원예활동을 이용한 영어수업이 초등학생의 영어학습 흥미와 자신감에 미치는 영향

윤은선 ( Yun En Sun ),박천호 ( Pak Chun Ho ),김종윤 ( Kim Jong Yoon ) 한국화예디자인학회 2017 한국화예디자인학 연구 Vol.36 No.-

본 연구는 원예활동을 이용한 영어수업이 초등학생의 영어학습에 대한 흥미와 자신감 및 학업 성취도에 미치는 영향을 알아보기 위하여 G 시 D초등학교의 6학년 2개 학급을 대상으로 2016년 봄 학기 동안 실험을 수행하였다. 2개 학급 중 대조반은 전통적인 영어 교과서만을 가지고 수업을 진행하였고, 실험반은 영어 교과 내용에 원예활동을 접목하여 영어 수업을 진행하였다. 학생들에게 영어 수업 사전, 사후 영어 학습에 대한 흥미, 자신감에 대하여 설문을 하였으며, 수업 후 시험 점수를 통하여 학업 성취도를 조사하였다. 또한, 학습에 대한 흥미와 자신감 및 학업 성취도에 대한 지속성을 알아보기 위하여 실험 종료 30일 후 영어 학습에 대한 흥미와 자신감 및 학업 성취도에 대한 지속성을 알아보기 위하여 설문 조사하였다. 영어 학습에 대한 학생들의 흥미와 자신감을 조사한 사전검사에서는 대조반과 실험반에 유의한 차이가 없는 것(p>0.7)으로 나타나 두 학급 학생들의 동질성을 확인 후 시행하였다. 사후검사에서 실험반 학생들이 대조반 학생들에 비해 영어 학습 흥미가 유의하게 높은 결과(p=0.005)를 보였으며, 영어 학습에 대한 자신감에 대해서는 실험반 학생들이 대조반 학생들에 비해 높은 경향(p=0.113)을 보였으나 유의한 차이는 없었다. 각 집단에 대한 사전사후 대응 표본 t 검정 결과를 살펴보면 대조반 학생들의 영어 학습 흥미수치는 차이가 없었으나, 실험반 학생들은 수업 진행 후 학습 흥미가 유의하게(p=0.001) 증가한 것으로 나타났고, 영어 학습 자신감에서는 대조반(p=0.004)과 실험반(p<0.001) 학생들 모두 증가한 것으로 나타났다. 실험 종료30일 후 학습 흥미와 자신감에 대한 지속성 검사에서 실험반과 대조반 학생들의 자신감 차이는 나타나지 않았으나, 학습 흥미에서는 실험반 학생들이 지속적으로 유의하게(p=0.009)높은 학습 흥미를 지니는 것으로 나타났다. 학업 성취도의 결과를 살펴보면 각 단원에 대한 평가를 한 결과 대조반과 실험반 학생들 간의 유의한 차이는 나타나지 않았지만, 학습 흥미와 자신감의 상관관계를 살펴보면 흥미와 자신감은 정의 상관관계(r=0.337, p=0.039)을 보였으며, 흥미와 성적 간에 유의한 상관관계를 보이지는 않았지만 자신감과 성적 간에는 높은 정의 상관관계(r=0.586, p<0.001)를 보였다. 본 연구의 결과에 따르면 원예활동을 이용한 영어수업은 아동의 학습에 대한 흥미와 자신감을 높여주었으며, 학습에 대한 자신감은 학업 성취도에도 영향을 미쳤음을 알 수 있었다. 따라서 본 연구를 바탕으로 효과적인 원예활동을 이용한 영어교육 프로그램이 개발되어, 교육현장에서 효율적으로 활용될 수 있도록 지속적인 후속 연구와 노력이 필요할 것으로 판단한다. A horticultural activity is a proper theme for children, since it can develop five senses of the children with a hands-on experience. Current study was conducted to investigate whether the horticultural activity could improve the English learning interest and confidence by using related English expressions in English class through the horticultural activity. Student subjects were from two classes (19 students per class) of the 6th grade in an elementary school located in Goyang city, Gyeonggi-do, Korea. Students in the control class took conventional textbook classes and students in the experimental class took English classes through horticultural activities once a week for 12 times. Students in the English class with horticultural activities had higher scores both on interest and confidence than the students in the conventional English class. In case of academic achievement, there was no significant difference in average scores between the two groups. As results of comparing the two groups 30 days after the end of the experiment, the students in the English class with horticultural activities had significantly higher English learning interest than the students in control class, which suggests maintaining the more learning interest after the class with the horticultural activities. There were positive correlation between English learning interest and confidence(r=0.037, p=0.039), and also between the English learning confidence and academic achievement (r=0.586, p<0.001). Depending on the results, this study could suppose that English learning interest and confidence could be improved in learning processes through the horticultural activities, further possibly improving the academic achievement. Therefore, in order to provide the more effective and significant educational environment to elementary students who have classes with difficult foreign languages, this study suggests that the horticultural activities could be developed for English education of elementary school and they would be effective in educational fields.

LC/MS를 이용한 축산물 중 잔류 마크로라이드계 항생물질 분석법 연구

황래홍 ( Lae Hwong Hwang ),윤은선 ( En Sun Yun ),김연주 ( Yoen Joo Kim ),김동언 ( Dong Eon Kim ),양윤모 ( Yoon Mo Yang ),이정학 ( Jung Hark Lee ),이병동 ( Byung Dong Lee ) 한국가축위생학회 2002 韓國家畜衛生學會誌 Vol.25 No.3

This study was carried out to confirm analytical method of residual macrolides in livestock products by LC/MS. 1. Macrolides were analyzed by LC/MS on XTerra C18 column with 0.1%TFA(trifluoroacetic acid)-methanol in a gradient mode as mobile phase, and that were identified by positive chemical ionization with selective ion monitoring at 50~1000 mass range. 2. Residual macrolides were extracted from tissue with acetonitrile, and the extract is purified with a Sep-pak C18 cartridge, and elute macrolides with 0.1M methanolic ammonium acetate. 3. The procedure confirms the presence of each macrolide at 50㎍/kg in spiked sample.

HPLC를 이용한 축산물중 잔류페니실린 및 클로람페니콜의 동시분석법 연구

황래홍 ( Lae Hwong Hwang ),윤은선 ( En Sun Yun ),김현정 ( Hyun Jung Kim ),김연주 ( Yoen Joo Kim ),정형기 ( Hyeoung Ki Jung ),한인규 ( In Kyou Han ),이병동 ( Byung Dong Lee ) 한국가축위생학회 2000 韓國家畜衛生學會誌 Vol.23 No.1

This study was carried out to simultaneous determination of penicillin G and chloramphenicol in livestock products by HPLC. The results abstained were as follows 1. Penicillin G and chloramphenicol were analyzed by HPLC on symmetry C18 column with acetonitrile-0.1 M phosphate buffer containing 0.0157 M thiosulfate (25: 75) as mobile phase at UV 325nm and 280nm, respectively. 2. Samples were applied to a Sep-pak Cig cartridge, from which eluted penicillin derivatized with 2 M 1,2,4-triazole containing 0.001 M mercuric chloride. 3. The average recovery rates of penicillin G and chloramphenicol were 81.8% and 80.3%, respectively, and the detection limits were 5 ppb (5tg/kg: 7.91U/kg) for penicillin G and chloramphenicol in porcine and bovine muscle.

축산식품중의 중금속 함량에 관한 조사연구

정지헌 ( Ji Hun Jung ),황래홍 ( Lae Hwong Hwang ),윤은선 ( En Sun Yun ),김현정 ( Hyun Jung Kim ),한인규 ( In Kyou Han ) 한국가축위생학회 1999 韓國家畜衛生學會誌 Vol.22 No.1

This study was performed to investigate the contents of the heavy metals such as cadmium(Cd), copper(Cu), iron(Fe), lead(Pb) and zinc(Zn) in meat and meat products. For this experiment, each 20 samples of beef and pork were collected at slaughterhouse in Seoul areas and 45 samples of meat products(ham, sausage, processed meat and seasoned meat) were purchased from commercial food markets. The contents of the heavy metals was determined by atomic absorption spectrophotometry from Jan. to Nov. in 1998. The results obtained were summarized as follows 1. In Korean native beef, mean values of the heavy metals(mg/kg) were Pb: 0.14±0.10, Cd: 0.07±0.02, Cu: 1.73±0.95, Zn: 42.82±8.17 and Fe: 67.43±24.18, respectively. 2. In imported beef, mean values of the heavy metals(mg/kg) were Pb: 0.03±0.08, Cd: 0.06±0.02, Cu: 1.41±0.62, Zn: 42.93± 4.95 and Fe: 40.06± 12.77, respectively. 3. In pork, mean values of the heavy metals(mg/kg) were Pb: not detected, Cd: 0.09±0.02, Cu: 1.08±0.23, Zn: 19.49±6.02 and Fe: 30.21±10.51, respectively. 4. In ham, mean values of the heavy metals(mg/kg) were Pb: trace, Cd: trace, Cu:1.19± 0.46, Zn: 13.58±4.99 and Fe: 31.43±11.74, respectively. 5. In sausage, mean values of the heavy metals(mg/kg) were Pb: 0.15±0.34, Cd: 0.08±0.05, Cu: 1.15±0.46, Zn: 13.70±7.13 and Fe: 27.28±15.05, respectively. 6. In processed meat, mean values of the heavy metals(mg/kg) were Pb: 0.08±0.13, Cd: 0.09±0.04, Cu: 1.28±0.60, Zn: 14.72±7.09 and Fe: 24.04±10.33, respectively. 7. In seasoned meat, mean values of the heavy metals(mg/kg) were Pb:1.05±2.21, Cd: 0.13 ±0.03, Cu: 1.06± 0.16, Zn: 17.53± 8.72 and Fe: 26.76± 9.02, respectively.

테트라싸이클린계 잔류항생물질 분석을 위한 전처리방법 비교

김동언 ( Dong Eon Kim ),황래홍 ( Lae Hwong Hwang ),윤은선 ( En Sun Yun ),함희진 ( Hee Jin Ham ),양윤모 ( Yoon Mo Yang ),김창기 ( Chang Gi Kim ),기노준 ( No Jun Ki ),이정학 ( Jung Hark Lee ) 한국가축위생학회 2003 韓國家畜衛生學會誌 Vol.26 No.3

Solid phase extraction(SPE) and matrix solid phase dispersion(MSPD) have been studied as preparation procedures for tetracyclines analysis by high-performance liquid chromatography (HPLC) in meat. The recovery range was 74~98% for SPE, and 72~93% for MSPD at spiked levels of l00ng/g for oxytetracycline(OTC), tetracycine(TC), chlortetracycline(CTC), and doxycycline(DC). The detection limits were 15~78ng/g for SPE and 25~84ng/g for MSPD, respectively. Analytical method was HPLC with UV detector. The purpose of this study was developing a practical, accurate and precise method for rapid extraction and quantitation of tetracycline residues in meat.