• Journal of Science Education
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• v.40 no.3
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• pp.203-218
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• 2016

The purpose of this study was to investigate the effects of reflective thinking-based laboratory report on learners' metacognition and inquiry skills. In a general physics experiment class consisting of 11 experiments, 20 college students used reflective thinking-based laboratory report, and then the changes of their metacognition and inquiry skills were compared with those of who used general laboratory report. The opinions of students used reflective thinking-based laboratory report were surveyed. The results showed that their metacognitions were increased more than those of comparison group that used common experiment report. Their inquiry skills also were increased as much as comparison group's. According to the survey results, they recognized that reflective thinking-based laboratory report helps to improve their performance, metacognitions, and inquiry skills.

• Journal of Korean society of Dental Hygiene
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• v.12 no.5
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• pp.849-859
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• 2012

Objectives : The purpose of this study was to examine the educational effects of team learning by having learners keep a journal to record, check and reflect on their own learning. It's basically meant to investigate the effects of team learning on learning motivation and academic achievements to provide some information on teaching-learning strategy setting tailored to learner characteristics. Methods : The subjects in this study were 49 college sophomores. After they were divided into an experimental group and a control group, the experimental group of 24 students engaged in team learning from March to June, 2012, and that group was asked to keep a reflective journal every week to determine whether writing a reflective journal in every session served to boost their learning motivation and academic achievement or not. Results : 1. After the experimental group kept a reflective journal, that group underwent a significant change in learning motivation from a mean of 3.34 in the pretest to a mean of 4.01 in the posttest(p<0.05). The experimental group showed a more positive improvement than the control group. 2. After the experimental group kept a reflective journal, they underwent a significant change in academic achievement from 22.7 in the pretest to 23.5 in the posttest(p<0.05). The control group showed no significant improvement in academic achievement. Conclusions : The findings of the study illustrated that keeping a reflective journal had a positive impact on the learning motivation of the learners, and the findings of the study are expected to lay the foundation for future research in new teaching methods for the department of dental hygiene.

• Journal of Educational Research in Mathematics
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• v.9 no.2
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• pp.383-404
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• 1999

This study began with an epistemological question about the nature of mathematical cognition in relation to the learner's activity. Therefore, by examining Piaget's 'reflective abstraction' theory which can be an answer to the question, we tried to get suggestions which can be given to the mathematical education in practice. 'Reflective abstraction' is formed through the coordination of the epistmmic subject's action while 'empirical abstraction' is formed by the characters of observable concrete object. The reason Piaget distinguished these two kinds of abstraction is that the foundation for the peculiar objectivity and inevitability can be taken from the coordination of the action which is shared by all the epistemic subjects. Moreover, because the mechanism of reflective abstraction, unlike empirical abstraction, does not construct a new operation by simply changing the result of the previous construction, but is forming re-construction which includes the structure previously constructed as a special case, the system which is developed by this mechanism is able to have reasonability constantly. The mechanism of the re-construction of the intellectual system through the reflective abstraction can be explained as continuous spiral alternance between the two complementary processes, 'reflechissement' and 'reflexion'; reflechissement is that the action moves to the higher level through the process of 'int riorisation' and 'thematisation'; reflexion is a process of 'equilibration'between the assimilation and the accomodation of the unbalance caused by the movement of the level. The operational learning principle of the theorists like Aebli who intended to embody Piaget's operational constructivism, attempts to explain the construction of the operation through 'internalization' of the action, but does not sufficiently emphasize the integration of the structure through the 'coordination' of the action and the ensuing discontinuous evolvement of learning level. Thus, based on the examination on the essential characteristic of the reflective abstraction and the mechanism, this study presents the principles of teaching and learning as following; $\circled1$ the principle of the operational interpretation of knowledge, $\circled2$ the principle of the structural interpretation of the operation, $\circled3$ the principle of int riorisation, $\circled4$ the principle of th matisation, $\circled5$ the principle of coordination, reflexion, and integration, $\circled6$ the principle of the discontinuous evolvement of learning level.

• Journal of Korean Elementary Science Education
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• v.31 no.3
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• pp.372-385
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• 2012

For decades, reflection has been recognised as a meaningful tool to bring forth teachers' ownership as well as knowledge and action empowerment in teacher education. Yet there have been few studies on elementary teachers' reflection on their science teaching in Korea. In this study, 71 reflective journals of 24 elementary teachers on their science teaching were analyzed. The characteristics of reflective journals were analyzed in terms of 'productive reflection', a concept suggested by Davis (2006). Unproductive reflection is mainly descriptive without analysis, whereas productive reflection can promote teachers' learning by integrating four aspects of teaching (learner/learning, subject matter knowledge, instruction and assessment). The result showed what elementary teachers consider and emphasize and how they integrate their ideas. Most of reflective journals included aspects of 'instruction', 'learner/learning', and 'subject matter knowledge'. However 'instruction' was emphasized most frequently (69.0%) than 'subject matter knowledge' (33.8%) and 'learner/learning' (26.8%). 'Assessment' was hardly included nor emphasized. More than half of the journals (56.3%) showed no integrations, which were unproductive reflection. A third of the journals (32.4%) integrated only two aspects among four. Average score of integrations was 1.6 on a scale of 4 points. The integrations were not affected by the length of reflective journals and the teaching experience. These findings suggest that productive reflection would not increase naturally with teaching experience and there needs more tactful guidance to develop elementary teachers' productive reflection on their science teaching.

• Journal of the Korea Institute of Military Science and Technology
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• v.17 no.5
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• pp.672-679
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• 2014

To improve sensing capability of infrared, heat-resistance and mechanical properties, the $SiO_2$ and $TiO_2$ anti-reflective layers were coated on sapphire substrate by MOCVD. The standard wavelength was 4,600nm, and the thickness of anti-reflective layers were 379 and 758nm in case of ${\lambda}/4$ and ${\lambda}/2$ of incident angle($65^{\circ}$), respectively. The $SiO_2$ and $TiO_2$ anti-reflective layers were coated 12.6 and 9.7nm/min of deposition rates by increasing oxygen pressure to set the ideal refractive index of 1.283. In case of $SiO_2({\lambda}/2)$ coating, the transmittance increased from 55.0 to 62.7%. The transmittance of $TiO_2({\lambda}/2)$ anti-reflective layer also increased from 55.0 to 64.8%. The flexural strength of $SiO_2({\lambda}/2)$ and $TiO_2({\lambda}/2)$ layer coated sapphire increased from 337.8 to 362.9 and 371.8MPa, respectively. The flexural strength at $500^{\circ}C$ of these materials also increased respectively to 304.5, 358.2MPa from 265.9MPa. From these results, we confirmed these materials can be used as transmission window of infrared light.

• Journal of Information Technology Services
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• v.11 no.4
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• pp.135-151
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• 2012

Traditionally in IS studies, the relationship between construct and its measurement items tends to be assumed to be reflective, meaning that the measurements are a reflection of the construct. In reality, however, the nature of the construct can be often formative, which means that its measurement items describe and define the construct rather than vice versa. The purpose of this study was to investigate theoretical and empirically-analysed differences between formative construct and reflective construct through comprehensive interdisciplinary literature review. And then on the basis of these differences, we intended to derive the rule of specifying whether the construct is formative or reflective and propose the methodology of testing the validity(content validity, construct validity, internal consistency and external construct) of formative construct and its measurements, differentiated from that in the case of reflective construct. Also, we suggested the concrete statistical testing methods such as VTT(Vanishing Tetrad Test), MIMIC(Multiple Indicators and Multiple Causes) test and multi-collinearity test. In order to examine the applicability of this methodology to developing the constructs for performance evaluation of IS(Information Systems), we tried to identify its attribute(formative or reflective) and test the validity for the construct arbitrarily chosen among them which had been derived in our previous IS performance evaluation study by using this methodology. The result of the examination was that the methodology proposed in this study was significantly valid and effective in the area of IS performance evaluation.

• Journal of Korean language education
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• v.29 no.1
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• pp.109-137
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• 2018

The purpose of teacher education is to improve the professionalism of teachers above the current level. The type of teacher education to improve the professionalism of experienced teachers is broadly divided into top-down education and bottom-up education. So far, studies on top-down education were commonly conducted in the field of Korean language education. However, there has been an increasing number of studies emphasizing the need for bottom-up education, driven by the voluntary participation of teachers in recent years. The purpose of this study is to suggest the direction of reflective teacher education for experienced Korean language teachers. For this purpose, a survey was conducted of 71 Korean language teachers who had more than 5 years of experience. The contents of the survey consisted of opinions regarding existing teacher education, the need for reflective teacher education, and the perception of teaching professionalism. The results showed that experienced Korean language teachers had a positive perception of the existing teacher re-education experience. Also, 91% of the respondents said they intend to participate in the reflective teacher education program. In particular, respondents showed high demands for 'peer coaching', 'peer observation', and 'teaching portfolios' among reflective teacher education programs. Lastly, many respondents selected 'development and utilization of teaching materials', 'encouraging learner's utterances', and 'leading learner's interest and motivation' as sub-elements of teaching professionalism that they wish to improve through teacher re-education.

• Journal of agricultural medicine and community health
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• v.28 no.2
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• pp.61-70
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• 2003

Objectives: Traffic accidents often occur to power tillers without reflective light in the dawn, evening and night. Because of this reason, there has been a 'campaign to attach reflective lights' to power-tillers in recent years. Therefore, the authors investigated the relationship between reflective light and traffic accidents involving power-tillers. Methods: We defined traffic accidents of power tillers as those cases of rear-end collision by a car in the dawn, evening or night. According to our definition, four cases were confirmed in Hyungok-myeon, Gyeongju and five cases in Gigye-myeon, Pohang. We selected a control group from people in the same village with similar age, sex, driving history and education. Results: The study group contained 9 accidents and 36 non-accidents. Power tillers with reflective light were 32 cases (72.7%) of 44 cases (excluded one case due to death). Of those, the status of reflective light was 'clean' in 18 cases (56.3%). The recognition that reflective light can prevent accidents was 'Yes' in 26 cases of 44 cases (59.1%). The recognition of the 'campaign to attach reflective lights' to power tillers was 'Yes' in 38 cases of 44 cases (86.4%). The recognition about the safety regulation of driving power-tillers was 'Yes' in 32 cases of 44 cases (72.7%). Odds ratio of traffic accidents for no reflective light was 7.00 (95% CI: 1.06-58.37). Conclusions: Although the 'campaign to attach reflective lights' to power tillers are going on, its effectiveness may unknown. Therefore, more extensive epidemiologic study is needed into the relationship between reflective light and power tiller traffic accidents, with effective administration of the government and the attention of medical persons.

• Journal of the Korean association of regional geographers
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• v.17 no.4
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• pp.459-476
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• 2011

This research aims to figure out the impact of different reflective thinking methods on pre-service geography teachers' teaching knowledge. Four pre-service teachers in the same level were selected through the first simulated instruction, Then, different reflective methods were given them to carry out the reflection. Afterwards, they carried out their second simulated instruction. The change of average score of pre-service teachers was analyzed through the peer reviews and Paired samples T-test. The results are as follows. First, when the first peer review score were compared with second peer review, average score of all pre-service teachers improved. But, pre-service teachers who got cooperative reflection with a specialist had the widest variation in the increase level of average score comparing to those without reflection or reflective journal writing. Second, reflective journal writing through self-reflection led to their reflective thinking, but it did not induce them to reflective practice. Finally, pre-service teacher who got cooperative reflection with experienced teachers got the significant improvement in PCK through the T-test. In particular, it had significant statistical value in instruction section and understanding of students section. It demonstrates that the contextual section could be improved by self-reflection or repetitive class practices, while instruction section and understanding of students section needed consulting by assistants.

• Journal of The Korean Association For Science Education
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• v.33 no.6
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• pp.1087-1102
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• 2013

The purpose of this study is to find out the influence of reflective thinking facilitation program on reflection areas and its levels that pre-service science teachers present in the class teaching practice during the student-teaching period. Seven pre-service science teachers participated in this study and only four pre-service science teachers among them were additionally trained with the reflective program. Reflections of pre-service science teachers were mostly shown on class management, including attention and motivation, reflection and improvement for teaching activities, and interactions. However, the understanding of the science curricula and their reconstruction, and advance notice about the next class were not mentioned in their reflections. Pre-service science teachers who participated in the additional reflective program have shown more frequent reflections than those who only participated in the traditional student-teaching program. Pre-service science teachers, not trained with the reflective program, mostly showed descriptive reflection. However, those who participated in the reflective program have shown higher levels of reflections such as dialogic as well as the descriptive reflection. Therefore, pre-education program, reflective journal-writings, and science teachers' assessments on class and their feedback seem to improve the frequency and level of reflection for the pre-service science teachers.