• Journal of Elementary Mathematics Education in Korea
• /
• v.23 no.1
• /
• pp.1-17
• /
• 2019

In this study, prospective teachers were involved in arranging the teaching sequence of multiplication and division of fractions and decimal numbers based on their experience and knowledge of school mathematics. As a result, these activities provided an opportunity to demonstrate the prospective teachers' perception. Prospective teachers were able to learn the knowledge they needed by identifying the differences between their perceptions and curriculum. In other words, prospective teachers were able to understand the mathematical relationships inherent in the teaching sequence of multiplication and division of fractions and decimal numbers and the importance and difficulty of identifying students' prior knowledge and the effects of productive failures as teaching methods.

• Educational Technology International
• /
• v.21 no.2
• /
• pp.193-216
• /
• 2020

This study investigated university students' perspectives on good class and instructional practices through social network analysis. The subjects were 321 students in the third and fourth academic years in a Korean university. The subjects completed four open-ended questions, asking about experience of good class, good instructors' teaching practice, and their feelings and attitudes when participating in good class. As social network analysis, KrKwic (Korea Key Words in Context) was used to compute word frequencies and analyze semantic network structures and Ucinet Netdraw to assess centrality in the social network, consisting of degree centrality, closeness centrality, and between centrality. The results are as follows. First, students showed 5 keywords to depict what good class is, including 'understanding', 'example', 'video', 'interest', and 'communication'. Second, the characteristics of teaching methods by professors who practice good class indicate 'assignments', 'questions', 'understanding', 'example', and 'feedback'. Third, the top 5 keywords of students' attitudes as participating in good class are 'active', 'participation', 'focus', 'listening', and 'asking'. Last, keywords depicting desirable class that students most wanted to take next time are 'assignments', 'rewards', 'understanding', 'difficulty', and 'interest'. The findings from this study include the meanings of the semantic network structures of words in the text making up messages. Also this study can provide empirical evidence for educators and educational practitioners in higher education to create effective learning environments.

• International Journal of Advanced Culture Technology
• /
• v.11 no.3
• /
• pp.211-224
• /
• 2023

This study surveyed 2nd graders of B high school and 1st graders of A university in Gyeongnam on factors such as behavior control and interaction in non-face-to-face classes, easy or difficult concepts presented in chemistry I and general chemistry textbooks. Based on the results of the survey, the effect of changes in the difficulty level of concepts presented in chemistry I and general chemistry and changes in class types (face-to-face and non-face-to-face) on students' academic achievement by level was compared and analyzed. In the face-to-face class, the average score between the first and second semesters was similar according to the change in the difficulty of the concepts presented in chemistry I and general chemistry. In the non-face-to-face class, the average score of chemistry I in the second semester was quite low, and the average score of general chemistry was rather high. In non-face-to-face classes, the average score of chemistry I in the second semester of low-level students was significantly lowered due to changes in the difficulty of the concept and changes in class types on academic achievement by level. In the case of 10% of students at the lower level, the academic achievement of chemistry I decreased in both the second semester regardless of the changes in the difficulty level of concepts and the changes in class types.

• Journal of Science Education
• /
• v.41 no.2
• /
• pp.213-225
• /
• 2017

Most students have difficulties and negative perceptions about physics learning. Especially, it is difficult to understand the whole context by learning based on logical-scientific thinking which excludes narrative thinking. This study aims to develop a storytelling teaching-learning method using the narrative thinking in physics lessons for improving the difficulty of students of physics learning, For this purpose, a storytelling teaching-learning method that can improve scientific attitude and understand and change the concepts was developed through literature research. The following results were confirmed its effects to apply high school students and middle school students. First, the teaching-learning method using the storytelling for high school students with low interest in learning had a significant effect in science-related occupation, interest in science and science-related activities, criticism, openness, cooperation, and spontaneity. Second, the middle school students who are active in learning recognized that teaching and learning methods using storytelling helped to understand physics concepts. The storytelling teaching-learning method developed through this study is expected to stimulate students' interest and motivation in physics and to be useful for learning concepts by improving their scientific thinking skills.

• Journal of The Korean Association For Science Education
• /
• v.28 no.2
• /
• pp.169-179
• /
• 2008

In this study, 46 teaching materials for understanding the nature of science (NOS) were developed based on the 42 statements describing the NOS. Each teaching material involves scientific knowledge and scientific inquiry skills as well as NOS statements. Teaching materials consist of students' learning worksheets and teachers' guides. Among the materials, 11 materials for understanding the nature of scientific thinking (NOST) were applied to 3 scientifically gifted students. As results, the degree of difficulty was appropriate and students showed interests in scientific thinking rather than new concepts or inquiry activities involved in the materials. It was expected that understating the NOST would be helpful for conducting scientific inquiry in more authentic way. And similarly to the Park's (2007) theoretical discussions about the relationship between the NOS and scientific creativity, students actually responded that undertrading the NOST could help their creativity. Therefore, it was expected that teaching the NOST would be plausible elements for teaching scientific creativity.

• Journal of Korean Medical classics
• /
• v.23 no.3
• /
• pp.111-125
• /
• 2010

Objective: For the purpose to establish direction, goal and methods, basic attitude survey of students in The College of Oriental Medicine is necessary. Methods: For 356 students in three years of College of Oriental Medicine, survey about difficulty, preference between two methods of memorization and comprehension, direction and effectiveness of education, connectivity and overlap between related subjects, and teaching methods, is carried out and data is analyzed by subjects. Results: 1. In Chinese Literature, the survey shows that difficulty is $6.25{\pm}1.415$, contribution to read and understand is $7.23{\pm}1.801$, contribution to understand Human Nature and Gi Idea in Oriental Philosophy is $5.42{\pm}2.071$, and preference for comprehension is $6.25{\pm}2.387$. 2. In Medical Chinese Literature, the survey shows that difficulty is $5.98{\pm}1.655$, awareness about direction of education is $6.14{\pm}1.917$, overlap with subject of Oriental Medical Classics is $5.98{\pm}1.712$. 3. In Oriental Medical Classics, the survey shows that difficulty is $6.85{\pm}1.598$, preference for comprehension is $6.88{\pm}2.554$, connectivity with historical background is $5.07{\pm}1.989$, contribution of Chinese Literature is $7.27{\pm}1.882$, contribution of Medical Chinese Literature is $7.23{\pm}1.802$, connectivity with clinical area is $3.59{\pm}1.973$, preference for article-based teaching method is $6.35{\pm}2.693$, necessity to modern analysis of Oriental Medical Classics is $7.77{\pm}1.907$. 4. In Oriental Medical History, the survey shows that difficulty is $5.39{\pm}1,615$, feeling quantity of subject is $5.87{\pm}1.521$, connectivity with Oriental Medical Classics is $4.94{\pm}2.027$. Conclusion: The more comprehensive methods must be used than memorization, and modern analysis of Oriental Medical Classics have to be connected with clinical area. In addition, more close connection between Oriental Medical Classics and History is necessary, and new diverse method of education must be developed.

• Journal of the Korean School Mathematics Society
• /
• v.17 no.2
• /
• pp.139-166
• /
• 2014

The purpose of the study is to enhance the teaching competence for pre-service elementary teacher by using DGE in order to enhance SMK and PCK for them. To do this, we investigated the initial SMK and PCK for 23 pre-service elementary teachers, the reality of implementation activity of DGE and the change of SMK and PCK after quest activity by DGE. As results, 3 pre-service elementary teachers made errors which are misunderstanding a general angle as special angle, an excessive jump of logic and a circulation logic in the aspect of an initial SMK. In the aspect of contents of PCK, most of pre-service elementary teachers proposed teaching focused on the character using in the problem solving. And most of pre-service elementary teachers proposed teaching methods which are based on explanation, measurement and material manipulation. The reality of implementation activity of DGE was classified 4 cases which are a difficulty in understanding the concept of dynamics and embodying in DGE, an obsession about construction of $75^{\circ}$ and generalization, a difficulty in interpreting 'folding activity' mathematically and a good implementation activity. After quest activity by DGE, the case which is misunderstanding a general angle as special angle could be improved, but the others are not. And after quest activity by DGE, most of pre-service elementary teachers still proposed teaching focused on the character using in the problem solving in the aspect of contents of PCK, and some of pre-service elementary teachers added only teaching methods which are involving visual confirmation by GSP. From these results, we could extract some pedagogical implications helping pre-service teachers to reinforce SMK and PCK by DGE.

• Journal of Korean Elementary Science Education
• /
• v.41 no.1
• /
• pp.93-105
• /
• 2022

This study investigated the aspects of how three preservice elementary school teachers conducted the data-text transforming discourses in their science simulation teaching and how their epistemological conversations worked for learners' construction of scientific knowledge. Three preservice teachers, who had presented simulation teaching on the seasonal change of constellations, participated in the study. The results revealed that one preservice teacher, who had implemented the transforming discourses of data-to-evidence and model-to-explanation, appeared to facilitate learners' knowledge construction. The other two preservice teachers had difficulty helping learners construct science knowledge due to their lack of transforming discourses. What we should consider for improving preservice elementary school teachers' teaching competencies was discussed based on a detailed comparison of three cases of preservice teachers' data-text transforming.

• Journal of the Korean Society for Library and Information Science
• /
• v.57 no.2
• /
• pp.5-30
• /
• 2023

At public elementary schools in areas where multicultural students are concentrated, they have difficulty understanding classes due to their lack of Korean proficiency. Multicultural teaching and learning materials produced by teachers have not been managed or reused and stored individually. To overcome this situation and increase students' learning effect, the study applied digital curation to multicultural teaching and learning materials and suggested to link the materials with a platform that can be stored, used, and shared. The study was based on B Elementary School in A City, a multicultural international innovation school under the Gyeonggi Provincial Office of Education. The process of applying digital curation to multicultural teaching and learning materials was analyzed by collecting, organizing/selecting teaching and learning materials, categorizing subject, classifying subtopic, and linking with platforms. Practical issues and policy suggestions in school settings were also proposed.

• English Language & Literature Teaching
• /
• v.12 no.4
• /
• pp.69-89
• /
• 2006

This study investigated whether and how semantic nature of intransitive verbs can be related to the L2 overpassivization errors. A total of 126 Korean high school students participated in a grammaticality judgment test on English sentences in which seven semantically different types of intransitive verbs were passivized. The results showed that there was an effect of semantic type on the students' judgment on overpassivization errors. Overall, it was shown that the students experienced the lowest degree of difficulty with the Controlled Process-Motional type verbs while experiencing the high degree of difficulty with the Change of State, Existence of State, Continuation of Pre-existing State, and Uncontrolled Process types. Two interlanguage patterns were also identified: the students at higher proficiency level and those at lower-proficiency level showed distinctive patterns on the task. It was argued that the simple dichotomy of unaccusative-unergative distinction does not suffice for the explanation of the complex phenomenon of L2 overpassivization.