• Journal of Korean Elementary Science Education
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• v.36 no.4
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• pp.405-427
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• 2017

This study aims to describe various teaching cases about 'earth revolution' in terms of PCK; knowledge of curriculum, knowledge of teaching strategies and knowledge of assessment. Based on these various cases we suggested PCK progressions about 'earth revolution'. For these, we recorded 'solar system and star' classes of nine elementary school teachers' in Kangwon, Gyeonggi, Gwangju, and Seoul. We adopted Lee & Lee (2016)'s topic-specific PCK framework to analyze the classes. As results, we suggested topic-specific PCK progression about 'earth revolution'. The results showed the upper anchor of the earth revolution class were exploring the reason of the change of constellation, finding the tendency of constellation change. These teachings were carried by the teachers' adaptive strategies. The upper anchor of the assessment was monitoring students' understanding during the whole class. The PCK progression about 'earth revolution' could help the teachers plan the earth revolution class, and reflect their own teachings.

• Journal of the Korean Data and Information Science Society
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• v.24 no.2
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• pp.321-332
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• 2013

Because of the continuous low birthrates, the number of the elementary students will decrease by 17% in 2020 compared to 2011. The purpose of this study is to forecast the number of elementary school teachers until 2020. We used the data in education statistical year books from 1970 to 2010. We used the time-series regression model, time series grouped regression model and exponential smoothing model to predict the number of teachers for the next ten years. Consequently time-series grouped regression model is a better model for forecasting the number of elementary school teachers than other models.

• Journal of Korean Elementary Science Education
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• v.25 no.2
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• pp.159-166
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• 2006

Changes in the brain activities following pre-service elementary teachers' learning hypothesis-generation were investigated using the analysis of EEG relative power and EEG coherence. In this study, the experimental group (n=16) were trained using learning methods for hypothesis-generation and the control group(n=16) were trained using learning methods for hypothesis-reception over the course of 8 weeks. EEG was measured before and following the learning process for both groups. Decreased theta ($4{\sim}7.9Hz$)/alpha 1 ($8{\sim}9.9Hz$) power and increased alpha 2 ($10{\sim}l2.9Hz$)/beta ($13{\sim}29.9Hz$)/gamma ($30{\sim}50Hz$) power were showed in the experimental group. Additionally, many changes in brian activities were observed for theta, beta and gamma coherence in the experimental group. In particular, fronto-parietal coherence increased in the experimental group. These differences in brain activities between the two groups suggest that the learning for subjects' hypothesis generation presumably leads to interesting changes in some types of brain activities in pre-service elementary teachers.

• Journal of Korean Clinical Health Science
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• v.6 no.2
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• pp.1189-1198
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• 2018

Purpose. The study was basic materials are provided to identify differences in the knowledge, attitude and performance of cardiopulmonary resuscitation(CPR) depending on the characteristics of child care teachers, and to develop an education program that will enable you to improve your future CPR performance. Methods. This study was conducted on 147 child care teachers. The questionnaire of the previous study was corrected and 48 total questions were used. Using spss 22.0 frequency analysis, T-test, ANOVA and Duncan-test were performed. Results. The knowledge level of 50s was higher those in their 20s. The higher the satisfaction level with education, the more positive was about CPR(p<.001). The more CPR training, the higher the performance(p<.01). The was a positive correlation between CPR attitude and performance ability(r=.355, p<.001). Conclusion. In order to have a positive influence on the CPR of child care teachers, the number of education should be increased and the level of education satisfaction should be managed to increase.

• Journal of Korean Elementary Science Education
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• v.40 no.1
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• pp.36-54
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• 2021

The purpose of this study was to investigate pre-service elementary school teachers' understanding about alternative energy and to identify their alternative conceptions. The two-tier instrument had been developed by Cheong et al. (2015) were used for this study. Twelve items from the instrument consisted of four categories: 'source of alternative energy', 'greenhouse gas emission', 'cost in electricity and construction' and 'advantages and disadvantages'. One hundred and fifteen pre-service elementary school teachers were participated in online survey during the semester. The results analyzed using SPSS 26.0. were as follows: First, the correct response rate varied depending on the content of item. Items related to characteristics and advantages & disadvantages of alternative energy showed high percentage of correct answers. Whereas, items regarding the principles of alternative energy showed relatively low percentage of correct answers. Second, there are some items showing statistically meaningful differences according to students' high school track. Nevertheless, there are no significant differences in overall. Third, we identified twelve alternative conceptions about alternative energy from students' answer distribution. Educational implications were discussed based on the results.

• International Journal of Contents
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• v.8 no.2
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• pp.28-35
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• 2012

This study attempted to examine the phenomenon of information society in education by exploring pre-service teachers' use of technology. Pre-service teachers from the USA and Korea participated in the study. Surveys and interviews were conducted to collect the data. The NET and ISST which are the national educational technology standards for each country were used as survey instruments. Focused interviews were conducted with 10 participants after analyzing the data for collecting more information. Based on the study results, technology is not deeply infused into education yet and the degrees of technology infusion were different in two countries. The participating pre-service teachers were not quite confident in their abilities to integrate technology into their lessons.

• Research in Mathematical Education
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• v.3 no.1
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• pp.1-8
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• 1999

The present study extends previous research in this area by investigating perceptions of change and reactions to reform efforts by pre-service and practicing secondary school mathematics teachers in the People's Republic of China (PRC) and the United States of America. Interviews were used to gather data about school experiences, teaching practices, and planned changes in mathematics programs. Analysis of the interview data supported earlier findings with respect to the well-planned nature of lessons by PRC teachers and the influence of mathematics contents and examination systems in the PRC. Findings also indicated a general agreement among teachers from both countries favoring less lecturing and more discussion and interactive activities. There were contrasts by nationality in descriptions of future teaching, ideal lessons, sources of teaching ideas, and preferences about school mathematics programs.

• Korean Parent-Child Health Journal
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• v.8 no.1
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• pp.23-36
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• 2005

Purpose: The purpose of this study was to determine the effect of an education program promoting attitude, knowledge, and practice of safety for teachers in child care centers. Method: This education was provided at one public health center in Kyunggi Province. One group pretest-post test design was used, and knowledge on safety and emergency care, practice of safety, health belief and self confidence on safety practice were assessed from 74 teachers. Theoretical framework for this program was Pender's health promotion model. Result: After two hours group education session on safety management, knowledge on safety and emergency care was significantly increased and perception on the main cause of injuries was significantly changed. Practice on safety was significantly related to the knowledge, health belief and confidence on safety, and social support. Conclusion: The education program for teachers in child care centers regarding the child safety and emergency care was effective in promoting knowledge and perception on the main cause of injuries of infants.

• Journal of the Korean Institute of Oriental Medical Informatics
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• v.22 no.1
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• pp.1-12
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• 2016

Purpose: This study was conducted to investigate the experience of health teachers on school health practice of elementary and middle high school Methods: The subjects were 15 health teachers who work in elementary and middle high school in J province. The data were collected using focused group interview and unstructured questionnaire. The contents of the interview were recorded and tranferred to computer database. The data were analyzed using Colaizzi's qualitative study methode. Results: There were 5 categoies of the themes. They were 'feeling of existence as a student's mom', 'difficults of counselling', 'difficults of goal achievement in school health practice' 'meaningfullness", and 'need of the ability improvement'. Conclusion: In order to improve the quality of the health teacher's school health practice, work overloading of the school health teachers should be decreased, their counselling skills should be trained, and they should be supported by the school and school members.

• Journal of the Korean Chemical Society
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• v.59 no.4
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• pp.308-319
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• 2015

As a follow-up study to identify references for threshold concepts in science, 20 high school chemistry teachers were interviewed. Seven concepts were identified as threshold concepts. The data revealed that teachers overcome the thresholds while they are teaching as well as learning during their school years. This explains that the mastery experience of threshold concepts involve not only the process of creating subject matter knowledge of a learner but also the reflection on or preparation for teaching. Hence, the current study proposes that a strong relationship exists between the mastery experience of threshold concepts and the development of teachers’ pedagogical content knowledge (PCK). In this regard, findings from this study will provide valuable information to understand the nature of threshold concepts and suggests the value of mastery experience of threshold concepts in terms of PCK development.