• Journal of the Korean Institute of Educational Facilities
• /
• v.5 no.2
• /
• pp.40-48
• /
• 1998

A Considerable number of middle and high schools has an educational program that allows the students to move from one class to another according to their academic achievements. It is, however, performed in existing classrooms with uniform pattern, corresponding to the launch of the 7th curriculum (scheduled to practice in 2000). This research is to investigate the current situation of IILA and to collect the teachers opinions and their demands regarding spatial change to accommodate IILA effectively. This research is also to acquire a fundamental data to set up a prototype for designing a school building for IILA in future. The research process includes surveying the current circumstances of IILA in 136 middle and high schools in Seoul and Pusan, and performing interviews for 9 schools. The research results revealed that there was lack of classrooms to comply IILA in most cases and inconvenience resulted in moving from class to class. It also showed that majority of students experienced unhandy due to limited lockers for the personal belongings. It is also found that the IILA was not a practice for offering various teaching methods but simply an aspect of grouping students based upon their academic achievements.

• Research in Mathematical Education
• /
• v.25 no.4
• /
• pp.267-284
• /
• 2022

In response to the current educational situation of students' heavy workload, the author constructs the precision-targeted classroom based on Precision Teaching (PT), Network Pharmacology, and Treatment Based on Syndrome Differentiation. The precision-targeted classroom can solve the current problems of PT and the phenomenon of the heavy academic burden on students, achieve the reduction of the burden and increase the efficiency of education. The precision-targeted classroom includes five key points: targeted goals, childlike thinking, precise intervention, intelligent homework, and stereoscopic evaluation, and the implementation process of the precision-targeted classroom is built from three aspects: before, during and after class. In addition, the author applied it to the actual mathematics classroom to test its teaching effect, and the experimental results showed that: the precision-targeted classroom significantly improved students' academic performance and thinking level; considerably improved students' classroom learning status, and facilitated teaching personalization and realized homework quantity control and quality improvement.

• 제어로봇시스템학회:학술대회논문집
• /
• 1992.10a
• /
• pp.7-12
• /
• 1992

This paper proposes a sensor-based path planning method which utilizes fuzzy logic and neural network for obstacle avoidance of a mobile robot in uncertain environments. In order to acquire the information about the environment around the mobile robot, the ultrasonic sensors mounted on the front of mobile robot are used. The neural network, whose inputs are preprocessed by ultrasonic sensor readings, informs the mobile robot of the situation of environment in which mobile robot is at the present instant. Then, according to the situation class, the fuzzy rules are fired to make a decision on the mobile robot action. In addition, this method can be implemented real time since the number of fuzzy rules used to avoid the obstacle is small. Fuzzy rules are constructed based on the human reasoning and tuned by iterative simulations. The effective of the proposed avoidance method is verified by a series of simulations.

• Journal of Korean Academy of Fundamentals of Nursing
• /
• v.14 no.3
• /
• pp.351-360
• /
• 2007

Purpose: The purpose of this study was to develop a Problem-Based Learning (PBL) package, test its application and evaluate students' recognition of the effectiveness of PBL in nursing colleges. Method: Thirteen steps were used in the process developing the PBL package. After its application, the first questionnaire for self-evaluation and satisfaction with PBL class was given to 94 nursing students in December, 2005. To further evaluate the students' recognition of the effectiveness of PBL, a second questionnaire was given to 83 nursing students out of the 96 in May, 2007 after clinical practice. Data analysis was conducted using means with standard deviation. Results: The results of students' self-evaluation showed high achievement in learning outcome and process using the PBL method. Also, they expressed satisfaction with the subject management, the lecturer and their peers after the PBL class. Students recognized that the PBL class had positive effectiveness in clinical practice and wanted more PBL classes and the inclusion of complex cases from well designed packages. Conclusion: PBL class could be considered as an opportunity to fortify student nurses' abilities to adjust to the real clinical situation.

• Journal of Elementary Mathematics Education in Korea
• /
• v.21 no.1
• /
• pp.215-241
• /
• 2017

This study analyzed teachers' Pedagogical Content Knowledge (PCK) regarding the pedagogical aspect of the instruction of ratio and rate in order to look into teachers' problems during the process of teaching ratio and rate. This study aims to clarify problems in teachers' PCK and promote the consideration of the materialization of an effective and practical class in teaching ratio and rate by identifying the improvements based on problems indicated in PCK. We subdivided teachers' PCK into four areas: mathematical content knowledge, teaching method and evaluation knowledge, understanding knowledge about students' learning, and class situation knowledge. The conclusion of this study based on analysis of the results is as follows. First, in the 'mathematical content knowledge' aspect of PCK, teachers need to understand the concept of ratio from the perspective of multiplicative comparison of two quantities, and the concept of rate based on understanding of two quantities that are related proportionally. Also, teachers need to introduce ratio and rate by providing students with real-life context, differentiate ratios from fractions, and teach the usefulness of percentage in real life. Second, in the 'teaching method and evaluation knowledge' aspect of PCK, teachers need to establish teaching goals about the students' comprehension of the concept of ratio and rate and need to operate performance evaluation of the students' understanding of ratio and rate. Also, teachers need to improve their teaching methods such as discovery learning, research study and activity oriented methods. Third, in the 'understanding knowledge about students' learning' aspect of PCK, teachers need to diversify their teaching methods for correcting errors by suggesting activities to explore students' own errors rather than using explanation oriented correction. Also, teachers need to reflect students' affective aspects in mathematics class. Fourth, in the 'class situation knowledge' aspect of PCK, teachers need to supplement textbook activities with independent consciousness and need to diversify the form of class groups according to the character of the activities.

• Journal of the Korean Society of Earth Science Education
• /
• v.15 no.2
• /
• pp.273-284
• /
• 2022

This study was conducted to examine the practical and educational implications of teachers' operation of the curriculum through science and online classes based on data collected for 4 months from 4 teachers who had experience in science subject online classes among homeroom teachers in the 3rd to 6th grades of elementary school in D city. This study was conducted through narrative inquiry. As a result of conducting interviews and in-depth interviews based on the online class experiences of the Earth Science Unit of the study subjects, and conducting field classes with related documents such as online class-related materials and teacher journals, teachers were more likely to take online classes compared to traditional face-to-face classes. They spent more time preparing and showed difficulties in the process of adapting to the new medium used in online classes. In addition, they demanded the provision of scientific materials produced in a pandemic situation and a teaching platform for smooth class operation. In particular, in the case of experimental classes, there is a burden of completing the planned curriculum, and in a pandemic situation, students felt the need for individual experimental tools for intensive science classes. As a result, it is necessary to introduce a blended learning learning system that combines the advantages of face-to-face and online classes as a new class form for the transition to future education in preparation for the pandemic. Continuous teacher research on the format and online class experience is required.

• Journal of Fashion Business
• /
• v.4 no.3
• /
• pp.91-102
• /
• 2000

As an economy approach new state of affairs under the influence of the Shil-Hak philosophy, the Joshun society at 18th century gave common people to a chance to impress and to patronize the Arts. This social environment made an artist to drawing see and feel, this is a genre picture. Hong Do Kim(1745-1816 or 1818) was a typical genre picturer of Joshun, his picture reflected the time truthly and honestly and described vividly a life of common people, so expressed Realism what based on the actual. Therefore the purpose of this study is to analyze and to study costume of common people and their life style. The costume in a genre picture books are summarized. Man's basic dresses were Jugori and Baji uniformity, but based on the job or situation those had a little variation. People of a blacksmith shop wore that to enlarge sleeve of Bagi and Jugori and wore Strow Sandle exactly, in that way prepared for danger of treating hot iron. On the side, in the summer, Soikojambangiee and Deungguri jucksam wore at grain. The majority of hair style was Minsangtoo that Manggun not to be surrounded a head. Womam's basic dresses were Chima and Jugori, it was not to be different in compare with a woman of the aristocratic class, extremely appeal simplicity. But it was not to be of no accent on fashion even if common people, they wore a shot Dangko jugori that busts were seen below Jugori. A hair style was simple hair that her braid placed aboved a head, different with very richful hair style, Gachae that one‘s braid hair placed above a head, a hair style of woman of the aristocratic class and Kinuer. Because of common people's costume are not a special thing expect for basic dress-Jugori, Baji, Chima, many historical books or articles about costume are not existed. As the results of this study on costume of common people's life, we found that basic dresses appeared to a various types based on the job and the situation.

• Journal of the Korea Society for Simulation
• /
• v.29 no.2
• /
• pp.73-81
• /
• 2020

HCCL stands for Heterogenous Container Class Library. HCCL is a library that allows heterogeneous types of data to be stored in a container as a single record and to be constructed as a list of the records to be stored in database. With HCCL, encryption/decryption can be done based on the unified data type. Recently, IoT sensor which is embedded in smartphone enables developers to provide various convenient services to users. However, it is also true that infringement of personal information may occur in the process of transmitting sensor information to API and users need to be prepared for this situation in some sense. In this study, we developed a data model that enhances existing security using SEED cryptographic algorithms while managing information of sensors based on HCCL. Due to the fact that the Android environment does not provide permission management function for sensors, this study decided whether or not to encrypt sensor information based on the user's choice so that the user can determine the creation and storage of safe data. For verification of this work, we have presented the performance evaluation by comparing with the situation of storing the sensor data in plaintext.

• Journal of Korean Elementary Science Education
• /
• v.38 no.3
• /
• pp.331-344
• /
• 2019

This study aims to analyse science-gifted elementary students' perception of speech in general school class, school science class, and science-gifted class and the relationship between their voluntary speech and scientific creativity. For this, 39 fifth-graders in the Science-Gifted Education Center at Seoul Metropolitan Office of Education in Korea were asked about their frequency of voluntary speech on each class situation, the reasons for such behavior, and their general opinions about speech. Also, researchers collected the teachers' observation on students' speech in class. To get the scores for students' scientific creativity, four different subjects of tasks were presented. The students' scientific creativity scores were used for correlation analysis with their frequency of speech. The main findings from this study are as follows: First, science-gifted elementary students tended to be passive in science-gifted class compared to general school and school science class. Second, the main reason for the low frequency of students' speech in school classes is that they do not have many opportunities to make presentations. Third, a survey of students' general thoughts on speech showed that more students wanted to make a speech voluntarily in class than the opposite. Fourth, the four different scientific creativity tasks had little correlation. Fifth, the correlations between the frequency of voluntary speech and the scores of scientific creativity were mostly low, with significant results only for plant task. Sixth, the correlations between the frequency of voluntary speech and the two components that make up scientific creativity, originality and usefulness, were also mostly low, but significant results for both were found in plant task, with originality having a higher correlation than usefulness. Based on this results, this study discussed the meanings and implications of students' voluntary speech on elementary science education and creativity education.

• Communications of Mathematical Education
• /
• v.35 no.3
• /
• pp.341-358
• /
• 2021

Corona, which first broke out in 2020, has caused many changes in many parts of society. Education was not an exception to this change. Teachers had to prepare online classes and students were asked to participate in it without sufficient preparation. Regarding online learning, many studies, in the field of developing teaching module and material or observing the satisfaction of online class, were conducted but there was no study based on how online class is happening in school. Therefore, this study was to investigate the current situation and satisfaction of online class for high school students and explored the relationship between sub-elements of mathematics learning and the level of satisfaction of online learning. As a result, mathematics online class was generally conducted in the form of real-time interactive classes and students felt a little satisfied with it. However, some conflicting opinions were expressed on the continuation of mathematics online learning. In addition, the study found that the higher level of satisfaction students have with online class, the difference appears in the sub-elements of learning mathematics such as values of mathematics, and motivation to learn, willingness to learn mathematics, learning strategies according to the safisfactory level of online class.