• 말소리와 음성과학
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• 제1권4호
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• pp.11-15
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• 2009

The aim of this study was to identify production difficulties of Korean learners of English in their articulation of English bilabial stops /p, b/ and labiodental fricatives /f, v/. Sixty non-sense syllables and twelve words were produced three times by nine graduate students. Test scores were measured from the score board made by FluSpeak, a speech training software program, which was designed for English pronunciation practice and improvement. Results show that 1) the subjects had lower scores in producing /p, b/ than /f, v/ from all positions, and 2) subjects had lower scores in medial (inter-vocalic) position than in initial (pre-vocalic) position and in final (post-vocalic) position when they produced /p/, /b/, /f/, and /v/. The results suggest that on the whole, Korean learners of English have much difficulty in producing /b/ and that they also have more articulatory problems in intervocalic than in the other positions when they produce these bilabial stops and labiodental fricatives.

• 음성과학
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• 제15권3호
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• pp.31-38
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• 2008

The aim of this study was to find how English vowels affect the pronunciation of English sibilants /$d_3,\;{_3}$, z/ by Korean learners of English. Fifteen nonsense syllables composed by five vowels /a, e, i, o, u/ were pronounced six times by twelve Korean learners of English. Test scores were measured from the scoreboard made by a speech training software program, which was designed for English pronunciation practice and improvement. Results show that 1) the subjects had the lowest scores in /a_a/ position, and 2) subjects had lower scores in the /i_i/ position than in /e_e/, /o_o/ and /u_u/ positions when they pronounced $/d_3/,\;/{_3}/$, and /z/ in their respective inter-vocalic position. This study found that for the group studied Korean learners of English have more difficulty in pronouncing sibilants in /a_a/ and /i_i/ positions than in the other positions.

• 음성과학
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• 제13권4호
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• pp.43-50
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• 2006

The aim of this study was to identify pronunciation difficulties of Korean learners of English in their articulation of English sibilants /dg, g, z/. Forty-five syllables were produced five times by twelve college students. Test scores were measured from the score board made by FluSpeak, a speech training software program, which was designed for English pronunciation practice and improvement. Results show that 1) the subjects had lower scores in producing /g/ than /dg/ and /z/ from all positions, and 2) subjects had lower scores in inter-vocalic position than in pre-vocalic position and in post-vocalic position when they produced /dg/, /g/, and /z/. The results suggest that on the whole Korean learners have much difficulty in producing /g/, and they also have more auditory and articulatory problems in intervocalic than in the other positions when they produce these sibilants.

• 한국환경교육학회지:환경교육
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• 제15권2호
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• pp.61-75
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• 2002

This study was intended to develop a new measure for environmental education research, named ‘Subjectively Responsible Environmental Behavior(SREB), in order to overcome a few of limitations embedded in the previous measures. The results of the study suggested that there were several barriers for learners to take environment-friendly actions, willingness to act was always stronger than self-reported act and the degree of discrepancy between willingness to act and self-reported act is correlated with perceived effectiveness, perceived difficulty, and expected guilty. In terms of participation, this study defined one of major missions of environmental educators is to help learners to identify and overcome such barriers. A new measure that this study has proposed can be better utilized to evaluate effectiveness of environmental education curriculum or programs and find information necessary for modifying the programs than to assess learners' achievement. Some limitations of the proposed measure were also discussed.

• International Journal of Advanced Culture Technology
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• 제10권2호
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• pp.98-105
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• 2022

This study's purpose is to suggest a pedagogical method based on using animated movie in liberal arts English classes and to examine the direction that using animated movie as learning material should take. To this end, in this study, the content understanding and expression concentration stages using animated movie are presented. After students learned in class through animated movie, two tests were conducted to investigate the change in learners' acquisition of English expressions. As a result, subjects' learning of English expressions showed a significant improvement over time. An open-ended questionnaire was also conducted to ascertain learners' satisfaction level and their perceptions of classes using animated movie, with learners' satisfaction found to be high overall (77.1%). Students identified the reasons for their high satisfaction rate as the following: "fun and a touching story", "beneficial composition of textbooks", "efficient teaching methods", "sympathetic topics", and "appropriate difficulty". When using video media in class, instructors should maximize and leverage the advantages of video media, which are rich both in context and in their linguistic aspects.

• 수산해양교육연구
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• 제27권1호
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• pp.160-169
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• 2015

The purpose of this study was to search and analyze the realities and needs of life long education, the necessity and perception of life competencies and the difference of competencies on experiences of education to support life long education system for adult learners in Busan and Ulsan. In this study, we conducted a questionnaire survey of 234 adult learners living in Busan and Ulsan. The results of this study were summarized as follows. First, adult learners perceived that life long education was very important to adults and appreciated an educational institution being managed by government. Second, adult learners thought that basic literacy competency and basic work competency were important and late fifties perceived that professional job is in important. Third, adult learners perceived that self directed learning and capacity of management are poor competencies. And they perceived that the government support adult learners who has economical difficulty. Forth, adult learners perceived that it was normal that 'professional job' and 'job transition abilities', 'women', 'the middle aged and old','the unemployed' and' low incomers' perceived that they have poor level. Fifth, according to the results of ${\chi}^2$ test for determining the statistical significance of differences in experience in lifelong learning among adult learner groups divided by their individual background, significant differences were observed in a few competencies(p<.05, p<.01).

• 대한치과의사협회지
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• 제58권11호
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• pp.670-682
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• 2020

This research examined the difference in cognitive load and the virtual presence depending on auditory feedback and task difficulty in haptic-based dental simulation. In the field of dental education, practice-centered training using handpiece has been crucial because a practitioner's psychomotor experience has a significant impact on the mastery of treatment skills. For the novice, it is necessary to reduce errors in dental treatment to enhancing skill acquisition in the haptic practice. In the training process, the force-feedback is crucial to elaborate subtle movement to guide what to do and how it should be hard or soft. However, It is not easy to add force-feedback to generate kinetic experience training. As an alternative method, we examined that auditory feedback can help learners' skill training. In this study, we analyzed how the presence/absence of auditory feedback at the different levels of task difficulty impacts learners' psychological demand and virtual presence in the virtual reality simulation. For this study, 29 dental college students participated in a dental simulation. The participants were grouped into two conditions that are with and without auditory feedback. Additionally, two consecutive tooth preparation tasks with different levels of difficulty were used in the simulation. The auditory feedback condition gives alarms to a learner when he treats a non-targeted tooth with a virtual handpiece. The user's cognitive load and virtual presence were measured to examine the effects of auditory feedback. The results revealed that the main effect was found in cognitive loads. Also, a significant interaction effect was shown in the virtual presence. We discussed the effective design methods for the virtual reality-based dental simulation through the result of this study.

• 컴퓨터교육학회논문지
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• 제22권3호
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• pp.55-65
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• 2019

플립러닝 방식의 프로그래밍 언어 학습 시스템에서 사이버 강의에 대한 평가는 일반적으로 온라인에서 객관식 문제로 진행된다. 이때 출제되는 문제는 문제은행에서 랜덤하게 추출하여 학습자 개개인에게 주어진다. 이러한 평가 결과가 성적에 반영되기 위해서는 시험 문제의 형평성이 무엇보다 중요하다. 특히 프로그래밍 언어 과목에서는 문제의 유형에 따라 학습자가 생각하는 난이도가 서로 다를 수 있다. 본 논문에서는 객관식 문제의 유형을 2가지로 분류하여, 각 유형별로 난이도를 관리한다. 그리고 문제의 난이도와 유형을 함께 고려한 문제 출제 알고리즘을 제시하였다. 제시된 알고리즘은 프로그래밍 언어 과목의 특성을 고려할 때 기존의 출제 방식에 비해 보다 공정하고 효율적임을 실험을 통해 확인할 수 있었다.

• 한국정보통신학회논문지
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• 제15권1호
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• pp.203-208
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• 2011

대부분의 온라인 교육 시스템들은 기존의 설정된 문항난이도를 기반으로 학습자에게 학습정보를 제공하고 있으며, 동일한 수준의 학습자는 모두 동일한 학습과정에 따라 학습을 수행하고 있다. 하지만 동일한 수준의 학습자라 할지라도 학습 내용을 이해하는 정도는 서로 다를 수 있다. 따라서 제공된 콘텐츠를 이해하기 어려움에도 불구하고 정해진 난이도와 학습과정에 따라 획일적으로 학습이 진행되는 방법은 효율적인 학습효과를 나타내기 어렵다. 따라서 본 논문에서는 온라인 학습이 제공하는 획일적 학습에서 벗어나 학습자가 학습 도중 학습 콘텐츠의 난이도를 변경할 수 있도록 함으로써, 자기주도적 학습을 지원하기 위한 콘텐츠 재구성 방법을 제시하였다. 학습자는 학습 도중 제시된 콘텐츠가 이해하기 어렵거나 쉽다고 판단되는 경우, 현재 제시된 학습 콘텐츠의 수준을 변경할 수 있다. 이때 변경된 학습 콘텐츠의 수준은 콘텐츠 재구성 모듈로 전달된다. 변경된 수준을 전달받은 콘텐츠 재구성 모듈은 전달된 학습자의 수준에 적합한 콘텐츠 및 퀴즈 문항을 추출하고, 추출한 콘텐츠와 퀴즈를 기초로 학습내용을 재구성하여 학습자에게 제시한다. 본 논문에서 제안한 방법을 이용하면 학습자는 자신의 수준에 적합한 콘텐츠를 제공받을 수 있기 때문에 학습 이해도를 높일 수 있고, 학습자의 적극적인 학습 참여를 유도함으로써 보다 높은 학습효과와 학습 만족도를 얻을 것으로 기대된다.

• 비교문화연구
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• 제27권
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• pp.497-523
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• 2012

Characteristics of the Listening and Pronunciation of Korean Obstruents of Chinese Learners -Based on the Phonetic Experiments Using Kalvin and Praat- This study aims at investigating the characteristics of confrontation in three ways, lax/ fortis/ aspirated consonants, in Korean obstruents through experimental phonetic analysis for the Chinese Korean language learners. On one hand, as a result of comparing Korean and Chinese obstruent systems, there is no big difference regarding the articulatory location. On the other hand, in regards to the articulatory method there is a difference. In a Korean obstruent system, the confrontation presented in three ways by the strength of aspiration. On the contrary, the Chinese obstruent system showed confrontation in two ways by the existence of aspiration. To examine the difficulty of the learners caused by the above-mentioned reason objectively, this paper studied the relationship between input and output of sound through the experimental phonetic analysis such as Kalvin and Praat. To research the input of sound, the listening ability of the learners was examined by 'Choosing Consonant' among the Menu of Kalvin. As a result of that experiment, many errors were shown. They recognized the fortis as lax in the area of affricates and plosives. In the area of fricatives, they recognized affricatives as fricatives. To investigate the output of sound, the section of aspiration and the section of friction of a plosive, an affricate and a fricative in Praat, were expressed numerically. The learners' VOT of lax and affricate represented that lax was pronounced close to the fortis, and the VOT of fricatives was not shown the section of aspiration and friction clearly, and also the result showed that they pronounced a fricative like affricative-aspirated one. The result shows that the learners' pronunciation is related to the listening ability. The consequence is caused by the characteristics of the difference between Korean obstruents and Chinese ones. If the training pronunciation is conducted based on above result, it would be a better methodology in teaching Korean.