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선택기회 제공 교수가 중도중복장애 유아의 자발적 의사표현과 참여행동에 미치는 영향
박찬우 한국유아특수교육학회 2020 유아특수교육연구 Vol.20 No.2
The purpose of this study was conducted by a teaching method providing choice opportunities to find out the impact on spontaneous expression and participation behavior of young children with severe and multiple disabilities. Three young children with severe and multiple disabilities aged 4 to 5 participated in the study, and the research method was designed in foundation line, arbitration, generalization(1), maintenance, and generalization(2) by designing the non-concurrent multiple baseline design across participations. The arbitration strategy applied the strategy of providing a teaching method providing choice opportunities by applying the selection, time delay, demand-model, and reactive interaction principles. The results of the study were the frequency of spontaneous expression in young children with severe and multiple disabilities increased through a teaching method providing choice opportunities. Second, the duration of activities for the participation of young children with severe and multiple disabilities was increased through the professor providing a teaching method providing choice opportunities. Third, providing optional opportunities, the professor had a positive effect on the frequency of spontaneous intentional expression (Tau-U:0.84~0.89) and the duration of participatory behavior (Tau-U:0.91~1) in infants with moderate to severe disabilities. The significance of this study is to provide systematic and explicit choice opportunities for young children with severe and multiple disabilities in a natural setting and to provide opportunities for young children with severe and multiple disabilities to participate in classes(or play) led by on their own.
유아특수교사의 시선으로 바라본 자폐성장애 유아의 놀이 특성과 놀이 지원 방안 : 포토보이스 방법을 중심으로
박찬우 국립특수교육원 2023 특수교육연구 Vol.30 No.1
The purpose of this study is to explore the play experience and play support strategies of children with ASD(Autism Spectrum Disorder) during free play time during the day. For this purpose, photovoice research was conducted. The researcher directly conducted in-depth interviews with 8 early childhood special education teachers. They had at least 6 years of experience teaching children with ASD. Research participants observed play during free play time and took pictures of specific scenes. Afterwards, the researcher conducted in-depth interviews with the participants focusing on the contents related to photography. For the interview content, a serial comparative analysis method was used. The results of the study consisted of 3 core themes and 16 sub-themes. The core themes were 1) play characteristics for children with ASD, 2) difficulties in supporting play for children with ASD, 3) plans to support play for children with ASD. Based on these results, the play characteristics of children with ASD, ways to support play participation, and the dynamic role of teachers were discussed. 이 연구는 유아특수교사의 시선을 통해 바라본 자폐성장애 유아의 놀이 특성과 놀이 지원 방안을 알아보기 위해서 실시되었다. 이를 위해 자폐성장애 유아를 지도한 경험이 최소 6년 이상인 교사 8명을 대상으로 포토보이스 연구를 진행하였다. 연구 참여자들은 자유놀이 시간에 유아의 놀이를 관찰하고, 의미 있는 놀이 장면을 직접 사진 촬영하였다. 이후 참여자들이 촬영한 사진을 중점으로 심층면담을 실시하였다. 면담 내용은 연속적 비교 분석법을 통해 분석하였다. 연구 결과, 자폐성장애 유아의 놀이 특성과 놀이 지원 방안과 관련하여 3개의 핵심주제와 16개의 하위주제가 도출되었다. 핵심주제의 내용은 1) 자폐성장애 유아가 하는 놀이의 의미, 2) 자폐성장애 유아의 놀이 지원의 어려움, 3) 자폐성장애 유아의 놀이 지원 방안이었다. 이 결과를 바탕으로 자폐성장애 유아의 놀이 특성과 놀이 참여 지원 방안, 교사의 역동적인 놀이 지원 등을 중점으로 논의하였다.
박찬우,이효성 한국경영과학회 2002 한국경영과학회지 Vol.27 No.4
We study multi-component production/inventory system in which individual components are made to meet various demand types. We assume that the demands arrive according to a Poisson process, but there is a fixed probability that a demand requests a particular kit of different components. Each component is produced by a flow line with several stations in which the processing times of each station follow a two-stage Coxian distribution. The production of each component is operated by an independent base-stock with blocking. We assume that the time needed to assemble final products follows a general distribution and the capacity of an assembling facility is sufficiently large. The objective of this study is to obtain key performance measures such as the distribution of the number of each orders for each final product and the mean time of fulfilling a customer order. The basic principle of the proposed approximation methods is to decompose the original system into a set of subsystems, each subsystem being associated with a flow line. Each subsystem is analyzed in isolation using a method. As iterative procedure is then used to determine the unknown parameters of each subsystem. Numerical results show that the accuracy of the approximation method is acceptable.