일상생활 문제해결 중심의 유아수학프로그램이 유아의 수학적 문제해결력과 수학적 태도에 미치는 효과

양선영(Sunyoung Yang),김지현(Jihyun Kim) 한국아동학회 2019 아동학회지 Vol.40 No.4

Objectives: This study aimed to examine the effects of an everyday life problem-solving centered preschool mathematical program on young children’s mathematical problem-solving and attitude. Methods: We selected two classes of children aged 5-6 years. There were 23 children in the experiment group and 23 children in the comparison group in S city from June 20, 2018 to August 20, 2018. Using the SPSS WINDOWS 21.0 program, independent samples t -tests and corresponding sample t -tests were implemented. Results: The everyday life problem-solving centered preschool mathematical program had positive effects on improving childrens mathematical problem-solving but not their mathematical attitude in the experiment group. Conclusion: By showing the value of preschool mathematical education in everyday life, this study will be helpful improving preschool mathematical programs.

수학적 문제해결력 증진을 위한 일상생활 중심의 유아수학프로그램 개발 및 적용

양선영(Yang, Sunyoung),김지현(Kim, Jihyun) 학습자중심교과교육학회 2019 학습자중심교과교육연구 Vol.19 No.10

본 연구는 수학적 문제해결력 증진을 위한 일상생활 중심의 유아수학프로그램을 개발하고 적용하여 유아의 수학적 문제해결력에 어떠한 변화가 있는지를 살펴보고자 하였다. 프로그램의 개발을 위하여 문헌고찰과 요구도 조사를 실시하였으며, 2018년 6월 20일부터 2018년 8월 20일까지 S시에 위치한 S어린이집 만 5, 6세 유아 23명에게 일주일에 2∼3회, 30분씩 총 18회기에 걸쳐 개발된 프로그램을 적용하였다. 자료 분석은 SPSS WINDOWS 21.0을 사용하여 반복측정 분산분석과 질적분석을 실시하였다. 유아수학프로그램은 가설적 수학적 문제상황(블록놀이, 역할놀이, 실외놀이)을 문제중심학습(PBL)의 문제해결과정으로 수학활동이 전개되도록 구성하였으며 대소집단으로 유아들이 또래들과 문제를 해결하는 과정을 직접 구성해 나가도록 하였다. 적용 결과, 문제중심학습에 기반한 일상생활 중심의 문제해결과정을 거치면서 유아의 수학적 문제해결력이 긍정적으로 변화되었다. 이로써 유아의 수학적 문제해결력 증진을 위해 일상생활에서 유아가 경험하는 문제들에 대한 문 제중심학습의 접근의 유용함을 확인하였다. This study was to develop and apply the daily life-directed preschool mathematical program for improving infant children s mathematical problem solving skills and to examine how the young children s mathematical problem solving skills change. Participants were 23 preschool teachers who completed questionaires, and four of them were interviewed. Their interviews were used demand survey. 23 5-6 years old young children participated in the program as a experiment group. The preschool mathematical program was composed to apply the hypothetical problem situations(block play, role play and outdoor play) for young children`s math problem-solving process of the Problem Based Learning(PBL) and encourage young children to solve the math problem for themselves with their peers in small or large groups. As a result, young children s mathematical problem solving skills changed positively by using daily life-directed problem solving of the Problem Based Learning. This result suggests that it is appropriate to apply the PBL math program to improve mathematical problem-solving skill.

유아교사의 발달에 적합한 교육신념이 수학교과교육학지식에 미치는 영향

양선영(Sunyoung Yang),김지현(Jihyun Kim) 한국아동학회 2018 兒童學會誌 Vol.39 No.2

Objective: The purpose of this study is to examine the direct and indirect effects of early childhood teachers’ educational beliefs in a developmentally appropriate practice (DAP) on mathematics pedagogical content knowledge (MPCK) via curriculum implementation. It also examines whether this pathway differs according to the experience of the teacher education on the early childhood mathematics during their pre-service or in-service period. Methods: For this purpose, 327 early childhood teachers of childcare centers in Seoul and the metropolitan area answered a questionnaire. Stepwise multiple regression analysis was used to analyze the data. Conclusion: The teachers’ educational beliefs in DAP predicted MPCK directly as well as indirectly through curriculum implementation. In addition, when teachers had experienced pre-service or inservice teacher education on the early childhood mathematics, the teachers’ educational beliefs in DAP had a direct influence on the MPCK and an indirect one through the curriculum implementation. However, when teachers had not experienced that type of training, beliefs in DAP were indirectly influenced by curriculum implementation. The results of this study can be used to explore ways to improve teachers’ mathematics pedagogical content knowledge and contribute to the development of teachers’ education programs.

P2P 기술의 발전과 음악 수용자의 변화 : 네트워커로서의 오디언스의 출현

김혜영(Kim Hyeyoung),양선영(Yang Sunyoung),이송규(Leesong Kyouho) 한국HCI학회 2003 한국HCI학회 학술대회 Vol.2003 No.2

P2P 기술의 발전과 음악 수용자의 변화

김혜영(Kim Hyeyoung),양선영(Yang Sunyoung),이송규호(Leesong Kyouho) 한국정보과학회 2003 한국정보과학회 학술발표논문집 Vol.2003 No.2

pV3D3 유연절연막의 열탄성 거동과 계면특성에 관한 분자동역학 가상실험 연구

윤수진(Sujin Yoon),권선영(Sunyoung Kwon),진주호(Juho Jin),양승화(Seunghwa Yang) 대한기계학회 2016 대한기계학회 춘추학술대회 Vol.2016 No.12

유채 재배지의 관행 배수대책에 관한 연구

이상봉 ( Sangbong Lee ),전종길 ( Jonggil Jeon ),김민영 ( Minyoung Kim ),염성현 ( Sunghyun Yum ),양선영 ( Sunyoung Yang ),이경도 ( Kyungdo Lee ) 한국농공학회 2009 한국농공학회 학술대회초록집 Vol.2009 No.-

최근 바이오디젤 원료로 이용 가능한 유채를 벼의 후작으로 논에서 재배하는 면적이 크게 증가하고 있다. 유채는 습해에 취약하기 때문에, 수분유지 기능적 특성을 가진 논에서 재배할 경우, 명거 및 암거의 설치 등 배수개량이 필요하다. 특히, 해안 근처 간척지 논의 경우에는 배수불량 및 동절기에 토양 염분 상승으로 인한 생육불량을 야기할 수 있다. 본 연구에서는 전북 부안, 전남 영광 일대의 유채 재배 논 관행 배수 실태를 조사하고 포장의 배수성이 유채 수량에 미치는 영향에 대해 조사하여 유채 재배 논의 배수개량 기술개발을 위한 기초 자료로 활용하고자 하였다. 조사 결과는 다음과 같다. 유채 재배논의 배수는 주로 명거에 의존한 지표배수를 실시하고 있었으며, 암거 및 승수로 설치 포장은 없었다. 또한 명거 간격은 150~340cm로 지역별로 상이하게 나타나 토성 및 면적을 고려한 적정 규격은 없었다. 생육기간 전반에 걸친 토양수분변화와 수량과의 관계를 조사한 결과, 배수 양호한 포장이 불량한 포장에 비해 평균 2.7배 높은 수량을 보였다. The growth of rapeseed for bio-diesel material has been receiving much attention. However, since rapeseed is vulnerable to humidity, when it is grown in paddy fields which functions to maintain a high level of moisture, it is necessary to establish open and closed conduits. Particularly, reclaimed paddy fields nearby the coast, the rapeseed growth becomes poor due to poor drainage conditions and the high soil salinity level during the winter. This study aimed at investigating the conventional drainage condition of paddy fields in Buan, Jeonbuk and Youngguang, Jeonnam. In addition, the response of rapeseed yield on a type of drainage was also studied. The findings of this study were used for the fundamental database to develop drainage improvement technologies for rapeseed growing paddy fields. Some of main findings of this study are as follow: the drainage in rapeseed growing paddies was usually performed using the open conduits, there were no closed conduits and intercepting drain canals installed. In addition, the interval of open conduits ranged from 150 to 340cm, which clearly showed the regional differences. There was no standard considering soil characteristics and areas. Throughout the growing season, the changes of soil moisture contents and rapeseed yields were investigated and the yield in paddies with good drainage condition was 2.7 times better than the ones in paddies with poor drainage condition.

유채 재배 논의 배수성 개량에 관한 연구

이상봉 ( Sangbong Lee ),김민영 ( Minyoung Kim ),염성현 ( Sunghyun Yum ),김승희 ( Seounghee Kim ),양선영 ( Sunyoung Yang ) 한국농공학회 2010 한국농공학회 학술대회초록집 Vol.2010 No.-

최근 바이오디젤원료와 사료작물의 확보를 위하여 벼의 후작으로 유채를 재배하는 면적이 증가하고 있다. 그러나 유채는 습해에 취약하기 때문에, 수분유지 기능적 특성을 가진 논에서 재배할 경우, 명거 및 암거의 설치 등 배수개량이 필요하다. 본 연구에서는 유채재배 논에서 일반적으로 적용하고 있는 명거의 간격에 대해 검토하고 수평암거의 도입가능성에 대한 조사를 실시하였다. 조사결과 다음과 같은 사실을 알 수 있었다. 첫째, 명거의 경우 설치간격보다는 배치 및 기울기가 배수성 향상에 큰 영향을 미치는 것으로 나타났다. 둘째, 수평암거 설치 후가 설치 전에 비해 토양 잔류염분 농도가 현저히 저하된 것으로 나타났으며, 설치간격이 좁을수록 염분제거 및 과잉수분 배제효율이 높은 것으로 나타났다. 셋째, 생육 및 수량조사 결과, 배수성이 양호한 곳에서 생육 및 증수효과가 양호한 것으로 나타났다. In recent years biodiesel has received much attention as a means of reducing fossil fuel consumption and greenhouse gas emissions. Particularly, biodiesel production potential from rapeseed led many researchers to seek for the best growth condition of rapeseed in reclaimed lands. The vulnerability of rapeseed to humidity and salinity is well known, and the rapeseed growth in reclaimed paddy fields nearby the coast becomes poor due to poor drainage conditions and the high soil salinity level during the winter. Therefore, this study aimed at determining the optimal installation standard for each type of conduits and evaluating the feasibility of horizontal-closed conduit for better rapeseed production. The installation intervals were varied; 2, 4 and 6m for open conduit and 3, 5 and 7m for closed conduit, respectively. Groundwater level, soil moisture content and salinity reading from the surface and subsurface soils during the study period (January in 2009 through June in 2010) were monitored. The findings of this study were as follows: 1) the impact of installation arrangement and slope was greater than the installation interval in the case of open conduit, 2) the horizontal-closed conduit was very effective to reduce the soil salinity levels, 3) as the installation interval became small, the reduction of salinity level and excessive soil moisture contents increased, and 4) better growth condition and yield of rapeseed were achieved from the paddy fields with good drainage conditions.

CTA(Cognitive Task Analysis) 인터뷰 방식에 따른 영상제작 과제 수행의 전문성 비교

김선영,이혜정,양선영,김동식 이화여자대학교 교육과학연구소 2015 교육과학연구 Vol.46 No.3

Unlike traditional task analysis which is usually conducted with a single subject-matter expert (SME), cognitive task analysis (CTA) utilizes multiple SMEs to elicit experts’ domain knowledge of a target task to verify whether all necessary knowledge and skills were included. Interview is one of the most commonly used techniques for CTA. As previous studies have suggested, CTA interviewers should be familiar not only with the domain to be analyzed, but also know well with the process of CTA. However, the constraints of time and cost cause lack of sufficient preparation for interviewers to gain enough background knowledge of the target domain and to be skilled in CTA. The aim of this study was to provide empirical evidence on how the knowledge elicited from experts is different when interviewers are possessed with different background knowledge of the domain and CTA, and factual evidence on how interview structures make different results of the elicitation of expertise. In this study, by the forms of unstructured or semi-structured, CTA interviews were conducted by a CTA analyst and/or a SME with three experts. Whole processes of the interviews were transcribed, coded based on a CPP framework, and analyzed. The results showed that the semi-structured interview conducted by both SME and CTA analyst elicited more knowledge from experts than other interview methods.