C-Fern을 이용한 유전 실험 수업이 중학생 유전 개념 체계의 변화에 미치는 효과
Effects of Experimental Genetics Program using C-Fern on Students' Change of Concepts in Genetics
0
조회
0
다운로드
5
인용
0
참고문헌
키워드
초록
This study was intended to develop experimental genetics program using Ceratopteris richardii (C-Fern) and to test its effectiveness. Because all stages of sexual reproduction of the C-Fern take place within two weeks, students can easily observe the basic Mendelian principles with plant development and alteration of generations. By combining the life cycle of C-Fern with the concepts of genetics, the experimental genetics program was developed. Two groups of ninth grader students were chosen to participate in experimental group and control group. Achievement test and word association test were given before and after instruction using developed experimental genetics program. After post-test, five students selected from both groups were interviewed. Results showed that the difference in the level of learning between two groups was statistically significant (p<.05). According to the word association test, the relatedness coefficient of the experimental group was proved to be greater than that of the control group. After instruction, it was found that students could make many links in their conceptual network. Moreover, difficulties of understanding the relatedness in some concept groups were taken care of. These results could indicate that the instruction utilizing the experimental approach with C-Fern seems to be effective in better understanding concepts in genetics.
Abstract
This study was intended to develop experimental genetics program using Ceratopteris richardii (C-Fern) and to test its effectiveness. Because all stages of sexual reproduction of the C-Fern take place within two weeks, students can easily observe the basic Mendelian principles with plant development and alteration of generations. By combining the life cycle of C-Fern with the concepts of genetics, the experimental genetics program was developed. Two groups of ninth grader students were chosen to participate in experimental group and control group. Achievement test and word association test were given before and after instruction using developed experimental genetics program. After post-test, five students selected from both groups were interviewed. Results showed that the difference in the level of learning between two groups was statistically significant (p<.05). According to the word association test, the relatedness coefficient of the experimental group was proved to be greater than that of the control group. After instruction, it was found that students could make many links in their conceptual network. Moreover, difficulties of understanding the relatedness in some concept groups were taken care of. These results could indicate that the instruction utilizing the experimental approach with C-Fern seems to be effective in better understanding concepts in genetics.
참고문헌 (18)
- 2009 개정 교육과정-과학과, "교육과학기술부", 교육과학기술부, ~ (2009)
- 김희백, "유전 개념의 이해를 위한 염색체 모형 이용 수업의 효과", 한국생물교육학회지, 30(3), pp.282~288 (2002), 한국생물교육학회
- 동효관, "과학사를 이용한 과학영재 생물교수학습 모듈 개발", 한국생물교육학회지, 30(4), pp.363~373 (2002), 한국생물교육학회
- 이미숙, "멘델유전 학습을 위한 웹 기반 시뮬레이션형 코스웨어 개발", 한국생물교육학회지, 29(4), pp.289~299 (2001)
- 이은정, "C-Fern(Ceratopteris richardii)을 이용한 예비 교사의 생식 및 유전 교수·학습 모듈의 개발과적용 효과", 석사, pp.2007
- Bahar, M., "Investigation of students' cognitive structure in elementary genetics through word association tests", Journal of Biological Education, 33(3), pp.134~141 (1999)
- Banet, E., "Teaching genetics at secondary school: A strategy for teaching about location of inheritance information", Science Education, 84(3), pp.313~351 (2000)
- Finley, F. N., "Teachers' perceptions of important and difficult science content", Science Education, 66(4), pp.531~538 (1982)
- Garskoff, B. E., "Measurement of verbal relatedness: An idiographic approach", Psychological Review, 70(3), pp.277~288 (1963)
- Hackling, M. W., "Research data necessary for meaningful review of grade ten high school genetics curricula", Journal of Research in Science Teaching, 21(2), pp.197~209 (1984)
- Hickok, L. G., "C-Fern Manual. Carolina Biological Supply Company" (2000), Burlington
- Hickok, L. G., "The biology of the fern Ceratopteris and its use as a model system", International Journal of Plant Science, 156(3), pp.332~345 (1995)
- Hickok, L. G., "Ceratopteris richardii applications for experimental plant biology", American Journal of Botany, 74, pp.1304~1316 (1987)
- Lewis, J., "Chromosomes: the missing link-Young people's understanding of mitosis, meiosis, and fertilization", Journal of Biological Education, 34(4), pp.189~199 (2000)
- Lewis, J., "Young people's understanding of the nature of genetic information in the cells of an organism", Journal of Biological Education, 35(1), pp.29~36 (2000)
- Radford, A., "Teaching genetics in schools", Journal of Biological Education, 16(3), pp.177~180 (1982)
- Stewart,J.H., "Difficulties experienced by high school students when learning basic Mendelian genetics", American Biology Teacher, 44(2), pp.80~84 (1982)
- Venville, G. J., "Exploring conceptual change in genetics using a multidimensional interpretive framework", Journal of Research in Science Teaching, 35(9), pp.1031~1055 (1998)