• 한국수학교육학회지시리즈D:수학교육연구
• /
• 제15권2호
• /
• pp.159-179
• /
• 2011

This paper reports on the learning journeys in mathematical problem solving of 21 teachers enrolled on a Masters of Education course entitled Discrete Mathematics and Problem Solving. It draws from the reports written by these teachers on their personal journeys: the commonalities and differences among them in terms of how they look at their own problem solving experiences, what language they employ in talking about problem solving, and what impact the course has on their views about problem solving. One particular aspect of problem solving instruction, a pedagogical innovation called the Practical Worksheet, is addressed in some detail. These graduate students are full-time mathematics teachers with at least two years of classroom experience. They include primary and secondary teachers.

• 과학기술정책
• /
• 제13권6호통권144호
• /
• pp.92-110
• /
• 2003

• 기술경영경제학회:학술대회논문집
• /
• 기술경영경제학회 1998년도 제13회 하계학술발표회 논문집
• /
• pp.57-90
• /
• 1998

This study attempts to explore the evolution paths of Korean SMEs'strategies and their technological teaming processes. Several different evolution paths are identified based on a dynamic strategic group analysis of 115 SMEs'strategy in the Korean electronic component industry for the period of 1990-1995. Further, inadept case analyses on technological learning processes in 5 firms are undertaken. Major findings of this study can be summarized as follows : 1) There are three dominant evolution paths in SMEs'strategy. First path indicates the evolution from a subcontractor or petty imitator group(a strategic group with the narrow product/market domain and the low level of accumulated resource/capabilities) into an innovator group(a strategic group with the narrow domain but high level of technological capability) by accumulating technological capabilities. Second, some firms move from a subcontractor group into a generalizer group(a strategic group with broad product/market domain but relatively low level of technological capability) by simply adding product lines. Third path involves firms which evolve from a subcontractor group into a production focus group(a strategic group with high level of production capability) by investing in production capabilities. 2) An in-depth case analysis shows those who succeeded in technological learning are managed by CEOs, who have technological expertise and strategic vision, and have made an effort to establish management practices to support innovation, such employee educational program, performance-based reward system, etc. The successful firms also aggressively pursue diverse external linkages with outside technology sources to learn product and process technologies. Fiendly, this study discusses several implications of the findings for the theoretical development and strategic management of small firms in Korea.

• Educational Technology International
• /
• 제9권2호
• /
• pp.97-121
• /
• 2008

The purposes of the present study are to describe the design of mobile learning scenarios based on learning sciences theories, and to discuss implications for the future research in this area. To move beyond mere speculations about the abundant possibilities of mobile learning and to make real impact in K-12 school settings, it is critical to conduct school-based research grounded on the learning sciences theories. Towards this end, this paper describes school-based mobile learning projects conducted by a research team at the Learning Sciences Lab in Singapore, and then discusses the possibilities and challenges of mobile learning to further inform future research. Specifically, this paper explores the affordances of mobile technology, such as portability, connectivity and context-sensitivity, to design seamless learning scenarios that bridge formal and informal learning experiences. The authors present a framework for re-conceptualizing different types of learning based on physical settings and intentionality, and then describe two seamless learning scenarios, namely 3Rs and Chinatown Trail, which were implemented in one primary school in Singapore. In conclusion, the authors discuss the affordances of seamless mobile learning for enhancing one's lived experiences to build a living ecological relationship between the person and the environment, and how mobile technology can play a critical role for enabling such lived experiences.

• 기술혁신연구
• /
• 제23권3호
• /
• pp.255-286
• /
• 2015

본 연구는 구매자-공급자 간 협력에 기반을 둔 기술혁신 성과창출에서 공급자 조직 학습역량의 역할에 초점을 두고 있다. 이를 위해 본 연구는 국내 제조업에 종사하고 있는 중소기업 221개사를 이용하여 매개효과분석을 수행하였다. 실증검증 결과, 공급자의 기술혁신 성과에 대한 구매자의 직접지원(기술인력 지원, 기계도구 및 검사장비 지원, 설비사용 교육)은 통계적으로 유의하지 않았지만, 구매자의 간접지원(지식, 노하우, 가치, 정보 공유)은 긍정적이며 유의한 효과를 갖는 것으로 나타났다. 매개효과분석을 위한 추가 검증 결과, 공급자의 학습역량과 구매자의 간접지원 사이에 부분 매개효과가 존재한 반면에 구매자의 직접지원과 공급자의 학습역량 간에는 완전 매개효과가 존재하는 것으로 나타났다. 이 연구결과는 구매자의 간접지원이 공급자의 기술혁신 성과를 향상시키는데 더욱 중요한 역할을 할 수 있음을 제시한다.

• 한국과학교육학회지
• /
• 제24권1호
• /
• pp.76-89
• /
• 2004

Recent studies of science and technology "in-the-making" revealed that the process of designing material artifacts is not a straightforward application of prior images or theories by one (or more) person(s) isolated from his or her (their) environment. Rather, designing is a process contingent on the social and material setting for both engineering designers and students. Over the past decade, designing technological artifacts has emerged as an important learning environment in science classrooms. Through the analyses of a large database concerning an innovative simple machines curriculum for sixth-and seventh-grade students, we accumulated valid evidence for the nature of the designing process and science learning through it. In this paper, we show that design actions intertwine with the transformation of the objectified raw materials and artifact, the designer collective, and the mediating tools enabling that transformation, which constitute the elements of an activity from the perspective of cultural-historical activity theory. We conceptualize the continuous change of relation between material artifacts, designers, and tools throughout the design activity as co-evolution. Two episodes were selected to exemplify synchronic and diachronic change of relations inherent in co-evolving activity system. Finally, we discuss the implications of co-evolution during design activity for science learning.

• 기술혁신연구
• /
• 제12권2호
• /
• pp.21-46
• /
• 2004

Focusing on a product, this paper reconstructs the concept of technological systems first introduced by Carlsson and Stankiewicz (1991). Based on the model and our earlier works, we compare the salient features of technological systems for computer numerically controlled (CNC) machine tools in Korea, Sweden, and the United States.. We also try to measure the performance of the systems in an international comparison. Major findings are as follows: (1) The length of 'learning period' for local (national) technological system is substantial, even though it is a catching-up case. (2) The key success factor of the technological system appears to be the connectivity among various actors or infrastructures, rather than just the existence or formation of those. (3) In three countries' experience, the government played an important role in the formation of each own technological system. (4) The performance of Korea's technological system for CNC machine tools during the past two decades(1981-97) seems to be better than that of Sweden and the U.S. Lastly, many policy implication are presented.

• 과학기술학연구
• /
• 제1권1호
• /
• pp.179-200
• /
• 2001

본 연구에서는 기술의 사회적 선택과정과 기술학습을 연계시켜 살펴볼 수 있는 모델을 개발하고 그 모델에 입각해서 사례분석을 수행하였다. 모델개발과 관련해서는 기술공동체의 구조적 특성이 기술학습에 영향을 미친다는 기술학습론의 논의와 제도형성과 제도효과에 대한 조직사회학과 기술사회학의 논의를 종합하여, '기술정치'와 '기술학습'을 수행하는 주체인 기술공동체의 개념을 정립하였다. 그리고 이에 바탕해서 기술정치와 기술학습의 상호작용 메커니즘을 개념화하였다. 사례분석은 우리 나라이동통신기술개발을 대상으로 이루어졌다. CDMA기술과 GSM기술을 개발하는 국가연구개발사업과 국가표준결정 과정을 중심으로 어떻게 정책결정이 이루어졌으며, 이 정책이 각 기술공동체의 기술학습활동에 어떠한 영향을 미쳤는가를 분석하였다.

• Asian Journal of Innovation and Policy
• /
• 제9권2호
• /
• pp.207-222
• /
• 2020

As the COVID-19 continues spreading, Korea's Ministry of Education (MOE) announced that all public schools, including elementary, middle, and high schools, must begin on April 9, 2020, via online teaching for the first time in the nation's history. There were opposite views among educators regarding the unprecedented attempt to start school online. This study intends to analyze the strategies and policies of distance learning in the public education sector using the experiences in Korea, which has been dealing with the COVID-19 pandemic over the past six months, and thus presents educational implications that may be of interest other countries in the post-COVID-19 era. This study first conceptualized the distance education policy in two domains: technological infrastructure and technological teaching and learning, and then examined what specific policies have supported distance education in school settings. For the analysis of policies supporting distance education in Korea, this study analyzed the relevant documents that include the annual plan and press release uploaded on the website of MOE from early March until early August. Accordingly, 13 documents that contain the distance education policy were analyzed in this study. To provide equal opportunities for all students and ensure fair resource allocations, technological inequality should be discussed in the context of educational inequality. Finally, this study looks at how strategies and policies could be related to educational equality and equity.

• Journal of Information Processing Systems
• /
• 제8권2호
• /
• pp.241-262
• /
• 2012

An understanding of quality attributes is relevant for the software organization to deliver high software reliability. An empirical assessment of metrics to predict the quality attributes is essential in order to gain insight about the quality of software in the early phases of software development and to ensure corrective actions. In this paper, we predict a model to estimate fault proneness using Object Oriented CK metrics and QMOOD metrics. We apply one statistical method and six machine learning methods to predict the models. The proposed models are validated using dataset collected from Open Source software. The results are analyzed using Area Under the Curve (AUC) obtained from Receiver Operating Characteristics (ROC) analysis. The results show that the model predicted using the random forest and bagging methods outperformed all the other models. Hence, based on these results it is reasonable to claim that quality models have a significant relevance with Object Oriented metrics and that machine learning methods have a comparable performance with statistical methods.