• Journal of the Korean earth science society
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• v.28 no.7
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• pp.775-788
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• 2007

This study was aimed to understand the structures of preservice secondary school teachers' alternative conceptions on radioactive isotopes in the interior of earth. The structure of their conceptions were analyzed by the suggestions of Niaz (1988) based on the Lakatosian frameworks. The survey was carried out on a group of seventeen students who were major in science education. The research method was open-ended written questionnaire. The results of this study show that students had apparent alternative conceptions. The high temperature and pressure' explanation for radioactive decay in earth's interior had most import effects on their alternative conceptions. It was also intended to survey their conceptional change by our teaching strategies of the philosophy of science in order to construct science concepts.

• Journal of Engineering Education Research
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• v.14 no.4
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• pp.29-38
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• 2011

The objective of this study is the analysis of the effects of educational contents authoring in a PBL using NetLogo Pre-service teachers' creativity. With utilization of the analysis, we attempted to draw implications on the factors considered in instructional design. To compare their creativity before and after class, we have done pre-service teachers test for each Pre- and Post- TTCT and LCT. Based on the analysis, as a result, there has been a significant improvement in their creativity, most especially in the 'fluency' subcategory.

• The Journal of the Korea Contents Association
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• v.19 no.3
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• pp.466-474
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• 2019

The purpose of this study was to investigate the enhancing creative competency and changes in academic challenge for the pre-service teachers. For this purpose, 94 pre-service teachers participated in project learning through the preparation of the convergence instruction and the class demonstration during one semester. The pre and post questionnaire survey was conducted the measurement of creative leader competence and K-NSSE for academic challenge. Analysis of data was performed using the IBM SPSS 18.0 program for the corresponding sample t test. The creative competency included 'higher mental thinking', 'problem solving', 'curiosity', 'sensitivity' 'task commitment', 'the pursuit of social value', and 'co-operations and considerations'. This results was significant(p< .05). Academic challenge, high-order learning domain and learning strategies domain were significant(p< .05). Based on this, in order to generalize the convergence education and convergence lesson, it is necessary to design various convergence lessons and practice study to make a plan and practice it. In addition, the implications for the necessity of correcting and supplementing the effects after repeated convergence lessons were discussed.

• Journal of the Korean School Mathematics Society
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• v.23 no.1
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• pp.89-109
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• 2020

This study aims to improve teacher education by analyzing the causes and backgrounds of which pre-service mathematics teachers experience learning difficulties on the topic of discrete mathematics. To this end, we conducted a questionnaire and an evaluation on the topic of discrete mathematics, and the obtained data were analyzed. The results show that (1) pre-service mathematics teachers need to share their perceptions of the need for discrete mathematics education; (2) a review of the adequacy of the discrete mathematical content and its credits are required; (3) the causes of their learning difficulties need to be looked at from a different perspective than the learning factors. And two implications were obtained. First, it is necessary to study the systematicity and sequence of content elements of discrete mathematics in the aspect of its continuity of curriculum of secondary school and university. Second, it is required consideration for adjusting the ratio of discrete mathematics to secondary teachers' employment examination.

• Journal of The Korean Association For Science Education
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• v.29 no.4
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• pp.450-462
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• 2009

In this study, we investigated the influences of teaching practices upon pre-service secondary teachers' perceptions on the learning cycle by their understanding of it. Surveys on their understanding and perceptions of the learning cycle were administered to 37 seniors at the department of chemistry education in two colleges of education before teaching practices, and the survey for perceptions of the learning cycle was given to them after teaching practices. In addition, we selected seven pre-service teachers with decreased perceptions after teaching practices, and interviewed them thoroughly to investigate the factors influencing the decrease of their perceptions. The results revealed that the degree of pre-service secondary teachers' understanding of the learning cycle was not high, but their perceptions on the advantage/disadvantage of the learning cycle, their willingness to implement it, and the external aids influencing implementation were relatively positive before they practiced teaching. However, their positive perceptions more or less decreased after entering the teaching practice and the degree of decrease for those having a higher understanding of the learning cycle was larger than those having a lower understanding of it. The results of the interviews suggested the factors of pre-service teachers, students, curriculum and outside conditions as the causes of the decrease. Educational implications of these findings are discussed.

• Journal of the Korea Society of Computer and Information
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• v.27 no.3
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• pp.127-135
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• 2022

The purpose of this study was to explore pre-physical education teachers' subjective perception on the athletics practical skill test of examination system for appointment secondary physical education teachers using Q-methodology. This study found three types of pre-teachers' subjective perception on the system. Type I is named 'the type of specialized facility support demand', Type II is named 'the type of professional technical guidance demand'. Type III is named 'the type of evaluation method improvement demand' In conclusion, the pre-physical education teachers hoped for the support of specialized facilities, the opportunity to receive professional skills, and the detailed preliminary guidance on evaluation methods and procedures.

• Journal of the Korean earth science society
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• v.29 no.4
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• pp.352-362
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• 2008

This study explored pre-service teachers' mental models about eclipse phenomena to investigate their understandings on the earth science concept needed f3r an integrated approach. We conducted in-depth interviews with two different contexts on 30 secondary and 36 primary pre-service teachers participants, and analyzed phenomenological primitives (p-prims) and facets of causal explanations about eclipses. Based on this study, we identified four different levels of mental models about eclipses. Four mental models were categorized as (1) Screening model, (2) Orbital plane model, (3) Hybrid model, and (4) Shadow cast model. Screening model is a flawed mental model, orbital plane model is an incomplete correct mental model, and shadow cast model is a scientifically correct mental model. Hybrid model, composite of two or more mental models, use multiple mental models simultaneously. Orbital plane model was the most widespread mental model in secondary pre-service teachers group, whereas screening model was used frequently in primary group. It was found that the level of mental model could be determined by the level of facet and p-prims. We confirmed context sensitivity of the mental models and perceived the necessity of integrated approaches to promote progression of mental models. Implications of our findings for enhancing pre-service science teachers' topic-specific pedagogical content knowledge (PCK) associated with eclipse phenomena are also discussed here.

• Journal of the Korean Chemical Society
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• v.53 no.4
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• pp.432-444
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• 2009

In this study, we investigated the perceptions and the educational needs of pre-service primary and secondary teachers on cooperative learning in science. The survey was administered to 102 seniors at the department of science education in three universities of education and 64 seniors at the department of chemistry education in three colleges of education. The results revealed that the pre-service primary and secondary teachers learned the theories and experienced the practices on cooperative learning through various methods in the several subjects, and especially had many difficulties in appling cooperative learning to the demonstrations and/or the actual science classes. The degree of their understanding on cooperative learning was comparatively high, and the perceptions on the advantage/disadvantage of cooperative learning in science, the willingness practicing it, and the outside aids influencing on implementing it were relatively positive. They highly perceived on the necessities of diverse educations related on cooperative learning in science in pre-service teacher education processes. The willingness implementing cooperative learning in science class was significantly correlated with the necessities of diverse educations. These were also significantly correlated with the perceptions on the advantage/disadvantage of cooperative learning in science, the educational assessments on the advantage/disadvantage of it, and the educational assessments on the outside aids influencing on implementing it, respectively. Educational implications of these findings are discussed.

• Journal of Educational Research in Mathematics
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• v.19 no.3
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• pp.409-423
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• 2009

The purpose of this study is to probe into student teachers' understanding of mathematics content knowledge and to identify the features of knowledge which is required to be emphasized in the elementary teacher education. For this, student teachers attending teacher preparation courses in Korea and Hong Kong were interviewed on tasks encompassing the 'what', 'why' and 'how' aspects of elementary mathematics. It was found that for the student teachers in the sample, their understanding of the concepts behind elementary mathematical topics was not very thorough. They were unable to retrieve the advanced mathematics that they learned in their advanced mathematics courses. It is suggested that for student teachers in mathematics, it is essential that the advanced mathematics they learn be explicitly related to the elementary mathematics they have learned in school.

• Journal of The Korean Association For Science Education
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• v.30 no.4
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• pp.429-436
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• 2010

In this study, the difficulties experienced by secondary preservice science teachers in studying the theory of science education for teacher selection test were studied. At first, questions of the internet cafe for preparing the teacher selection test from January 2008 to June 2009 were analyzed in terms of content area. A survey was also administered to 39 preservice science teachers who took the teacher selection test. The rubric used in this study was developed by the Korea Institute for Curriculum and Evaluation and the Korean Association for Science Education. As a result, the most frequent question areas were 'philosophy and history of science' and 'theories and models of teaching and learning science'. In the survey with the preservice science teachers, the most difficult content area was the philosophy of science. The application of teaching and learning model was also one of the most difficult areas. Based on these results, educational implications were discussed.