• International Journal of Internet, Broadcasting and Communication
• /
• v.14 no.4
• /
• pp.47-51
• /
• 2022

The purpose of this study is to investigate the views on utilizing ICT material, especially the reasons for ICT material choice. Numerous recent studies have demonstrated increased use of electronic devices including smartphones in educational settings. But the reasons for using it as a learning tool have not been relatively researched from the point of view of pre-service teachers. Therefore, this study analyzed the pre-service teachers' thinking about utilizing ICT material and their learning experience. In that regard, data was collected in various ways such as surveys, interviews, and brief writings of participants. According to the study result, pre-service teachers were motivated in utilizing ICT material rather than text material. That is the reason why, as adult learners, especially pre-service teachers could be more motivated in self-directed learning environments. This study will be useful in considering ideas for the instructional design of pre-service teachers.

• Proceedings of the Korean Geotechical Society Conference
• /
• 1998.10a
• /
• pp.209-216
• /
• 1998

• International conference on construction engineering and project management
• /
• 2005.10a
• /
• pp.1193-1198
• /
• 2005

The pre-assembly takes a large portion of the fabrication cost of steel bridges. In order to save the fabrication cost through the improvement of the conventional pre-assembling process, this research investigates a numerical pre-assembly simulation as an alternative to current pre-assembling process. The 3D laser scanning was utilized in site and measuring data for steel box were analyzed. The productivity of pre-assembly simulation system is compared with the conventional pre-assembling system. This paper identifies feasibility on the alternative pre-assembling process and then proposes the scheme of the pre-assembly simulation system development satisfying the current pre-assembly inspection of standards.

• Hwankyungkyoyuk
• /
• v.22 no.3
• /
• pp.125-135
• /
• 2009

In this study, we discuss pedagogical content knowledge (PCK) of pre-service environment teachers since PCK is one of the most important professional competencies for teachers. In Republic of Korea, environmental education is taught as an independent subject in middle and high schools. Thus, pedagogical content knowledge (PCK) of environment teachers plays an important role for quality EE at schools. The purpose of this study is to find out the PCK(Pedagogical Content Knowledge) of pre-service environment teachers. Researchers collected and analyzed data from four environmental education department. Study method used a questionnaire for eighty-two pre-service environment teachers. The study results are as follows. Seven part of PCK(Knowledge of Instructional Strategies, Knowledge of Representation, Knowledge of Subject Matter, Knowledge of Evaluation, Knowledge of Students, Knowledge of Curriculum, Knowledge of Environmental Context) exists the significant difference in pre-service environment teachers. The highest part is the Knowledge of Environmental Context and the lowest part is the Knowledge of Evaluation in pre-service teachers. So the curriculum of environmental education department will be changing that emphasize the Knowledge of Evaluation and the Knowledge of Students.

• Journal of the Korean Society of Earth Science Education
• /
• v.13 no.2
• /
• pp.134-146
• /
• 2020

The purpose of this study is to examine how elementary pre-service teachers have a perception of 'science'. Especially, this study used photo-narrative method to analysis pre-service teachers' perception of 'science'. Photo-narrative is a way of describing what a study participant wants to say by taking a picture. Participants were 66 elementary pre-service teachers. The results of this study were as follows: First, elementary pre-service teachers used many words such as people, life, everyday as well as scientific terms such as phenomena and principles to explain science. Secondly, the pictures used by elementary pre-service teachers to explain science included household goods, natural phenomena, advanced devices, and living things. Third, elementary pre-service teachers explained science with knowledge of science, knowledge, convenience, and nature of science. As a result of this study, it was found that elementary pre-service teachers recognized that science is closely related to life and that it is necessary for learning. The results of this study can contribute not only to curriculum composition and curriculum content of elementary and middle school science education but also to curriculum development for teacher training.

• Textile Coloration and Finishing
• /
• v.31 no.2
• /
• pp.88-97
• /
• 2019

In this study, when printed on a nylon material, the color strength and fastness are lower than that of a polyester material, and the nylon material shrinks due to heat and pressure, resulting in poor design and poor compatibility. To overcome this problem, we investigated the possibility of transfer DTP by adding pre-treatment process to nylon transfer DTP process. For the basic study of pre-treatment preparation, we used pure nylon material which is not compounded and dispersion ink and transfer paper applied to existing PET transfer DTP. Pre-treatment preparations were classified into three types of acryl-base polymer and pre-treated with nylon and then applied to transfer DTP to confirm their color strength and fastness. The color strength of the pre-treated nylon material increased and poly-methyl-acrylate amulsion pre-treatment showed the best color at $210^{\circ}C$, 1.5m/min and 0.3MPa. The nylon material pre-treated with washing, friction, and light fastness was judged to be more excellent and stable.

• Journal of Engineering Education Research
• /
• v.25 no.6
• /
• pp.69-80
• /
• 2022

In this study, the application of flipped learning methodology to thermodynamics in mechanical engineering was examined, and how university students view flipped learning and the effects of flipped learning were analyzed. To analyze the effects of flipped learning, pre-class survey, assessment on learning in pre-class, team activities during class, and post-class survey were conducted. The analysis was also conducted on 33 students who took the thermodynamics course in mechanical engineering, and the PARTNER flipped learning model was applied to the class. The results of this study are as follows; In the preliminary survey, the students expected that the flip-learning class with team activities and teaching between team members would be helpful in improving their learning. In addition, students recognized that cooperative learning through a team was helpful for learning. The case reflecting the result of pre-learning evaluation to the subject grades showed higher pre-learning evaluation results than the case not reflecting the result of the pre-learning evaluation to the subject grades, and it was found that the pre-learning evaluation was acting as a factor to promote learning in pre-class. In post-class survey, the satisfaction with the flipped learning class was high, indicating that the effectiveness of the flipped learning class applied to the thermodynamics class was excellent.

• Journal of Korean Elementary Science Education
• /
• v.38 no.1
• /
• pp.31-42
• /
• 2019

Through the criticism and evaluation of different classes teaching the same lesson topic, this study compared the viewpoints by two ways between two groups including pre-service and experienced teachers. Through free-style criticism, this study analyzed the differences between pre-service and experienced teachers' areas of attention. Through criteria-based analysis, the study analyzed the judgement of each area and the criteria of each judgement. The results of the study found that pre-service teachers criticised more limited areas, but somewhat more positive than their experienced teacher counterparts. Also, pre-service teachers did not observe thoroughly whether or not the teacher was well-informed of the science content, the sequence of curriculum, and whether or not meaningful interaction had occurred. As well as, pre-service teachers were not actually feel importance of student-oriented lessons, and they could not look room and materials are useful to students on students' sides. Additionally, pre-service teachers thought highly of lessons which were connected to other subjects rather than connected to daily life. Therefore, to notice diverse areas in the class, pre-service teachers need to criticise lessons using a diverse criterion. Also, pre-service teachers realized simple questions and that mechanical group activities are not always effective and that they need to think how to improve meaningful interaction. Moreover, they have to perceive that an inquiry-oriented student-lead approach is very important. Lastly, pre-service teachers have to closely consider the room efficiency and materials available to the students, and they must internalize that science class has to be connected with daily life.

• East Asian mathematical journal
• /
• v.35 no.4
• /
• pp.429-449
• /
• 2019

This study aims to investigate the statistical literacy of pre-service mathematics teachers and to discuss the impact of statistical literacy in lesson plan. For the purpose of this study, we analyzed 13 pre-service mathematics teachers' statistical literacy tests and lesson plans. The results of this analysis are as follows: First, pre-service mathematics teachers did not have a high level of statistical literacy, and it was also observed that there was a big level difference between them. Second, pre-service mathematics teachers' lesson plans showed significant difference in the level of the target grade, the characteristics of the target student, and the contents. Based on this study, we seek to find implications for how it is appropriate to educate teachers in charge of statistical education.

• Journal of Families and Better Life
• /
• v.16 no.2
• /
• pp.97-106
• /
• 1998

This study was carried out to clarify the labor experience and to understand the labor burdon of women in pre-industrial society. For the purpose This study made use of literature review and narration from 20 elders above 70 years old. It was founded that women in pre-industrial society had participated in public labor which had related to nation and household economy. Especially the participation in textile manufacture was evaluated that had produced lots of economic value. The labor burdon of married women in pre-industrial society was founded great.