• 수산해양교육연구
• /
• 제29권3호
• /
• pp.847-856
• /
• 2017

The purpose of this study was to develop a teaching model to improve teaching demonstration competence of pre-service Fisheries and Marine teachers through class consulting. The results were as follows: First, the results of a survey on perception of 19 pre-service teachers showed that most of them did not know exactly about the teaching demonstration. Second, a teaching model through class consulting was developed in four stages: Preparation for class, doing lesson, watching lesson, reflecting class. Third, the developed lessons model was applied for 6 weeks, but it was hard to expect much change just for 6 weeks. If discussions about the content of the lesson plan are haven during prior class consulting, this will be helpful for pre-service teachers in making the real teaching plan. The class performer have to write a report on class analysis because it is necessary to try systematic analysis on teaching demonstration.

• 기본간호학회지
• /
• 제3권1호
• /
• pp.81-95
• /
• 1996

The purpose of this study was to investigate the effects of breast self-examination teaching methods which are printed material, videotape, demonstration used BSE model on women. The subjects for this study were non-medical professional 88 women in Kwangju. The data was collected from October 16 to November 24, 1995 by means of a structured questionnaire. For measuring BSE knowledge, Kim's(1994) instrument was used ard modified by researcher. For measuring BSE attitude based on health belief, Lee's(1982) & Kim's(1994) instrument was used and modified by researcher. Printed material from literature were reviewed by researcher, 'A woman's guide to breast self-examination' videotape by Nurse Practitioner Creation and BSE simulator by Narco were used 21 attitude scale and 13 knowledge scale were checked before and after teaching methods. The data was analyzed by frequency, paired t-test, ANOVA using the SAS program. The results were as follows : 1. The BSE total knowledge score after having teaching was higher than before, different significantly(t=-14.05, p=0.000). The most effective teaching method on BSE knowledge change was demonstration used BSE model in three teaching methods and was different significantly(F=8.44, p=0.000). 2. The BSE total attitude score after having teaching was changed to more positively, different significantly(t=4.59, p=0.000). The most effective teaching method on positive BSE attitude change was demonstration used BSE model in three teaching methods and was different significantly(F=3.21, p=0.045). 3. The HB score after having teaching was higher than before, and benefits, barriers and health concerns were different significantly(t=-2.51, p=0.014 ; t=-4.53, p=0.000 ; t=-3.71, p=0.000). Susceptibility and seriousness were not different significantly. 4. There were different significantly among knowledge, religion(F=3.92, p=0.013) and child (F=3.08, p=0.08). There were different significantly among attitude, age(F=4.65, p=0.05), mansturation state(F=4.39, p=0.016), and artificial abortion experience(F=5.18, p=0.026). There were different significantly among health concern, age(F=2.50, p=0.068), delivary experience(F=3.22, p=0.076), artificial abortion experience(F=5.46, p=0.023), and feeding(F=6.24, p=0.003). Printed material, videotape, and demonstration used BSE model may be valuable for changing positively knowledge and attitude related to BSE. Demonstration used BSE model was most effective teaching method in this study. Therefore, this study revealed that BSE teaching methods were a useful nursing intervention for promoting practice regularily and exactly on women.

• 디지털콘텐츠학회 논문지
• /
• 제11권2호
• /
• pp.129-134
• /
• 2010

현재 초등학교 교육과정의 컴퓨터교육에서는 실기 위주의 수업방식과 학습자 중심의 개별화 수업을 강조하고 있다. 본 연구에서는 다수의 학습도우미를 활용한 시범-실습 교수법을 적용하여 초등학교 컴퓨터 교과 학습 단점 중 하나인 학생들의 개개인의 다양한 능력차이로 인해 교사의 시연 속도에 맞추어 따라가기 힘든 학생들의 개별 지도 확대를 통해 이 문제를 해결하였다. 이를 위해 초등학교 4학년 3개 학반을 선정하여 교사주도의 시범 실습으로 수업 한 집단, 한명의 학습도우미 활용한 시범 실습으로 수업 한 집단, 그리고 다수의 학습도우미를 활용한 시범 실습으로 수업 한 집단으로 구분하여 세 집단간의 과제수행능력 및 자기효능감, 컴퓨터 학습에 대한 호응도 및 흥미도를 비교 분석하였다. 그 결과, 다수의 학습도우미를 활용한 시범 실습 수업 집단이 과제수행능력, 자기효능감, 그리고 학습도우미 활용 학습에 대한 흥미도와 호응도에서 긍정적인 영향을 미치는 것으로 나타났다.

• 패션비즈니스
• /
• 제26권1호
• /
• pp.105-118
• /
• 2022

This study investigated the effective pedagogical strategies for sewing by examining the efficacy of sewing videos as supplemental learning materials and demonstration tools. Sewing videos were created for face-to-face apparel construction courses, and students' opinions on sewing videos as an educational tool were collected. Videos with subtitles were offered to Apparel Construction Course 1, whereas videos with narration and subtitles were offered to Apparel Construction Course 2. As "supplemental learning materials," students rated videos as more effective for learning and satisfying than "documents with text and images." The effectiveness and satisfaction scores for Apparel Construction Course 2 were significantly higher than those for Apparel Construction Course 1. Furthermore, videos were utilized significantly more than documents, and most students preferred videos over documents. The main benefits of videos as supplemental learning materials were repetitive learning at the learner's convenience and the detailed presentation of the sewing process. Students regarded narration as more effective and satisfying than subtitles. Narrations were expected to be offered along with subtitles. As "demonstration tools," students rated videos as more effective for learning and satisfying than traditional "sewing samples." Students preferred "demonstration with videos" to "demonstration with sewing samples." The main benefits of video demonstration were a close-up view, presentation of the entire sewing process, and shorter wait time without the need for group teaching. Students wanted more sewing videos and narrations to be offered, and various sewing machine feet to be used in the videos. Educational methods for sewing were suggested based on student opinions.

• 패션비즈니스
• /
• 제24권6호
• /
• pp.135-147
• /
• 2020

This study explored students' online fashion studio class experiences, and investigated the factors affecting their class satisfaction. An online survey of college students who were enrolled in online studio classes within apparel and fashion-related departments during the spring of 2020 was conducted in June 2020. Responses from a total of 213 participants were included in the final data. Respondents rated lecture clips as the most useful, followed by teacher demonstration and feedback, PowerPoint (PPT) supplements, and Q&As. Frequently mentioned areas of improvement were online platform stability and video quality. Many respondents also stated that more streamlined teacher-student communication channels, immediate and meticulous teacher feedback, the adoption of course contents developed specifically for an online environment, and provisions for equipment usage would be desirable. Student satisfaction of an online fashion design studio class was significantly affected by teaching presence, social presence, online learning system stability, perceived usefulness of teacher's demonstration, and affective response toward COVID-19. Students satisfaction of an online garment construction studio class was significantly affected by teaching and social presence, online learning system stability, and perceived usefulness of teacher's demonstration. Based on these findings, we recommend developing teaching contents and methods that allow students to feel included in class and establish an online system with various functions to enhance the sense of social connection that can enable two-way communication.

• 한국초등과학교육학회지:초등과학교육
• /
• 제29권3호
• /
• pp.350-363
• /
• 2010

Recently there has been increasing emphasis on pedagogical content knowledge (PCK) for fostering science teachers' teaching professionalism that needs to be done from teacher training courses systematically. We investigated what were the PCK factors considered in planning instruction and the difficulties encountered in implementing it by pre-service teachers. In this study, 26 sophomores at an university of education in Gyeonggi province were asked to perform teaching demonstrations using scientific instruction models. They were also requested to write reflective journals and interview. Analyses of the results revealed that many pre-service teachers considered the teaching strategies such as the instruction organization and implementation when planning instruction. They had also regard to the learners' cognitive affective aspects, whereas the pre-knowledge of them was not properly considered. Especially, the curriculum and assessment were almost disregarded. Most of the difficulties encountered in planning instruction and implementing it were appeared in terms of the teaching strategies. For example, they had difficulties in considering the characteristics of each stage presented by the instruction models when planning instruction and implementing it. The frequencies of the difficulties in implementing experiment were especially higher than those of the other PCK factors. Educational implications of these findings are discussed.

• Animal Bioscience
• /
• 제36권5호
• /
• pp.679-691
• /
• 2023

The fat deposition is an important factor affecting chicken meat quality, which is closely related to lipid metabolism of chickens. Therefore, it is important to regulate the lipid metabolism of chickens to improve the chicken meat quality. Plant extracts have special regulatory effects on animal's growth and health and have been widely used in chicken breeding. Some plant extracts have been reported to have functions of changing the fatty acid composition, reducing abdominal fat percentage, and enhancing the intramuscular fat content of chickens by improving the antioxidant capacity, regulating the expression of genes, enzymes, and signaling pathways related to lipid metabolism, modulating intestinal microbiota, affecting hormones level, and regulating DNA methylation. This paper reviewed the application and mechanism of plant extracts on regulating lipid metabolism of chickens to provide a reference for the further application of plant extracts in chicken breeding.

• Animal Bioscience
• /
• 제35권10호
• /
• pp.1616-1627
• /
• 2022

Objective: This work was conducted to investigate the effects of oxidative stress on meat quality, mitochondrial function, calcium metabolism and ferroptosis of broilers. Methods: In this study, a total of 144 one-day-old male Ross 308 chicks were divided into 3 groups (control group, saline group, and hydrogen peroxide [H₂O₂] group) with 6 replicates of 8 broilers each. The study lasted for 42 d. The broilers in the saline and H₂O₂ groups were intraperitoneally injected with 0.75% saline and 10.0% H₂O₂ on the 16th and 37th day of the experimental period respectively, the injection volumes were 1.0 mL/kg of broiler body weight. On the 42nd day of the experimental period, two chicks were randomly selected from each cage, a total of thirty-six chicks were stunned by electric shock and slaughtered to collect breast muscle samples. Results: The H₂O₂ exposure reduced pH value, increased drip loss and shear force of breast meat (p<0.05), impaired the ultrastructure and function of mitochondria. The H₂O₂ exposure damaged the antioxidant system in mitochondria, excessive reactive oxygen species carbonylation modified calcium channels on mitochondria, which impaired the activities of key enzymes on calcium channel, resulted in the increased calcium concentration in cytoplasm and mitochondria (p<0.05). In addition, the H₂O₂ exposure increased the iron content and lipid peroxidation (p<0.05), which induced ferroptosis. Conclusion: Oxidative stress could impair meat quality by causing mitochondrial dysfunction, resulting in calcium metabolism disorder and ferroptosis.

• 한국과학교육학회지
• /
• 제40권1호
• /
• pp.89-96
• /
• 2020

본 연구에서는 현행 중등 과학과 교사임용시험의 2차 교과교육학 시험의 특징과 개선 방안을 탐구하였다. 임용시험 2차 교과교육학 시험인 교수학습지도안 작성 평가, 수업실연 평가, 교직적성 심층면접 평가, 과학실험시험 등을 중심으로 1차 지필시험과 차별화하면서 2차 실습형 과학교육학 시험의 개선 방안을 탐색하였다. 주요 연구결과로는 교수학습지도안 평가의 경우 1차 지필시험과는 평가초점이 달라서 2차 교수학습지도안 시험을 유지하되, 교수학습지도안 작성의 배점을 줄이고 수업실연의 비중을 높이는 방안 등을 제안하였다. 수업실연 평가의 경우 교사양성과정에서 수업실연을 학점화하여 임용시험에 반영하는 방안, 교육실습이나 실제 수업 상황에서 평가하는 방안, 교과 수업전문성에 초점을 두고 수업실연을 평가할 필요성 등을 제안하였다. 과학실험시험의 경우 모든 시·도교육청에서 과학실험시험을 필수화하고, 실험설계 능력과 실험기반 과학탐구 지도 능력 등을 평가할 필요성 등을 제안하였다. 연구결과를 토대로 수업실연이나 심층면접 등을 시·도교육청에서 자체 출제하는 방안, 수습교사제도 도입의 필요성, 교육전문대학원 도입 방안 등을 제언하였다.

• 공학교육연구
• /
• 제15권3호
• /
• pp.3-11
• /
• 2012

본 연구는 시연을 활용한 일반물리 수업의 효과를 파악하기 위해 수업 수강 전과 후에 동일한 개념이해도 평가지를 이용하여 학생들의 개념이해도를 비교하였다. 수업효과를 측정하기 위해 Hake가 소개한 를 이용하였는데, 이것은 물리교육연구자들 사이에서 새로운 교수법의 효과를 알아보기 위해 널리 사용되는 방법이다. 연구 결과 시연을 사용한 물리학 수업의 효과가 기존 연구에서 밝혀진 전통적인 강의 중심 수업에 비해 향상된 것으로 나타났으며, 기초지식이나 시연의 경험이 많은 과학고 학생들에게 더 높은 것으로 나타났다. 또한 강의 전, 후 문항별 정답률을 비교하여 얻은 를 도입하여 특정 개념에 대한 이해정도를 파악함으로써 향후 강의 개선에 이용할 수 있음을 제안하였다.