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Diagnosis of Students' Cognition and Understanding about Heavy Metals According to the Different Major between Liberal Art and Science in High School

문.이과 계열에 따른 중금속에 대한 고등 학생들의 인식 및 이해도 분석

  • Moon, Kyung-Ah (Department of Chemistry Education, Seoul National University) ;
  • Chae, Hee-K. (Department of Chemistry Education, Seoul National University)
  • 문경아 (서울대학교 화학교육과) ;
  • 채희권 (서울대학교 화학교육과)
  • Published : 2009.12.20

Abstract

In this study, high school students' perceptions of chemically ill-defined ‘heavy metals’ were examined through questionnaires. Nineteen classes of 11th graders (N = 611) were divided into two groups according to completion of 'Chemistry I', which were 10 science-classes and 9 liberal art-classes and compared each other. Three terms of students' cognition and definition, impact on the formation of their cognition, and their chemical knowledge of 'heavy metals' were analyzed by SPSS. The findings revealed that most of students recognized ‘the heavy metal’ as the metal which causes to be accumulated on any living thing and is hazardous in human body regardless of different major between liberal art and science. Mass media and school instruction were found to be the greatest impact on the formation of these cognitions. Especially, school instruction had more effects on students majoring in science than students majoring in liberal art, which bring the result that students in science-classes have more misconception about the definition of 'heavy metals' with human toxicant regardless of metal species and its content in human body and physical density due to the ill-defined terminology of the textbook than students in liberal art-classes do. It is interesting that students in science-classes understood hazard and chemical structure of 'heavy metals' better, while students in liberal art-classes answered the question better about hazardous properties of heavy metals.

Keywords

Ill-defined heavy metal;Completion of chemistry I;Students' cognition

References

  1. Develaki, M. Sci. & Educ. 2008, 17, 873-888 https://doi.org/10.1007/s11191-007-9077-7
  2. a) Hodson, D. Int. J. Sci. Edu. 2003, 25(6), 645-670. (Please refer to the other references for details:no.24) https://doi.org/10.1080/09500690305021
  3. a) Arvai, J. L.; Cambell, V. E. A.; Baird, A. & Rivers, L. J. Environm. Edu. 2004, 36(1), 33-44. (Please refer to the other references for details:no.25) https://doi.org/10.3200/JOEE.36.1.33-44
  4. Nam, S. J. Environmental Education; Daehaksa: Seoul, Korea, 1995
  5. Gigliotti, L. M. J. Environm. Edu. 1990, 22(1), 9-12 https://doi.org/10.1080/00958964.1990.9943040
  6. Driver, R.; Guesne, E.; Tiberghien, A. In Some features of children's idea and their implications for teaching; R. Driver, E., Guesne, & A. Tiberghien, Eds.; Open University Press: Milton Keynes, U. K. 1985
  7. a) Choi, S. J.; Kim, J. H.; Lee, D. Y.; Jang, H. J. A study of Korean school environmental education curricula 1997. (Please refer to the other references for details:no.26)
  8. Choi, S. J.; Park, S. M.; Shim, H. M.; Lee, Y. S.; Park, J. S. A study of teaching-learning, curriculum and evaluation of environmental education; Korea Institute for Curriculum and Evaluation: Seoul, Korea, 2001
  9. Nam, M. H.; Nam, Y. S. Environm. Edu. 2007, 20(2), 16-24
  10. Ministry of Education, Science and Technology Curriculum guideline book for high school-science; Daehan Printing & Publishing: Seoul, Korea, 1997
  11. a) Johnstone, A. H. J. Chem. Edu. 1983, 60(11), 968-671. (Please refer to the other references for details:no.27~no.28) https://doi.org/10.1021/ed060p968
  12. a) Mahaffy. P. Chem. Edu. Res. Prac. 2004, 5(3), 229-245. (Please refer to the other references for details:no.29) https://doi.org/10.1039/b4rp90026j
  13. a) Koo, J. H. A study of Korean and oversee's research results of environmental pollution by heavy metals and their classification by themes; Korean Medical Association: Seoul, Korea, 2006. (Please refer to the other references for details:no.30)
  14. Kim, B. R. J. Kor. Home Econom. Edu. Assoc. 2007, 19(3), 119-131
  15. Moon, K. A.; Chae, H. K. J. Korean Chem. Soc. 2007, 51(6), 560-568 https://doi.org/10.5012/jkcs.2007.51.6.560
  16. Ochiai, E. I. J. Chem. Edu. 1995, 72(6), 479-484 https://doi.org/10.1021/ed072p479
  17. Duffus, J. H. Pure Appl. Chem. 2002, 74, 793-807 https://doi.org/10.1351/pac200274050793
  18. Uhm, Y, Y.; Kim, Y. J.; Kim, J. S.; Yoon, M. Y. J. Korean Chem. Soc. 2000, 44(2), 138-144
  19. a) Lee. J. Y.; Kim, I. H.; Lee, S. K. Environm, Edu. 1996, 9, 30-38. (Please refer to the other references for details:no.31)
  20. Eisenkraft, A. Active chemistry; Its' About Time: New York, U. S. A. 2007
  21. Suh, J. S. Chemistry II; Kum Sung Publishing: Seoul, Korea, 2006
  22. a) Cox, P. A. Instant notes inorganic chemistry. 2nd Ed.; BIOS Scientific Publishers: London, U. K. 2004. (Please refer to the other references for details:no.32)
  23. Detailed recent progress on the biological mechanism of toxic lead by DNA methylation. Pilsner, J. R.; Hu, H.; Ettinger, A.; Sanchez, B. N.; Wright, R. O.; Cantonwine, D.; Lazarus, A.; Lamadrid-Figueroa, H.; Mercado-Garcis, A.; Tellez-Rojo, M.; Hernandez-Avila, M. Environ. Health Perspec. http://dx.doi.org,online 25 March, 2009
  24. b) Pedretti, E. Teaching science, technology, society and environment education. In Zeidler, D. L. Ed., The role of moral reasoning on socioscientific issues and discourse in science education; Kluwer Academic Publishers: Dordrecht, Netherlands, 2003. (The reference is seperated at no.2)
  25. b) NAAEE (North American Association for Environmental Education) Excellence in environmental education: Guidelines for learning (pre K-12), 2004. (The reference is seperated at no.3)
  26. b) Munson, B. H. J. Environm. Edu. 1994, 25(4), 30-34. (The reference is seperated at no.26)
  27. b) Johnstone, A. H. J. Chem. Edu. 1993, 70(9), 701-705. https://doi.org/10.1021/ed070p701
  28. c) Gilbert, J. K.; Treagust, D. Multiple representations in chemical education; Springer: Berlin, Deutschland, 2009. https://doi.org/10.1007/978-1-4020-8872-8
  29. b) Mahaffy, P. J. Chem. Edu. 2006, 83(1), 49-55. (The reference is seperated at no.29) https://doi.org/10.1021/ed083p49
  30. b) Choo, J. M. Environmental policy for low-income people in urban areas II; Korea Environment Institute: Seoul, Korea, 2008. (The reference is seperated at no.13)
  31. b) Alaimo, S, J.; Doran, R, L. J. Environ. Edu. 1980, 12(1), 17-21. https://doi.org/10.1080/00958964.1980.9941913
  32. b) Vallee B. L.; Ulmer D. D. Ann. Rev. Biochem 1972, 41, 91-128. https://doi.org/10.1146/annurev.bi.41.070172.000515