• Journal of The Korean Association For Science Education
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• v.44 no.5
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• pp.361-378
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• 2024

This study explores elementary teachers' PCK change through the knowledge exchange between ePCK (enacted PCK) and pPCK (personal PCK) during modeling-based science inquiry instruction. For this purpose, three elementary school teachers were selected as research participants, and the CoRes(content representations) written by the participants before and after the lessons. The CoRes were, then, analyzed using qualitative content analysis to explore changes in pPCK, and the data related to the modeling-based science inquiry instruction (such as lesson plan, lesson videos, in-depth interviews) were analyzed using grounded theory research methods. The research indicated that the pPCK of elementary teachers who enacted modeling-based science inquiry instruction changed in regard to curricular knowledge, knowledge of students, pedagogical knowledge, and assessment knowledge. The data from the modeling-based science inquiry instruction showed that the changes of the teachers' pPCK was influenced by the knowledge exchange between ePCK and pPCK during the process of planning, teaching, and reflecting on the lessons. Based on the findings, this study discussed the need to identify personal factors that influence elementary teachers' knowledge exchange between PCK realms and suggested the need to develop effective modeling-based science inquiry teaching methods.

• Research in Mathematical Education
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• v.12 no.2
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• pp.119-126
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• 2008

In this paper, the current problems and challenges of mathematics teachers practice and conditions are discussed with an oriental perspective. What are mathematics teachers' needs of their professional practice? What contradictions and difficulties do they meet in the condition of their professional development? The problems and challenges are described with the result of a group of surveys.

• 한국데이터정보과학회:학술대회논문집
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• 2006.04a
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• pp.229-233
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• 2006

In teaching statistics in the secondary school, most math teachers do it and students enjoy it well before 11th grade. But, both of teachers and students feel statistics hard at 11th grade, which has been contained permutations, combinations, random variables, probability distributions, hypotheses and tests for normal distribution. In this study, we explore the efficient teaching methods of statistics for math teachers and also find many students enjoying it.

• Journal of the Health Care and Life Science
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• v.10 no.2
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• pp.329-339
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• 2022

The purpose of this study is to examine the experiences of new teachers in the process of preparing and implementing the 2019 revised Nuri curriculum, and to find ways to support novice teachers. For these, Data were collected through telephone interviews with 12 first-time teachers with less than 2 years of experience at private kindergartens and daycare centers in Chungnam and Daejeon, and the collected data was analyzed through text network analysis. The results are as follows. First, teachers were worried that they did not know the details of the curriculum while preparing for the 2019 revised Nuri curriculum. To supplement this, they were preparing to observe infants, share information with fellow teachers, and refer to the Nuri curriculum commentary. Also, teachers thought that they were getting help in terms of indirectly experiencing actual play cases through training. Second, the first-time teachers were providing various support by focusing on children's play while implementing the Nuri curriculum. The teachers emphasized that the good point of implementing the Nuri curriculum is that children's interests and thoughts are taken into consideration, and that children-centered play can be carried out, and that the teachers can support children's play while thinking about it. And teachers mentioned the difficulties of reading children's thoughts in children's play, grasping the topic and proceeding with the play, and the lack of time to play. In addition, starting teachers were referring to internet resources and sharing opinions with fellow teachers, and mentioned that direct experience helped them to implement the play. Lastly, teachers' interest in and observation of play, creative thinking, quickness, and willingness to support play were considered important as the competency required for teachers.

• Journal of The Korean Association For Science Education
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• v.33 no.4
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• pp.794-806
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• 2013

The purpose of this study is to analyze what kinds of science education theories are targeted in the "Examination for Appointing Secondary School Science Teachers (EASST)." For the analyses, we extracted the contents related to the science education theories in the question items of the EASST of 2008 through 2012, and categorized those theories into science curriculum, history of science and philosophy of science, scientific inquiry, theory of teaching and learning, model of teaching and learning, and assessment. The results of this study indicated that the theory of teaching and learning appeared most frequently and there were high proportions of question items related to the following topics: contents in science curriculum, scientific method, contemporary philosophy of science, process of inquiry, Ausubel's theory, learning cycle model by Lawson, cooperative learning, criteria of performance assessment, and etc. While we, as science educators, believed that the other categories such as 'history of science' provides important topics for pre-service science teachers, questions items dealing with those were rarely found in the past EASSTs. As EASST has strong influences on the professional developments of pre-service science teachers, more research should be pursued on how much and what domains of science education theories would be appropriate for the test.

• Journal of Korean society of Dental Hygiene
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• v.1 no.2
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• pp.227-242
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• 2001

The purpose of this study was 10 examine whether or not the dental- health education experiences of elementary school teachers have any influence on their oral-health awareness and attitude. The subjects in this study were 414 selected teachers from Seoul and North Cholla province. The instrument used by Lee Heung-su was modified into self- reporting questionnaire, and the schools where the subjects were working were visited to conduct a survey for 28 days from September 15 to October 13, 2000. For data analysis, SPSS was employed, and chi-squre, t-test and ANOVA were implemented. The findings of this study could be listed as below: 1. 184(44.4%) out of the techers investigated had ever been educated in dental health, and 230 teachers(55.6%) hadn't. 47% replied they hadn't received oral-health education for the lack of education opportunities. 2. In regard to dental-health awareness and attitude. the presence or absence of dental-health education experiences didn't make any difference to their daily toothbrushing frequency(p>0.05). The use of fluorine was significantly different between the groups(p<0.01), as 42.9% of the teachers with dental-health education experiences and 63.9% of the others with no such a experience didn't use that, 45.7% of the former group and 29.1 % of the latter accurately knew how to brush teeth, and the difference between the two was significant (p<0.01). 3. Concerning student-related dental-health awareness and attitude, the dental-health education experiences make 45.7% of the educated group and 31.7% of the uneducated group agreed to the strong need for oral examination, and the gap between the two was significant(p<0.01). 90.8% of the former group gave counsel to students on dental health, and 77.2% of the latter didn't. The gap between the two was significant as well (p<0.01). 77.2% of the educated group and 41.3% of the uneducated group offered frequent dental-health education, and the difference between the two was significant (p<0.01). 4. Their awareness of the fluorine-based toothbrushing project differed significantly by region(p<0.05), as the teachers from North Cholla province recognized it better than those from Seoul. The female teachers provided more education regarding that project, and those who were older or had more teaching experiences were more aggressive in instructing that project(p<0.01). And the married teachers took more forward attitude than the unmarried (p<0.01). By school location, the teachers from Seoul showed more active attitude than those from North Cholla province(p<0.01), and the gap between the two was significant. As to cooperation, those who were older or had more teaching experience were more cooperative, and the married teachers joined forces better than the unmarried. The gap was significant (p<0.01). 5. Concerning the awareness and attitude of the fluorine-based toothbrushing project, the educated teachers took more aggressive attitude, and the difference between the two was significant(p<0.01). The above-mentioned findings suggested that the dental-health awareness and attitude of the elementary school teachers were under a lot of influence of their oral-health education experiences, and there is a need to develop and carry out education programs for teacher.

• Journal of The Korean Association For Science Education
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• v.37 no.2
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• pp.263-271
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• 2017

Teacher reeducation is required to be comfortable with the 'Integrated science' subject as introduced in the 2015 revised curriculum. In this research, we designed in-service teacher training programs according to the types of secondary school science teacher's certificates, and developed ways to improve in-service science teachers' competencies. Through Delphi surveys with 22 science education experts, we investigated the features of the 2015 revised 'Integrated science' curriculum in light of its characteristics, purposes, contents system, contents, and so on, and explored teachers' competencies to teach the subject. Based on the analysis of the features of each type of secondary school science teachers' certification and required teacher competencies for teaching 'Integrated science', we developed three types of teacher training programs: in-service training courses for understanding the 2015 revised 'Integrated science' (Type A), in-service training courses for 'Integrated science' (Type B), and in-service teacher training certificate program for 'Integrated science' (Type C). For each teacher training program, we suggested the target of the training program in light of teacher certificates, operation systems, and ways to organize the program. In addition, we also suggested ways to improve 'Integrated science' teacher education programs for pre-service as well as in-service teachers, and examined ways to improve educational requirements for qualification in 'Integrated science' teaching based on the opinions of experts. Discussed in the conclusion are ways to design in-service teacher training programs for 'Integrated science' teaching and ways to improve 'Integrated science' teacher training.

• Journal of the Korean earth science society
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• v.24 no.4
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• pp.235-249
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• 2003

The purpose of this study is to analyze and evaluate the nature, role and development of pedagogical content knowledge in science teaching. Two research questions were considered: 1) What are the nature and the components of the pedagogical content knowledge in science teaching? 2) What is the value of pedagogical content knowledge and are there any routes and paths to developing pedagogical content knowledge for science teachers? In order to answer these questions instead of analyzing empirical data, former research literatures are reviewed. The results indicate that science pedagogical content knowledge is a special amalgam of science content knowledge and science method knowledge in a special context of science teaching that is uniquely the province of teacher based on their own special form of professional understanding. As a part of one's own distinctive bodies of knowledge, science teachers' pedagogical content knowledge is an important basis for professional development and competent teachers. It is knowledge of how to teach specific content in specific contexts, also it depends on each teachers' distinctive knowledge structure. Pedagogical content knowledge for science teaching is composed of five components: orientations toward science teaching, knowledge and beliefs about science curriculum, knowledge and beliefs about students' understanding of specific topics, knowledge and beliefs about assessment for teaching science, knowledge and beliefs about instructional strategies for teaching science. The development of science pedagogical content knowledge does not start until teachers have acquired a deeply principled conceptual knowledge of content, also it is promoted by the constant use of subject matter knowledge in teaching situations.

• Journal of The Korean Association For Science Education
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• v.33 no.6
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• pp.1170-1185
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• 2013

In this case study, we investigated the characteristics of secondary beginning science-gifted education teachers' reflection on their science teaching with coteaching through mentoring. We selected two beginning teachers with less than one year teaching careers in secondary science-gifted education. The teachers planned, performed, and reflected together on their science teaching for science-gifted students during twelve class hours over four times. Since the second class, pre-, during-, and post-mentorings were conducted. We observed their science classes with coteaching through mentoring, and analyzed their reflective journals in the views of productive reflection. The analyses of the results revealed that 'instructional strategies and instruction for science-gifted education' and 'science-gifted students' were most frequently included in their reflection regardless of class time. 'Curriculum for science-gifted education' were also frequently included although fewer than the two aspects. However, 'subject matter knowledge' and 'assessment in science-gifted education' were hardly included. Two to four aspects of the five were variously integrated in their reflection. The integrations among three to four aspects were especially more frequently included than those between two aspects. The integrations of 'instructional strategies and instruction for science-gifted education' or 'science-gifted students' with the other aspects were also found to be the most frequent. These results suggest that coteaching through mentoring can promote beginning science-gifted education teachers' productive reflection on their science teaching.

• Journal of The Korean Association For Science Education
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• v.39 no.3
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• pp.379-388
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• 2019

The purpose of this study is to derive implications for support plans for the settlement of the Integrated Science subject based on observations and analyses of integrated science lessons implemented in schools since 2018. For this purpose, we observed and analyzed the lessons for the same achievement standard [10 Integrated Science 07-01] implemented by four science teachers with different science majors. The features of integrated science classes were analyzed in light of curriculum reconstruction, science competency development, learner-centered participatory instruction, and process-centered evaluation aspects. For example, in terms of curriculum reconstruction, science teachers have been reorganizing achievement standards into three/four lessons, optimizing learning contents based on core concepts, and helping students' understanding of cross-cutting concepts between science areas. Regarding science competency development, teachers focused their instruction on students' cultivation of diverse science competencies closely related to the achievement standard and development of the epistemology of science. In addition, teachers emphasized student activities and teachers' role as facilitator of learning to create learner-centered participatory classes, as well as assessment during lessons with feedbacks, etc. Based on the results, we suggested and discussed ways to support the settlement of the integrated science curriculum including the need for a teacher learning community, support for process-centered assessment, and the need to develop an authentic integrated science curriculum.