• Journal of Korean Elementary Science Education
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• v.24 no.5
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• pp.518-530
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• 2005

The purpose of this study was to investigate the characteristics of pre-service primary teachers' justifying their hypotheses about the brightness of electric bulbs. They conducted their experiments and wrote their experimental results and ideas on their worksheets. The worksheets for generating and evaluating scientific hypothesis were analyzed. Most of them generated the consumption hypothesis and designed the experiments to confirm their hypotheses or directly measure without the change of experimental conditions. The responses for valid experimental designs were $74\%$ of total responses. The $62\%$ of total responses was valid prediction for experimental results. The $60\%$ of pre-service teachers described the experimental results correctly. But other teachers described the biased results or inappropriate results. The $54\%$ of them refuted hypotheses and the $36\%$ confirmed their hypotheses. The theory-based responses were $51\%$ and the evidence-based responses were $47\%$. The $64\%$ of them proposed the possibility of the alternative hypothesis after testing their hypotheses. This study also discussed the implications of these findings for teaching and Loaming in science education.

• Journal of The Korean Association of Information Education
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• v.16 no.1
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• pp.21-31
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• 2012

Recently, reflection as a way of reducing the learners' cognitive burden in the programming learning process has been studied. In the present study, we examined the effects of reflection using worksheets to measure elementary students' project performance. The results of the study are that learners who have more reflective time over their learning process are performed creatively and diversely their project work. This study is significant in that it provides more learning opportunities for elementary students by reflection rather than by trial-and-error in programming learning.

• Educational Technology International
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• v.15 no.2
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• pp.49-69
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• 2014

The purpose of this study was to investigate the effect of co-regulated learning on the improvement of self-regulated learning skills in collaborative learning environments. One group pretest-posttest design was used in this study. The subjects were 49 undergraduate students who enrolled in 'Educational Evaluation' course. To facilitate students' co-regulated learning activities, group worksheets were developed. Students performed collaborative tasks in group by using the group worksheets over the 6 weeks. The results showed that the difference between means of the pretest and posttest was no statistically significant. It indicates that co-regulated learning activities did not have a significant effect on the improvement of self-regulated learning skills in collaborative learning environments. However, the results of additional analysis revealed that the difference between means of the pretest and posttest in case of 19 students with low self-regulated learning level was statistically significant. On the other hand, there was no statistically significant difference between means of the pretest and posttest in case of 19 students with high self-regulated learning level. It is interpreted that co-regulated learning activities positively affected the improvement of self-regulated learning skills of students with low self-regulated learning level.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.9
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• pp.290-301
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• 2017

This research aimed to develop problem creating worksheets as a teaching & learning material for problem solving activities and assess its effectiveness. Activity worksheets for creative problem development were established. The effectiveness of the problem-creating classes taught to gifted students in invention was evaluated. In addition, effective strategies for encouraging problem creating and question making in teaching & learning processes were explored. The creative problem identification activity consisted of 5 steps, which are idea creation, convergence, execution, and evaluation. The results showed that elementary and middle school students taught in the classes using this problem-identification worksheet were highly satisfied with the program. This study concluded that it requires an educational environment, government level collaboration, and support to create a mature social atmosphere and educational environment motivating students to keep asking questions and identify problems. Through continual modification, additional ongoing efforts to increase the credibility and the quality of the worksheets as a creative problem solving and learning tool will be needed.

• Korean Journal of Childcare and Education
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• v.10 no.2
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• pp.175-192
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• 2014

The purpose of this study was to investigate the differences in perceived importance of mathematical education (perceived importance) and mathematical interaction of 5-year-olds' mothers according to contents of mathematical education. Second, we intended to examine whether mothers' understanding of purpose of mathematical education predicted on their perceived importance and mathematical interaction. Third, we analyzed relative influence between mothers' perceived effectiveness of concrete materials and worksheets on their perceived importance and mathematical interaction. The subjects consisted of 151 mothers of 5-year-olds lived in D city and K province in Korea. The results were as follows: First, mothers' perceived importance and mathematical interaction were higher in 'number and arithmetic'. Second, mothers' understanding of purpose of mathematical education predicted their perceived importance in all contents and mathematical interaction in 'number and arithmetic', 'geometry', and 'algebra'. Third, mothers' perceived effectiveness of concrete materials predicted better in most contents of mathematical education. Meanwhile, in 'number and operation', mothers' perceived effectiveness of worksheets did a predictive role in their importance awareness. These results were discussed in terms of necessity of a parent education program to provide practical information about contents and methods of mathematical education for their 5-year-old children.

• Journal of Families and Better Life
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• v.19 no.1
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• pp.235-251
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• 2001

The purposes of this study was to develop household debt management education and counseling programs. The issues related with the consumer use of credit were identified and the selected programs of the United States were analyzed to develop the education and counseling programs for Korean households. Curriculums for the debt management education in three subjects and the process for debt counseling were suggested. Debt management education program included the issues related to general credit management strategy, credit card usage, and debt burden. For debt counseling, worksheets of problem identification, budget analysis, and action planning were developed.

• Proceedings of the Korean Information Science Society Conference
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• 2002.10d
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• pp.52-54
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• 2002

정보화 기술의 급속한 발전과 인터넷을 통한 세계적인 전자상거래 시장확대 및 B2B 비중의 증가 등 경제 패러다임이 변화하고 있다. 이러한 급변하는 시장환경과 B2B 거래 활성화에 따라 기업 간 비즈니스 프로세스 및 거래 문서의 표준화가 대두되었고, 이를 위해 XML을 이용한 인터넷 기반 글로벌 전자상거래 실현을 위한 지원 기술로서, ebXML이 국제 표준으로 등장하였다. 본 논문에서는 비즈니스 프로세스 모델링을 위한 UMM 모델링 방법론과 비즈니스 프로세스의 표준화를 위해 ebXML에서 제시하고 있는 워크시트를 이용하여 신발산업의 비즈니스 프로세스 표준화를 위한 모델링을 제안하였다.

• Journal of Institute of Control, Robotics and Systems
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• v.19 no.7
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• pp.646-652
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• 2013

EU's Galileo project is a market-based GNSS (Global Navigation Satellite System) that is under development. It is expected that Galileo will provide the positioning services based on new technologies in 2020s. Because Galileo E1 signal for OS (Open Service) shares the same center frequency with GPS L1 C/A signal, CBOC (Composite Binary Offset Carrier) modulation scheme is used in the E1 signal to guarantee interoperability between two systems. With E1 signal consisting of a data channel and a pilot channel at the same frequency band, there exist several options in designing signal acquisition for Assisted-Galileo receivers. Furthermore, compared to SNR worksheet of Assisted-GPS, some factors should be examined in Assisted-Galileo due to different correlation profile and code length of E1 signal. This paper presents SNR worksheets of Galileo E1 signals in E1-B and E1-C channel. Three implementation losses that are quite different from GPS are mainly analyzed in establishing SNR worksheets. In the worksheet, hybrid long integration of 1.5s is considered to acquire weak signal less than -150dBm. Simulation results show that the final SNR of E1-B signal with -150dBm is 19.4dB and that of E1-C signal is 25.2dB. Comparison of relative computation shows that E1-B channel is more profitable to acquire the strongest signal in weak signal environment. With information from the first satellite signal acquisition, fast acquisition of the weak signal around -155dBm can be performed with E1-C signal in the subsequent satellites.

• Human Ecology Research
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• v.57 no.1
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• pp.91-107
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• 2019

The use of standardized stitches in globalized apparel markets is becoming increasingly important. However, many apparel vendors still use disunified stitches, such as Japanese and English. This study analyzes the usage of clothing stitches of cut and sewn knit garment fabrication of small companies. The results of the analysis of 464 worksheets of cut and sewn knit garments are as follows. First, of the 464 worksheets, only 4.31% are labeled as ISO 4915 No. Among the 1,399 stitches, only 3.15% were marked with the ISO 4915 No. Second, among 1,399 stitches, ISO 4915 No. 406 followed by 401 was the most frequently used. Third, in the case of the top, ISO 4915 No. 406 was used the most; in addition, ISO 4915 No. 401, 301 and 304 were also frequently used. Fourth, in the case of the bottoms, the stitch with the highest frequency was ISO 4915 No. 406 followed by ISO 4915 No. 103 and 401, respectively. Fifth, in the case of the top, ISO 4915 No. 406 was most commonly used in hemlines and sleeve edges; in addition, in the case of the bottoms, ISO 4915 No. 406 and 103 were most commonly used as hemlines. In conclusion, it is important to use international standard stitches, especially for the most frequently used stitches. By using the standard stitches, the communication errors between production departments can be reduced and information can be accurately delivered.

• Korean Journal of Child Studies
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• v.27 no.5
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• pp.123-141
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• 2006

The phonemic awareness program included construction of 45 activities emphasizing various sounds in speech and letter names using a storybook. The subjects were thirty 1st and 2nd grade low-income(15 experimental and 15 control group) children attending an after-school program in Seoul. Pre- and post-tests assessed children's reading, self-concept, and learning motivation. The experimental group children had rich opportunity to deal with and discuss sounds, syllables, phonemes, and the Korean alphabet names during storybook reading, games, and play over a 12 week period, while the control group children were provided with worksheets, subject tutoring, and homework guidance. Results showed that the phonemic activities were an effective and useful way to enhance children's reading ability, self-concept, and learning motivation.