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‘수직농장 설계하기’활동에서 나타난 초등교사의 창의적 아이디어 분석
박선우 ( Seonwoo Park ),주은정 ( Eunjeong Ju ),장신호 ( Shinho Jang ) 한국생물교육학회 2020 생물교육 Vol.48 No.4
The purpose of this study is to analyze the creative ideas generation process of elementary school teachers in professional development for design-based learning. For the study, two groups of teachers who participated in PD were selected. They conducted 'Designing a Vertical Farm' program, a design-based learning program which was restructured the 'Life and Environment' unit. We observed and analyzed the process of their generating creative idea. As a result, the teacher's creative idea generation process has emerged at all stages of the creative problem-solving process (finding, researching, designing, building, and evaluating problems). The process of generating ideas at each stage is non-linear, which was returning to the previous stage or two or more processes were compounded. The design- centered idea generation group (A) and the build-centered idea generation group (B) showed differences in the idea generation process. Group A had enough time to design through designing with feedback and sufficient consensus to elaborate the idea appeared. However, group B had more enough time to build for making, testing, and revising. Since the group A had a long time to elaborate and the idea consensus, the production time was insufficient, the group B had a lot of trial and error and correction processes in the production stage because design ideas were not completely agreed and confirmed. The teachers’ conversations design-based learning were meaningful, which showed active feedback to elaborate ideas.
Al 기반 나노구조에 의한 Si-AlN 코어-쉘 마이크로 결정의 특성
문수현(Suhyun Mun),박선우(Seonwoo Park),김경화(Kyoung Hwa Kim),전인준(Injun Jeon),안형수(Hyung Soo Ahn),양민(Min Yang),전영태(Young Tea Chun),이삼녕(Sam Nyung Yi),이재학(Jae Hak Lee),조채용(Chae Ryong Cho),장연숙(Yeon-Suk Jang),이원재( 한국물리학회 2024 새물리 Vol.74 No.1
Hexagonal Si-AlN core-shell microcrystals were grown by the mixed-source hydride vapor phase method. In particular, it was found that the hexagonal Si-AlN core-shell microcrystals were grown by the role of the Al-based nanostructure. Since hexagonal Si has a quasi-direct bandgap energy and AlN also has a hexagonal wurtzite structure, it can open up new opportunities for power semiconductors or optoelectronic devices. In this paper, the hexagonal Si-AlN core-shell microcrystals grown were characterized using scanning electron microscopy (FE-SEM), EDS and HRTEM, and the growth mechanism is presented. Therefore, the hexagonal Si-AlN core-shell microcrystal is expected to be an example of a new method in the field of semiconductor growth.