• Journal of Korean Elementary Science Education
• /
• v.19 no.2
• /
• pp.1-13
• /
• 2000

The purposes of this study were to survey the elementary students' conceptions of electric circuits and of electric currents, and to explore the relationships between them. The questionaire were developed into matched forms which corresponds to each conceptions of electric circuits and electric currents. The elementary students were selected from 4th and 5th grade in a elementary school in a large local city, which of the total numbers of students were 163. The student who have well-developed conception in electric circuits are superior in conceptions of electric currents to other student who have not in each items of questionnaire required to draw a simple basic electric circuits for lightening the bulb, to select the basic elements of circuits, to identify the arrangement of batteries and bulbs. So we concluded that the scientific conceptions of electric circuits could contribute to the scientific conceptions of electric currents, as expected in elementary science textbooks.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2005.05a
• /
• pp.1031-1034
• /
• 2005

사회생활을 통하여 직면하게 되는 다양한 형태의 문제들을 해결할 수 있는 사고력을 기르는 것은 교육적으로 매우 중요하다. 특히 남과 더불어 문제를 해결하는 능력이 가장 직접적으로 실현되는 사고 혹은 활동 형태는 바로 토론이다. 또한 토론을 통한 학습은 학습자 중심의 교수-학습 활동으로 교사와 학생 간, 학생과 학생 간의 대화를 활성화함으로써 달성하고자 하는 학습 목표를 학생들 스스로 성취 할 수 있는 길을 열어준다는데 교육적 의의가 크다. 본 논문은 기존의 웹 기반 토론 학습의 제약을 극복하는 것에 초점을 맞추어 웹 기반 토론 학습시스템을 설계하였다. 이러한 웹 기반 토론 학습시스템은 첫째, 원활한 토론 학습을 위하여 실시간 및 비실시간 토론 학습을 모두 제공해야 한다. 둘째, 토론 학습의 사회자 역할, 토론자 역할, 방청객 역할을 두어 과제 중심적 역할 유형과 사회성 촉진적 역할을 모두 실현할 수 있어야 한다. 셋째, 사회자중재를 위한 토론중단 및 토론재개 기능과 방청객 질의 응답 시작과 종료기능을 제공하야야 한다. 넷째, 기존의 웹 토론 학습을 위해 이용되는 게시판이나 대화방은 학습자 평가를 위한 기능이 없고 현장 적용에 어려움이 많기 때문에 웹 토론 학습시스템에 학습자들을 평가할 수 있는 자기평가, 동료평가, 교수자 평가 등의 평가 기능을 제공하여야 한다.

• Journal of The Korean Association For Science Education
• /
• v.27 no.4
• /
• pp.337-345
• /
• 2007

The purposes of this study are to investigate and compare the characteristics of classification criteria of secondary school students and science teachers in relation to the three statesof matter. For this research, 76 middle school students in the7th grade who studied microscopic viewpoints about classifying the state of matter for the first time, 69 high school students in the 12th grade who studied Chemistry I and IIcourses successfully, and 130 secondary school science teachers, through a questionnaire. As a result, while having learned the three states of matter in the microscopic viewpoints, the majority of middle school students showed a high percentage of classification in the macroscopic viewpoints. For high school students, their percentage of classification included highmicroscopic viewpoints about solid and gas, the percentage of classification included macroscopic viewpoints about liquid state as alsohigh. The secondary school teachers gave answers in the macroscopic viewpoints and microscopic viewpoints equally, but their answers were just representation of the viewpoints list without the meaningful connection of the two type of viewpoints. To solve these problems, It is necessary to form connective change from the macroscopic viewpoints to the microscopic viewpoints about the criteria for classifying the States of Matter and various educational efforts.

• Communications of Mathematical Education
• /
• v.37 no.1
• /
• pp.1-19
• /
• 2023

Mathematics Listening Ability(MLA) refers to the ability to listen to and grasp the meaning of speech language containing mathematical concepts and principles, distinguishing it from daily life and listening in other subject classes. According to literature, MLA might be divided into six types. Among them, interpretation, discovering, evaluating, and evaluation may indicate an attitude that correctly listens to the meaning of the language used in mathematics classes. On the other hand, selective, pretend, and ignore are types of listening attitudes that are not appropriate. Based on the statistical analysis of 834 3rd to 6th graders and a total of 44 homeroom teachers I developed a MLA survey items for elementary school students. In this study, principal component analysis was conducted to verify reliability in the development of survey items, and expert review and correlation analysis of survey results were conducted to verify validity. In addition, the validity was verified by statistically analyzing the survey results of students and their homeroom teachers. Based on literature and statistical analysis, I developed a MLA Survey items(for students) consisting of 25 questions and a mathematical resolution measurement tool(for teachers) consisting of 26 questions.

• Journal of dental hygiene science
• /
• v.12 no.1
• /
• pp.1-6
• /
• 2012

This study was practiced to provide basic data which is necessary for ethical education of dental hygiene students by comparing the bioethical perception between dental hygiene students and non-health students. Questionnaire surveys were conducted for 778 students in two universities in Gyeonggi-Do province and analyzed the collected data with SAS 9.2. The findings of the study were as follows : 1. there was no stastistical difference in the degree of bioethical perception between dental hygiene students and non-health students. 2. Students who have family member in medical field were more conscious of bioethics than students who doesn't. According to religion, the protestants were most conscious and no-religions scored the lowest. 3. In case of dental hygiene students, female was more conscious. According to religion, there were statistical differences between the Catholic and Buddhism, the Catholic and No-religion. 4. Dental hygiene students were more strongly opposed to let infant with fatal congenital disease die than non-health students. 5. Dental hygiene students were more strongly opposed to rejecting organ transplant, trade in human organs and using alternative organ of animal. Also, they estimated higher the possibility of medical irrationalities due to trade in human organs. From these results, a curriculum for bioethical education in department of dental hygiene should be developed to form and improve the more desirable bioethical perception of dental hygiene students.

• Journal of The Korean Association For Science Education
• /
• v.39 no.5
• /
• pp.625-635
• /
• 2019

Students are exposed to many visual representations in various visual cultures. Infographics combining visual representations and writing can effectively convey information. Also it can be efficient ways for teachers to focus on important contents. Students can use infographics as a method directly to organize information. Therefore, the infographics that students use both writings and images directly and visually will be more effective on elementary school science classes than the workbook. Classes are guided with the same scientific inquiry and experiment written on the science textbook. The experimental group students organized scientific inquiry by infographics, while the comparison group students still used the workbook. First, the types of infographics are determined by what students want to explain. Based on learning objectives, students used the right type of infographics to effectively convey their focus on information. Second, the infographics organizing activities used in the classes had a significant effect on students' academic achievement. Also, the infographics organizing classes are positively associated to science-related attitudes, including such+ as 'Leisure Interest in Science', 'Adoption of Scientific Attitudes', and 'Attitude to Scientific Inquiry'. Third, visual tendency and classroom treatments had no interactions, but the experimental group had a positive impact regardless of student's characteristics. Fourth, experimental group showed positive attitudes toward to students' perception of infographics. Since some of students had difficulties organizing information in infographics, further research is required to enable students to reduce their burden in application of infographics.

• Journal of The Korean Association For Science Education
• /
• v.43 no.4
• /
• pp.351-368
• /
• 2023

The scientist-led Research and Education (R&E) program aims to strengthen gifted science students' research capabilities under the guidance of scientists. Students' actual research experiences in scientist-led R&E activities range from understanding how scientists conduct research to actively participating in research. To develop R&E that promotes student agency, i.e., student participation, this study aimed to identify the pedagogical characteristics that supported gifted science students' agentic participation in the scientist-led R&E program. We conducted interviews with learners and scientists in three teams undertaking R&E activities every three months. The interview covered their perceptions of R&E activities, student participation, and scientists' support for the activities. The recordings and transcripts of the interviews were used as primary data sources for the analysis. The trajectory of each team's activities, as well as the learners' and scientists' dynamic positioning were identified. Based on this analysis, we inductively identified the pedagogical characteristics that emerged from classes in which the scientists supported the students' learning and engagement in research. Regarding agency, three types of student participation were identified: 1) the sustained exercise of agency, 2) the initial exercise and subsequent discouragement of agency, and 3) the continuous non-exercise of agency. Two pedagogical characteristics that supported the learners' agentic participation were identified: 1) opportunities for students to take part in research management and 2) scientist-student interactions encouraging learners to present expert-level ideas. This study contributes to developing pedagogies that foster gifted science students' agentic participation in scientist-led R&E activities.

• Journal of The Korean Association For Science Education
• /
• v.42 no.4
• /
• pp.383-396
• /
• 2022

In this study, pre-service chemistry teachers' questions in their teaching practices were analyzed considering the context of discourse. Five pre-service teachers participated in the study. Their questions were analyzed by considering various data including class videos, interviews, and teaching-learning materials. Their questions were classified into relevant question, affective question, dead-end question, rhetorical question, and structuring question. Each question was also classified into appropriate question and convenient question by the aspect of proper responses of students. The analyses of the results indicate the differences in the frequencies of several types of questions depending on the content of the lessons. After using convenient questions, pre-service teachers proceeded to prepared classes as they rather than prompted students' responses. The affective questions were rarely used. The dead-end questions were found to be used for promoting interaction with students. The rhetorical questions were used for various purposes such as arousing students' attention or promoting their thinking. Practical implications were discussed based on the results.

• School Mathematics
• /
• v.19 no.2
• /
• pp.289-317
• /
• 2017

This study aims to explore how Korean middle-school mathematics textbooks on functions provide students an opportunity-to-learn [OTL]. For this purpose, we investigate 3 textbooks in terms of mathematics content and practice, the level of cognitive demands of mathematical tasks, types of student responses, types of context-based tasks, and connections among the tasks. The findings from the data analysis suggest as follows: a) an opportunity-to-learn to connect procedures to functional concepts and new ideas of functions to the existing one is very limited; b) the textbooks seem to provide students an OTL to understand functions as definitions, rules and conventions and to experience repeatedly procedural executions through worked examples and mathematics tasks; c) students may not experience to explain their own ideas/thinking by using mathematical sentence or justify their own cognitive processes; and d) students can be exposed to get a sense of mathematics as a set of fragmented and isolated facts or procedures, rather than to encourage to expand and deepen their understanding of functions.

• Journal of Science Education
• /
• v.42 no.2
• /
• pp.120-131
• /
• 2018

The purpose of this study is to examine the characteristics of science gifted students' understanding of friction acting on a rolling object, and to examine the implications of teaching methods that can be derived from them. For this purpose, 48 students in grade 3 students who take advanced physics classes at the science high school for the gifted were asked to answer three questions about the friction problems. As a result, students' responses were divided into three types: rule, none-rule, and calculation. In addition, students of the rule type have difficulty in reasoning about the friction by using friction rules. We believe that students will be able to reach a deeper understanding of friction if we teach them to correctly infer the direction of friction without using friction rules, along with a strategy to emphasize relative motion in contact.