• 제목/요약/키워드: Experimental Observation

검색결과 1,434건 처리시간 0.034초

초등학교 과학실험 기구 조작 기능에 대한 관찰 평가 준거 개발 - 초등학교 화학 단원을 중심으로 - (The Development of the Observation Assessment Criteria concerning the Manipulative skills in Elementary School Science)

  • 최행숙;백성혜
    • 한국초등과학교육학회지:초등과학교육
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    • 제18권1호
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    • pp.65-73
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    • 1999
  • The purpose of this study is tile development of tile observation Assessment criteria that is used to assess manipulative skills in elementary science. The procedures of developing observation Assessment criteria are as follows. First, we investigated the actual condition about science process skills assessment with tile questionnaire. Second, we selected 7 experimental apparatus through the analysis of the science textbooks. The selected experimental apparatus are dropper, alcohol lamp, thermometer, test tube, filtering device, able balance, graduated cylinder Third, the observation Assessment criteria arc developed through tile analysis of the related experimental textbooks, the demonstrations, and the questionnaire, Forth, tile validity is verified by science education specialists and graduate students who major in science education. Fifth, the first jilter-rater agreement is investigated in the result of the field with observation criteria of which the validity was verified. The second inter-rater agreement is investigated through the revision and the addition of the criteria with the low agreement. In result, the jilter-rater agreement ranged from 0.86 to 0.98. One of the major problems in observation assessment is the rater's subjective viewpoint. So, this research shows a more specified scale and criteria for the assessment. This suggests that the observation Assessment criteria developed in tile study satisfies the high reliability and validity requirements. Considering the results, this criteria call be used effectively for assessing manipulative skills of elementary school students.

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몸의 움직임과 의상의 관찰체계 연구 (Developing an Observation System for Body Movements and Clothes)

  • 임소영;하지수
    • 한국의류학회지
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    • 제47권3호
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    • pp.531-543
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    • 2023
  • Unlike a still body in a photograph, the concept of time applies to a moving body wearing clothes. Clothes change shape according to movement, and multidimensional formative observation elements are required to perceive this. Thus, the purpose of this research is to develop a system for observing body movements and clothing. This experimental study was designed based on embodiment research. The first stage of the study derived body movement and clothing observation items from theory. In the second stage, 11 fashion personnel participated in experimental research to verify the observation items and identify those that needed correction or supplementation. The results showed that body movement and clothing observation items can be classified as follows: large moving bodies, moving clothes, body and clothes movement, and body and clothes space. The observation system for body movement and clothes presented can be used to construct the formation of moving clothes.

과학적 관찰 전략을 적용한 과학수업에서 초등학교 6학년 학생들의 관찰지식 생성에 대한 연구 (A Study on Observation Knowledge Generation Using the Scientific Observation Strategy in 6th Grade Students)

  • 이혜정;이근경;권용주
    • 한국과학교육학회지
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    • 제30권1호
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    • pp.13-26
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    • 2010
  • 이 연구는 초등학교에서 과학적 관찰 전략을 적용한 과학 수업이 관찰지식 생성에 미치는 효과를 알아보는 것이다. 이를 위하여 교육과정 분석을 통해 관찰과 관련된 수업주제를 선정하고, 관찰의 방법과 대상에 따라 체계적인 관찰이 이루어지도록 학습지와 스토리보드를 개발하였다. 이 연구를 위해 초등학교 6학년 학생을 대상으로 실험집단 38명, 통제집단 37명을 선정하였다. 실험집단에는 14차시에 걸쳐 과학적 관찰 전략을 적용한 수업을 실시하였으며, 통제집단에는 실험집단과 동일한 주제와 차시에 걸쳐 전통적 수업을 적용하였다. 실험 집단과 통제 집단 모두 수업처치 전후에 촛불 관찰 과제로 과학적 관찰 전략을 적용한 수업의 효과를 검증하였다. 연구 결과, 과학적 관찰 전략을 적용한 과학 수업이 전통적 수업에 비해 다양한 관찰 지식을 생성하는데 효과적이었다. 생성된 관찰 사실들에 대한 관찰 지식의 수와 다양도 측면에서 학생들의 관찰력을 정량적으로 평가한 결과, 수업 처치 후 실험집단의 관찰지식의 수와 다양도에서 유의미한 차이가 보였다. 또한 절대 관찰력 지수에서도 실험 집단이 통제 집단보다 관찰력 지수가 높아졌음을 알 수 있었다. 이는 과학적 관찰에 대한 체계적인 지도 전략은 학생들의 과학적 관찰 지식 생성력을 향상시키는데 효과적일 수 있음을 시사한다.

자기관찰훈련을 병행한 과제보행운동이 뇌졸중 환자의 다리 근활성도와 보행에 미치는 영향 (The Effect of Task Gait Exercise Combined with Self-observation Training on Leg Muscle Activity and Gait in Stroke Patients)

  • 강정일;백승윤;정대근
    • 대한물리의학회지
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    • 제17권3호
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    • pp.59-67
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    • 2022
  • PURPOSE: This study examined the effectiveness of task gait exercise combined with self-observation training to provide basic clinical data by analyzing the factors that task gait exercise combined with self-observation training has on the leg muscle activity and gait improvement in stroke patients. METHODS: The subjects were assigned randomly to experimental Group I, which mediated task gait exercise combined with self-observation training, and experimental Group II, which mediated task-walking movement. They received 30-minute interventions three times a week for four weeks. The leg muscle activity and 10 m walking test (10MWT) were conducted as pre-intervention tests, and they underwent a post-test four weeks later in the same manner as the pre-test. RESULTS: A statistically significant difference was observed in all muscles and 10MWT (p < .01) in experimental group I (p < .05), while there were significant differences only in the rectus femoris, biceps femoris, and 10MWT (p < .05). In a comparison of the changes between groups, there were statistically significant differences only in the tibialis anterior, soleus muscle, and 10MWT (p < .05). CONCLUSION: Self-observation training in experimental group I was effective in increasing the leg muscle activity and improving walking speed by discovering and correcting incorrect movements and following a normal gait pattern using the ankle joint. Therefore, the task gait exercise combined with self-observation training should be introduced and actively utilized for the rapid social recovery of stroke patients.

시험유역운영(이동유역) (Operation of Experimental Basin(Yi-dong Basin))

  • 박재홍;김진택;박지환
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2003년도 학술발표회논문집(2)
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    • pp.611-614
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    • 2003
  • Yi-dong experimental basin is operated for research on the rural basin characteristics and accumulation of a long term data by hydrological observation equipments. It is basin area 9,440ha, length 14.4km and slope 0.67%. Hydrological observation network is constructed of rainfall meter 4points, reservoir storage level 3points and river water level 2points.

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리듬청각자극을 동반한 동작관찰 신체훈련이 만성 뇌졸중 환자의 하지 근활성도와 보행능력에 미치는 영향 (The Effects of Action Observational Physical Training with Rhythmic Auditory Stimulation on Muscle Activity of the Lower Extremity and Gait Ability in Patients with Chronic Stroke)

  • 송수영;송요한;이현민
    • 대한물리의학회지
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    • 제13권2호
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    • pp.137-145
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    • 2018
  • PURPOSE: The purpose of this study was to investigate the effect of action observational physical training with rhythmic auditory stimulation on muscle activity and gait ability in patients with stroke. METHODS: Twenty-six chronic stroke patients participated in this study were assigned into three groups, experimental group 1 (10% faster tempo rhythmic auditory stimulation with action observation training) n=8, experimental group 2 (average tempo rhythmic auditory stimulation with action observation training) n=9, and control group (action observation training) n=9. In this experiment, the corresponding exercise were applied into the subjects of three group for 30 minute a day, 3 time a week during 4 weeks. All participants were measured to muscle activity of lower limb, 10 meter walking test, Figure of 8 walk test, Dynamic gait Index. The collected data were analyzed by using SPSS (version 18.0 for window) and verified that each data was a normal distribution based on Shapiro-Wilk test. Between-group and within-group comparison was analyzed by using One-way ANOVA test, Paired t-test respectively. In all statistical analyses, significance level, ${\alpha}$ was set by .05. RESULTS: The above results revealed that the all experimental group 1 and experimental group 2 and control group were all effective to improve the lower limb muscle activities, gait ability. However more positive effects shown action observational physical training with rhythmic auditory stimulation experimental group. CONCLUSION: This study suggest that action observation physical training with rhythmic auditory stimulation is effective intervention for improvement of muscle activity and walking ability in chronic stroke patients.

동작관찰훈련이 만성 뇌졸중 환자의 하지 근 활성도 및 동적 균형에 미치는 영향 (The Effects of Action Observation Training on Lower Limb Muscle Activity and Dynamic Balance in Chronic Stroke Patients)

  • 김재운;손영란;김용남
    • PNF and Movement
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    • 제17권2호
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    • pp.245-252
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    • 2019
  • Purpose: The purpose of this study was to determine the effects of action observation training on lower limb muscle activity and dynamic balance in chronic stroke patients. Methods: This study evaluated 20 chronic stroke patients who were divided randomly into a control and an experimental group comprising 10 patients each. Both the experimental group and the control group performed the general exercise therapy provided by the hospital, but the experimental group also performed action observation training. Lower limb muscle activity was measured with a surface electromyograph, and dynamic balance was measured with the Timed Up and Go test and the 10-meter walk test. The paired t-test was used to compare the groups before and after the experiment. Furthermore, the independent t-test was used to assess differences in the degree of change between the two groups before and after the experiment. Results: The within-group comparisons for both the experimental group and the control group showed significant differences in muscle activity and dynamic balance (p<0.05). In a comparison between the groups, the differences in the muscle activity and dynamic balance of the experimental group appeared significant compared with those of the control group (p<0.05). Conclusion: The study results indicate that action observation training is effective in improving the muscle activity and dynamic balance of chronic stroke patients.

초등과학 수업에서 다중지능 요소별 관찰전략을 활용한 관찰학습이 학생의 관찰능력, 성취도 및 과학적 태도에 미치는 효과 (An Effect of Multiple Intelligences-Specific Observation Strategy on Observation Skills, Achievement and Scientific Attitude in Elementary Science Class)

  • 이시은;최선영
    • 과학교육연구지
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    • 제37권1호
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    • pp.1-10
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    • 2013
  • 본 연구는 초등학교 4학년 2학기 1단원 '식물의 세계'에서 학습자 중심의 다양한 관찰학습을 적용하기 위해 다중지능 요소별 관찰 전략을 개발하여 과학수업에 관찰 학습 프로그램을 적용하고 초등학생들의 관찰능력, 학업성취도, 과학적 태도에 미치는 영향을 알아보기 위한 것이다. 이를 위해 단원 차시별 관찰 대상 및 주제를 선정하고 다중지능 활용 교수 학습 방법 중 적합한 방법을 추출하여 다중지능 요소별 관찰전략을 개발하였다. 개발한 관찰전략을 활용하는 관찰학습 프로그램 단계를 구상하였으며 관찰능력, 학업성취도, 과학적 태도에 관한 사전검사를 실시하였다. 관찰학습 프로그램 단계마다 개발한 다중지능 요소별 관찰전략 중 적절한 전략을 선택하여 교수학습을 계획하고 수업에 투입하였다. 수업 실시 후 관찰능력, 학업성취도, 과학적 태도에 관한 사후 검사를 통해 효과를 분석하였다. 그 결과 첫째, 다중지능 요소별 관찰전략을 적용한 관찰 능력을 검사에서 학생들의 관찰 능력 수준을 상위단계로 발전시키는데 긍정적인 영향을 끼친 것으로 보인다. 관찰 능력 검사의 하위 영역인 진술문 구별하기, 정량관찰, 정성관찰 영역에서 실험반이 비교반보다 높은 점수를 나타냈다. 둘째, 관찰 전략의 적용은 학생들의 과학적 개념 이해에 효과적이었으며 초등 과학 생물 영역 성취도 검사에서 실험반이 비교반보다 점수가 높은 점수를 받도록 하였다. 셋째, 과학적 태도 검사에서는 과학적 태도의 하위 요소인 개방성, 자진성, 창의성에서 유의미한 차이가 있었다. 다중지능 요소별 관찰전략은 과학적 태도 변화에도 긍정적인 효과를 끼쳤음을 알 수 있다. 이 연구 결과를 종합하면 다중지능 요소별 관찰전략을 적용한 결과 관찰능력, 학업성취도, 과학적 태도 모든 영역에서 효과가 있었다. 따라서 다중지능 요소별 관찰 전략은 초등학교의 과학 수업 현장에서 교수 학습 방법의 하나로 제시 될 수 있으며 의미있는 과학수업이 될 것이다.

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영상 관측과 근전도 신호 계측을 이용한 주시 방향 기반 휴먼-컴퓨터 인터페이스 (View direction-based Human-Computer Interface using Image Observation and EMG Signal)

  • 황성재;조승관;정상현;문인혁
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2002년도 하계종합학술대회 논문집(5)
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    • pp.185-188
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    • 2002
  • This paper proposes a view direction-based human computer interface(HCI) system using image observation and EMG signal. CCD camera is available for observation relatively small angular view direction. Large angle is recognized by measuring EMG signal of the sternocleidomastoideus, because it is difficult to detect the large angular view direction by CCD observation. From experimental results, we show the proposed HCI system is useful for the disabled.

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Implementation of an Automatic Observation System for Cloud Observations

  • Kwon, Jung Jang
    • 한국컴퓨터정보학회논문지
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    • 제21권2호
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    • pp.79-88
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    • 2016
  • In this paper, we propose an efficient automatic observation system for cloud amount and height observations. Observation system consists of clouds observations machinery, operational programs, cloud amount extraction program, cloud height extraction program, expert support programs. The experiment was conducted at the Daegwallyeong and Busan, through experimental observation confirmed the usefulness of the proposed system.