• Journal of Science Education
• /
• v.47 no.2
• /
• pp.192-210
• /
• 2023

This study was intended to develop the plant molecular biology experimental program using Rapid-cycling Brassica rapa (RcBr) based on the teaching steps and teaching methods of the cognitive apprenticeship model and to determine its application effects. In order to improve a subject's cognitive function and expertise on molecular biology experiments, two themes composed of a total 8 class sessions were selected: 'Identification of DFR gene in purple RcBr and non-purple RcBr' and 'Identification of RcBr's genetic polymorphism site using the DNA profiling method'. Research subjects were 18 pre-service teaching majors in biology education of H University in Chungbuk, Korea. The effectiveness of the developed program was verified by analyzing the enhancement of 'cognitive function' related to the use of molecular biology knowledge and technology, and the enhancement of 'domain-general metacognitive abilities.' The effect of the developed program was also determined by analyzing the task flow diagram provided. The developed program was effective in improving the cognitive functions of the pre-service teachers on the use of knowledge and technology of molecular biology experiments. It was especially effective to improve the higher cognitive function of pre-service teachers who did not have the previous experience. The developed program also showed a significant improvement in the task of metacognitive knowledge and in the planning, checking, and evaluation of metacognitive regulation, which are sub-elements of domain-general metacognitive abilities. It was found that the developed program's self-test activity could help the pre-service teachers to improve their metacognitive regulation. Therefore, this developed program turned out to be helpful for pre-service teachers to develop core competencies needed for molecular biology experimental classes. If the teaching and learning materials of the developed program could be reconstructed and applied to in-service teachers or high school students, it would be expected to improve their metacognitive abilities.

• Journal of Korean Home Economics Education Association
• /
• v.26 no.1
• /
• pp.119-134
• /
• 2014

This research looks at the effects of portfolio-based lessons to help female middle school students understand and develop their self identity, and to examine the influence of various factors within the school and home environment. The participants were 256 female middle school students in Gangneung-si, Gangwon-do and the analysis was done using the SPSS/WIN 12.0 program. The 6 portfolio-based teaching lessons were made with the aim of developing each subordinate scope in every module for development of self-receptiveness, uniqueness, closeness, tendency of planning the future, and independence. Results of the pre and post-test revealed that scores of self-receptiveness and uniqueness increased. Content analysis revealed that the students pursued their talents and interests through the portfolio activities, and made specific plans for their future careers. In sum, the results demonstrate that the students became specifically and systematically concerned about their future career. The results of hierarchical regression showed that self-receptiveness developed when their parents' attitudes were not rejecting and their peer relationships were positive. Uniqueness was shown to develop as the fostering attitudes of parents were receptive. Closeness developed as fostering attitudes of parents were receptive and as their relationships with peers were positive. The students' tendency to plan the future developed as fostering attitudes of parents were receptive and as their relationships with teachers were good, and independence was shown to develop as the fostering attitudes of parents were not rejecting. Results of a two-year follow-up study appeared that self-receptiveness scores decreased as time passed, so students had highest scores in their first year and lowest scores in their third year. Scores of uniqueness, tendency of planning the future, and identity increased in the students' second year and then remained steadily afterward.

• Journal of the Korean Chemical Society
• /
• v.60 no.5
• /
• pp.342-352
• /
• 2016

The purpose of this study was to investigate inquiry-based science instruction developed and implemented by a pre-service chemistry teacher regarding the difficulties that she encountered and the ways how she tried to solve out problems. Main data of this study were pre-service teacher reflections that were written after developing both each lesson plan and the whole 10 lesson plans, and after implementing both each lesson and the whole classes. Supplemental data were lesson plans, class audio recordings, and student written journals. The pre-service teacher learned that she was lack of science content knowledge and understanding of students’ understandings. Also she had difficulties of developing inquiry-based science lesson plans, managing classrooms, and guiding students to engage in science inquiry. In order to overcome the difficulties, she asked for advice to experienced teachers, studied science concepts using textbooks and internet resources, provided detailed and concrete guidance for student argumentation and writing.

• Journal of The Korean Association For Science Education
• /
• v.37 no.1
• /
• pp.143-154
• /
• 2017

Science inquiry has long been emphasized in Korean science education. Scientific modeling is one of key practices in science inquiry with a potential to provide students with opportunities to develop their own explanations and knowledge thereafter. The purpose of this study is to investigate teacher's understanding of models in science and science teaching. A professional development program on Models (PDM) was developed and refined through three times of implementation while teachers' conceptions of models and modeling were examined. A total of 29 elementary and secondary teachers participated in this study. A survey based on model use of scientists in the history of science was developed and used to collect data and audio recordings of discussions among teachers and artifacts produced by the teachers during PDM were also collected. Three ways of ontological and two ways of epistemological understanding of models and modeling were found in teachers' ideas. After PDM, a quarter of the teachers changed their ontological understanding whereas very few changed their epistemological understanding. In contrast, more than two thirds of the teachers deepened and extended their ideas about using models and modeling in teaching. There were no clear relationships between teachers' understanding of models and ways and ideas about using models in science teaching. However, teachers' perceptions of school conditions were found to mediate their intention to use models in science teaching. The findings indicate possible approaches to professional development program content design and further research.

• Culinary science and hospitality research
• /
• v.16 no.2
• /
• pp.185-198
• /
• 2010

The purpose of this study is to examine the relationship between students' satisfaction levels with culinary practice facilities and adaptation to college life according to their educational experience before joining university. Two hundred culinary arts majors from three universities were sampled and 191 questionnaire copies analyzed. The analysis results are as follows. First, the adaptation level of the group with educational experience was partly higher than that of the group without educational experience. Second, the adaptation level of the group with a relatively high satisfaction level was higher than that of the rest. Third, when the satisfaction level with the facilities for culinary practice was high, the group without educational experience showed a higher level of attachment to university and better physical adaptation than the group with educational experience. Whereas the latter showed a higher level of emotional and social adaptation than the former When the satisfaction level with the facilities for culinary practice was low, the group without educational experience showed a higher level of attachment to university than the group with educational experience. On the other hand, the latter showed a higher level of social, emotional and physical adaptation than former. Therefore, in order to create a future-oriented harmonious teaching and learning experience, a new educational cooking environment that is fully functional and serves to heighten the satisfaction level of students should be designed.

• The Journal of the Korea Contents Association
• /
• v.18 no.4
• /
• pp.550-566
• /
• 2018

In the era of the 4th industrial revolution, enhancing achievement evaluation based on process oriented instruction is essential. It assists human growth both cognitively and mentally. The purpose of this study is to analyze current condition of high school achievement evaluation in Daejeon region for enhancing English class based on achievement Assessment. Analyzing high school achievement evaluation plans as well as analyzing items of paper and pencil test using TELL program was conducted. Reanalysis of global citizen theme-based English according to core achievement standard was performed. The questionnaire was analyzed using the SPSS Win 20.0 Program to figure out significant difference of instructional method, the rate of students' grade improvement, English class related to the state of career recognition. T-test, ANOVA was performed to determine if there was a difference between the individual instructional variables. The research result is designed to construct or develop English class based on achievement evaluation while providing each high school with the result of current state of high school achievement evaluation. Specific characteristics of individual achievement result was conducted in terms of analyzing distribution of answer sheet response in order to be used as information for managing each high school achievement evaluation.

• Journal of The Korean Association For Science Education
• /
• v.39 no.6
• /
• pp.707-715
• /
• 2019

The self-directed inquiry to improve students' core scientific competency is an important teaching method. Students experience a variety of difficulties in carrying out their inquiry tasks, sometimes fail to produce the desired results, or fail to perform a meaningless inquiry. This study was conducted to identify the causes of difficulties and failures in students' self-directed scientific inquiry. The study involved 16 high school students with experience in science research at science high schools and science-focused high schools. The data collection consisted of in-depth interviews centered on semi-structured open questions. Qualitative data analysis was imputed by finding paragraphs from the interview material that might reveal the difficulties and failures experienced by participants and the reasons for them. The study found that most of the causes of failure were lack of ability, incomplete procedures, and selection of complicated tasks. A variety of cognitive biases, such as overconfidence, planning fallacy, and groupthink, were also analyzed as causes. Based on the results of the study, it is necessary to develop an educational strategy that students can be fully prepared to reduce their trials and errors in a self-directed inquiry maximally.

• 대한공업교육학회지
• /
• v.41 no.2
• /
• pp.24-47
• /
• 2016

The purpose of the this study is to analyze consulting demands in vocational education and training (VET) high schools participating the apprenticeship system in Korea. The results of the study are as follows. Firstly, there are 9 sections of consulting that teachers in charge of apprenticeship program in VET high schools demanded. Especially, the demands for the consulting that related with 'student evaluation', 'apprenticeship program development and organization planning of schools' curriculum', 'selection and management of enterprises', 'organization of apprentices classes and student management', 'teaching & learning activities and textbook development' were relatively high. Secondly, there were differences in demands of consulting by VET high schools' current management status. By the type of organization, demands for consulting of both 'training center in main school' of organization and 'training center in common' of organization were higher than 'independent school' of organization generally. By the type of apprenticeship program hours, demands for consulting of both 'above 1400 hours' and '1200 ~ 1400 hours' were higher than 'less than 1200 hours' generally. By the type of OJT operation, demands for consulting of 'a type of OJT that is operated in long term(more than 2 weeks)' were higher than 'a type of OJT that is operated weekly' generally. As a result from above, there are some pre-requisites for the stable operations of VET high schools. 1) The apprenticeship program shall be developed not to interrupt school's regular curriculum. 2) For the smooth management between apprenticeship program and school curriculum, the academic calender has to be established so as the type of OJT operation. 3) The cooperation among the participating schools in part of the organization is unavoidable.

• Education of Primary School Mathematics
• /
• v.25 no.2
• /
• pp.143-160
• /
• 2022

This study was conducted to discuss educational implications by analyzing the types of mathematical thinking that appeared in challenge math in 5th and 6th grade math teacher's guidebooks. To this end, mathematical thinking types that can be evaluated and nurtured based on teaching and learning contents were organized, a framework for analyzing mathematical thinking was devised, and mathematical thinking appearing in Challenge Math in the 5th and 6th grade math teachers' guidebooks was analyzed. As a result of the analysis, first, 'challenge mathematics' in the 5th and 6th grades of elementary school in Korea consists of various problems that can guide various mathematical thinking at the stage of planning and implementation. However, it is feared that only the intended mathematical thinking will be expressed due to detailed auxiliary questions, and it is unclear whether it can cause mathematical thinking on its own. Second, it is difficult to induce various mathematical thinking at that stage because the questionnaire of the teacher's guidebooks understanding stage and the questionnaire of the reflection stage are presented very typically. Third, the teacher's guidebooks lacks an explicit explanation of mathematical thinking, and it will be necessary to supplement the explicit explanation of mathematical thinking in the future teacher's guidebooks.

• Journal of the Korea Society of Computer and Information
• /
• v.29 no.8
• /
• pp.223-230
• /
• 2024

The purposes of this study is to find out how to use Generative AI by class stage and class model so that classes can be planned using various Generative AI in elementary and secondary education. To this end, contents of using Generative AI according to general instructional stages and instructional models by school level and subject were developed, and revised and supplemented through review by 13 field experts. As for the method of using Generative AI by class stage, general class stages were divided into three stages: 'class preparation', 'in class', and 'class arrangement', and the subject of using Generative AI at each stage, the contents of using it, and the types of Generative AI that can be used are summarized. As a method of using Generative AI according to the class model, eight class contents were developed based on teaching and learning models according to the characteristics of each school level and subject. In order to expand the use of Generative AI in elementary and secondary classes, it is necessary to develop more diverse class contents by school level and subject and distribute them in the field. It is also necessary to develop educational materials on matters to consider when using Generative AI in class.