the meal preparation considering the difference according to the general characteristics, so that the dietary management competency and the healthy eating habits should be formed.

Analysis of long-term water level change of Dongrae hot spring using time series methods (시계열 방법을 이용한 동래온천 수위의 장기적인 변화 분석)

  • Jeon, Hang-Tak;Hamm, Se-Yeong;Cheong, Jae-Yeol;Lee, Cheol-Woo;Lee, Jong-Tae;Lim, Woo-Ri
    • Journal of the Geological Society of Korea
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    • v.54 no.5
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    • pp.529-544
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    • 2018
  • Dongrae hot spring belongs to the residual magma type and has a long history of bathing since the Silla dynasty in Korea. Due to long development of hot spring water, it is expected that the amount of hot spring water in Dongrae hot spring has been changed. In this study, long-trem water level data of Dongrae hot spring were examined for recognizing the change of the hot spring. By the fluctuation analysis of the hot spring water level from January 1992 to July 2018, the maximum and minimum annual drawdowns of no. 27 well were 137.70 and 71.60 meters, respectively, with an average drawdown of 103.39 m. On the other hand, the maximum and minimum annual drawdowns of no. 29 well were 137.80 and 71.70 meters, with an average drawdown of 103.49 m. Besides, drawdown rate became bigger in recent years. As a result of analyzing autocorrelation of the two wells, the correlation coefficient ranged from 0.919 to 0.991, showing seasonal groundwater level fluctuation. The cross correlation analysis between water level and precipitation as well as water level and hot spring discharge resulted in the correlation coefficients of -0.280 ~ 0.256 and 0.428 ~ 0.553, respectively. Therefore, using Dongnae hot-spring water level data from 1992 to 2018, the Mann-Kendall test and Sen's test showed that the continuous decline of water level was mainly caused by the pumping of the hot spring water among various reasons.

Habitat Characteristics of Benthic Macroinvertebrates at a Headwater Stream in the Yeonyeopsan (Mt.) (연엽산 산지계류에 있어서 저서성 대형무척추동물의 서식특성)

  • Jang, Su-Jin;Nam, Sooyoun;Kim, Suk-Woo;Koo, Hyo-Bin;Kim, Ji-Hyeon;Lee, Youn-Tae;Chun, Kun-Woo
    • Korean Journal of Environment and Ecology
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    • v.34 no.4
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    • pp.334-344
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    • 2020
  • A total of 24 families, 44 species, and 658 benthic macroinvertebrates were identified, and Ecdyonurus dracon Kluge (13%) was the dominant species in forested streams within the Yeonyeopsan (Mt.). A total of four habit categories (i.e., clingers (56%), burrowers (19%), swimmers (14%), and sprawlers (56%)) were identified, and clingers were the dominant habit at all survey points except point one (UP1). Habitat characteristics were depended on the hydraulic factors (e.g., flow velocity, depth, and substrates), water quality (e.g., DO and water temperature), and the habitat characteristics were differed in the riffle, which has a faster the flow velocity, compared by in the stagnant pool. In other words, in riffles, the clingers dominated in high flow velocity with the large maximum and median grain size for substrates in the habitats regardless of depth, but the burrowers and sprawlers were dominant in low flow velocity with the small maximum and median grain size for substrates in the habitats. Moreover, DO and flow velocity were in positive correlation (y = 0.6666x - 0.659, R2 = 0.0851), and the habitat for burrowers was wider than that for sprawlers or clingers. The water depth was negatively correlated with water temperature (y = -26.397x + 283.87, R2 = 0.1802) since the water temperature is more sensitive to insolation in shallow depth. pH was positively correlated with water temperature. The investigation of the habitat characteristics by separating the relations between pH and DO in upstream and downstream showed the low pH and high DO in the upstream with a high crown density of 68%, regardless of community composition. On the other hand, high pH and low DO in the downstream with a relatively low crown density of 51%. It was considered that the riparian forest played a role in suppressing the growth of attached algae and the controlling water temperature in headwater streams. Our findings identified the habitat characteristics of benthic macroinvertebrates in a headwater stream. We expected that the finding can provide reference data for suggesting conservation and management plans in a headwater stream and increasing academic value.

Effect of the Landscape Crop, Chrysanthemum zawadskii on Reducing Soil Loss in Highland Sloping Area (경관작물 구절초의 고랭지 경사지 밭 토양유실 경감 효과)

  • Kim, Su Jeong;Sohn, Hwang Bae;Hong, Su Young;Kim, Tae Young;Lee, Jung Tae;Nam, Jung Hwan;Chang, Dong Chil;Suh, Jong Taek;Kim, Yul Ho
    • Korean Journal of Plant Resources
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    • v.33 no.1
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    • pp.15-23
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    • 2020
  • There is high vulnerability of soil loss in sloping and highland used for agricultural production due to the low surface covering in summer rainy season. This study evaluated the surface-covering rate of landscape crop in reducing soil loss in the highland. The experiment was conducted in a 55% sloped lysimeter with three treatments of planting density using Korean native chrysanthemum, and investigated the soil coverage rate, run-off water, and soil erosion. The three treatments according to the degree of soil covering are bare soil as the control treatment TC, coverage rate of 43-59% for treatment T1, and, coverage rate of 63-81% for treatment T1, and T2. During the cultivation period, the average reduction of run-off water was 71% for treatment T1 and 76% for treatment T2, which are better, compared with the control. The reduction in eroded soil was 84% in treatment T1 and 98% for treatment T2, which is also better than the control treatment. Therefore, it is possible to alleviate the soil loss in sloping lands by planting chrysanthemum, which is superior among the perennial plant species and considered as a crop with economic value.

Exploratory Study on the Phenomena of Entrepreneurship Education in Food and Agriculture Sectors Based on the Grounded Theory Approach (근거이론접근법에 기반한 농식품분야 창업교육현상에 관한 탐색적 연구)

  • Seol, Byung Moon
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.15 no.3
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    • pp.33-46
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    • 2020
  • This study analyzes the entrepreneurship education phenomena for agri-food entrepreneurs whose main business is the production of agricultural products and the sale of processed products, using the qualitative study Strauss & Corbin(1998)'s evidence theory approach. From the entrepreneur's point of view, I would like to summarize the phenomena that appear in education, and to prepare a theoretical basis for explaining the phenomena. The importance of entrepreneurship education is emphasized to cultivate the ability to develop and provide products tailored to customers. The necessity of education leads to an increase in demand according to the situational awareness of the founders, and the quantitative increase in entrepreneurship education in the agri-food sector is a clear trend. Inevitably, the need for various discussions on systematic and effective entrepreneurship education is raised. For the study, an interview was conducted with preliminary or entrepreneur who have experienced entrepreneurship education in the agri-food sector. As a research method, I use Strauss & Corbin(1998)'s approach and analyze qualitative data using QSR's NVIVO 12 program. Through this study, it was found that contextual and systematic entrepreneurship education in the agri-food sector has the effect of strengthening competitiveness and strengthening sales. There is a need for follow-up management of trainees. Strengthening the competitiveness of start-ups is based on training professional manpower through education and linking regions with cities. Strengthening sales is based on product planning and market development. This study explores entrepreneurship education in the agri-food sector, which has not been actively conducted in the past. Exploratory analysis on the experiences of the founders of agri-food sector as education demanders has an important meaning for understanding the phenomenon of start-up education.

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A Study on Postconventional Christian Education for Intercultural Conflict Resolution (문화 간 갈등해소를 위한 탈인습적 기독교교육에 관한 연구)

  • Kim, Jinyoung
    • Journal of Christian Education in Korea
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    • v.62
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    • pp.257-283
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    • 2020
  • Our current society is experiencing a mass upheaval through globalization: mobility, hybridity, and cultural diversity are part of this world phenomenon. We can say that these changes are a result of people crossing borders due to international travel, immigration, emigration, studying abroad, labor, international marriages, fast and comfortable transportation, and the Internet. According to 2018 UNPD(Untied Nations Population Division)'s data, the international migrants have exceeded 258 million as of 2017. The increased number of migrants signifies that people with various backgrounds move from their own culture to a drastically different one. Interacting with different cultures can give people the chance to experience abundant lifestyles and improve life qualities. During that process, however, the differences between cultures can cause not only misunderstandings, conflicts, and violent collisions, but also xenophobia or radical nationalism. The current society is confronted with a problem: the people cannot stubbornly cling to a homogenous ethnicity anymore, which makes the coexistence between the citizens and immigrants necessary. Through these circumstances, I aim to suggest an educational model and a practical curriculum from a Christian perspective as the aim of this study. It seeks to encourage Christians to flexibly respond to these conflicts and collisions, and to fulfill their social responsibilities faithfully. For this reason, I will explore and seek sharing practical values through both shalom's communality as a theological approach and postconventionality in mature adults as a social-scientific approach. Consequently, I have few requests for the readers. First, approach with openness, understanding, and respect for other culture. Second, see this study as one step of confronting the global problem for coexistence and coprosperity of all social agents in the earth, a limited space. Third, notice that this study uses the interdisciplinary approach (theological and social scientific view) for a shareable, practical value that consistently leads the curriculum of my thesis, and a scientific method to eliminate bias. Lastly, understand that this study will eventually be used in educational practice, and as a result it prioritizes giving thought to the Christian educational environment. This study begins by exploring the conflicts and collisions between diverse cultures of our current society in international and national cases. Afterwards, I will reflect on how we can manage these conflicts and collisions by exploring the social-scientific view, postconventionality in mature adults, the theological view, and shalom's communality as a complement for the postconventionality's personal dimension. In conclusion, I suggest a curriculum that achieves peace as a practical value based on postventionality and shalom's communality for this study's goal.

Development and Evaluation of the PBL Teaching/Learning Process Plan of 'Housing Culture and Practical Space Use' for Home Economics in Middle School (중학교 가정과 문제 중심 '주생활 문화와 주거 공간 활용' 교수·학습 과정안 개발과 평가)

  • Cho, Jiwon;Cho, Jaesoon
    • Journal of Korean Home Economics Education Association
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    • v.32 no.2
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    • pp.59-76
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    • 2020
  • The purpose of this study was to develop and evaluate the teaching/learning process plan of 'housing culture and practical space use' for home economics in middle school according to the problem based learning(PBL) model. The plan consisting of 4-lessons has been developed and implemented following the steps of ADDIE model. Various activity materials (4 scenarios, 6 individual activity sheets, 10 reading texts, and 5 working resources) and visual materials (4 sets of ppt and 4 moving pictures) as well as questionnaire were developed for the 4-session lessons. The plans were implemented to a single class of 21 junior students at H middle school in rural area, Kyeongnam, from 1st to 12th of April, 2019. Students highly enjoyed and were satisfied with the whole 4-lessons in aspects such as understanding of the contents, adequacy of materials and activities, and usefulness in one's own daily life. Additionally, they have more actively participated in the lessons than usual and even interested in learning more of such lessons. Students also reported that they highly accomplished the goal of each lesson as well as overall objectives. They showed interest in the major part of PBL lesson such as scenario and group activities. And they engaged themselves in drawing the share housing space plan with '5D planner' web program which they described as the best part of the lessons. The teaching/learning process plan developed in this study may be used as a theme of maker education, which is emerging these days. It can be concluded that the PBL teaching/learning process plans for 'housing values and practical space use' would contribute to improving students' attitude on living with others and ability to manage one's individual life.

The Change of Christian Pre-Service Early Childhood Teachers through Development of Bible-Based Early Childhood Language Education Activities (성경에 기초한 유아 언어 교육 활동 개발을 통한 기독 예비 유아 교사의 변화)

  • Kim, Min-Jung
    • Journal of Christian Education in Korea
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    • v.61
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    • pp.165-201
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    • 2020
  • The purpose of this study is to explore the development of language education of Christian early childhood education by exploring the change of pre-Christian preschool teachers through the development of biblical language education activities. Interviews, surveys, action plans, and reflections of 19 Christian education students who participated in the development of bible-based language education activities for children based on the language of early childhood language, were conducted from September 3 to December 28, 2018. The data were collected through a portfolio. By analyzing the collected data, the key categories were derived and categorized. For the objectification of data analysis and interpretation, two thematic and early childhood education specialists were identified. As a result, the preparatory Christian teacher experience for the development of bible-based langage education activities for young children was categorized into cognitive change, personality change and practical change. First, through the development of bible-based early childhood language education activities, Christian pre-service early childhood teachers have brought cognitive changes as 'processes not outcomes', 'integration not separation', 'living non-curriculum' and 'meaning not effect'. In developing bible-based language education activities for young children, Christian pre-service early childhood teachers experienced a cognitive change in the 'process of language education activities' rather than the developmental achievements and results of early childhood language education. Christian pre-service early childhood teachers recognized the necessity of 'integration of listening-speaking-reading-writing', not the separation of early childhood language education. They recognized the importance of 'informal language education in kindergarten life', as well as teacher-centered formal language education. In addition, they have made a cognitive change that 'child-centered meaningful language education experience' is more important than the effectiveness of early childhood language education. Second, in developing bible-based language education activities for young children, Christian pre-service early childhood teachers showed personality changes as 'confident teachers', 'professional teachers', and 'teachers with reflective thoughts and attitudes'. Finally, in developing bible-based language education activities for young children, Christian pre-service early childhood teachers recognized the power of positive language and practiced it to form habits of using the right language and to link Christian education with early childhood education. Through the development of bible-based language education activities for young children, Christian pre-service early childhood teachers are equipped with the heart attitude and enthusiasm required to become true early childhood teachers for young children in unpredictable educational conditions and rapidly changing educational realities. Teacher efficacy has improved. In the future, it is expected that various teacher education programs linking Christian education and early childhood education will be continuously and systematically implemented.

Analysis of the consumer perception and related education effect on the reduction of sugar for elementary school students in Seoul and Gyeonggi-do (서울, 경기지역의 초등학생 대상 당 저감화에 관한 소비자 인식 및 관련 교육 효과 분석)

  • Kim, Ki Nam;Lee, Jung Sug;Shim, Jee-Seon;Chung, Hae Kyung;Chung, Hae Rang;Chang, Moon-Jeong
    • Journal of Nutrition and Health
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    • v.53 no.3
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    • pp.303-318
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    • 2020
  • Purpose: This study examined the effects of nutritional education related to sugar in elementary school children on nutritional knowledge, attitude, and dietary behavior. Methods: A questionnaire survey on the knowledge, attitudes, and intake related to sugar was conducted on 572 students in grades 4-5, who were attending five elementary schools in Seoul and Gyeonggi-do. Results: Among the survey subjects, 270 (49.8%) were cognitive in education, and 302 (50.2%) were non-cognitive. The sugar-related knowledge score was 3.67 points in the cognitive education group, which was significantly higher than the 3.55 points in the non-cognitive group. The rate of checking the sugar content in the nutrition label was 31.2% in the cognitive education group, which was significantly higher than in the non-cognitive group, 15.4%. The cognitive education group had a higher intake frequency of unsweetened candy, jelly, and raw fruits, and higher sugar intake of unsweetened bread, white milk, and raw fruits than the non-cognitive group. In the case of the cognitive education group, the total knowledge score showed a positive correlation with the food behavior scores, and a negative correlation with the frequency of purchasing snacks after school, and the average sugar intake per day. In the cognitive education group only, the education of nutrition teachers was analyzed as a factor to reduce the total sugar intake. The cognitive group of sugar education tried to eat foods with a lower sugar content than the non-cognitive group, and nutrition education was an important factor affecting the sugar intake. Conclusion: To reduce the sugar intake of elementary school students, it will be necessary to practice oriented-nutrition education by nutrition teachers continuously. In addition, it is important to develop and disseminate various types of nutrition education materials related to sugar that can be utilized easily by nutrition teachers.

Predicting the Pre-Harvest Sprouting Rate in Rice Using Machine Learning (기계학습을 이용한 벼 수발아율 예측)

  • Ban, Ho-Young;Jeong, Jae-Hyeok;Hwang, Woon-Ha;Lee, Hyeon-Seok;Yang, Seo-Yeong;Choi, Myong-Goo;Lee, Chung-Keun;Lee, Ji-U;Lee, Chae Young;Yun, Yeo-Tae;Han, Chae Min;Shin, Seo Ho;Lee, Seong-Tae
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.22 no.4
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    • pp.239-249
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    • 2020
  • Rice flour varieties have been developed to replace wheat, and consumption of rice flour has been encouraged. damage related to pre-harvest sprouting was occurring due to a weather disaster during the ripening period. Thus, it is necessary to develop pre-harvest sprouting rate prediction system to minimize damage for pre-harvest sprouting. Rice cultivation experiments from 20 17 to 20 19 were conducted with three rice flour varieties at six regions in Gangwon-do, Chungcheongbuk-do, and Gyeongsangbuk-do. Survey components were the heading date and pre-harvest sprouting at the harvest date. The weather data were collected daily mean temperature, relative humidity, and rainfall using Automated Synoptic Observing System (ASOS) with the same region name. Gradient Boosting Machine (GBM) which is a machine learning model, was used to predict the pre-harvest sprouting rate, and the training input variables were mean temperature, relative humidity, and total rainfall. Also, the experiment for the period from days after the heading date (DAH) to the subsequent period (DA2H) was conducted to establish the period related to pre-harvest sprouting. The data were divided into training-set and vali-set for calibration of period related to pre-harvest sprouting, and test-set for validation. The result for training-set and vali-set showed the highest score for a period of 22 DAH and 24 DA2H. The result for test-set tended to overpredict pre-harvest sprouting rate on a section smaller than 3.0 %. However, the result showed a high prediction performance (R2=0.76). Therefore, it is expected that the pre-harvest sprouting rate could be able to easily predict with weather components for a specific period using machine learning.