Browse > Article

The Analysis of Textbook Contents and Science Teachers' Conceptions on Freezing Point Depression Phenomenon  

Ha, Seong-Ja (Korea National University of Education)
Kim, Bum-Gi (Korea National University of Education)
Paik, Seoung-Hey (Korea National University of Education)
Publication Information
Journal of The Korean Association For Science Education / v.25, no.2, 2005 , pp. 88-97 More about this Journal
Abstract
The purpose of this study was to investigate explanations of science textbooks and science teachers' conceptions related to freezing point depression phenomenon. Seven kinds of middle school science textbooks and five kinds of high school chemistryII textbooks were analyzed for the purpose. The teachers' conceptions were searched by a questionnaire developed in this study. The subjects were 146 science teachers. The explanation types of science textbooks were divided into two; 'Description of the phenomenon' and 'Vapor pressure lowering'. The explanations in most of middle school science textbooks and high school chemistryII textbooks belong to 'Description of the phenomenon' and there was no explanation of the reason. The graphs related to depression of freezing point were diverse, too. Most of the science teachers also did not have scientific conception. The percentage of the teachers who thought that the cause of freezing point depression was blocking of solute in solution was high. But the teacher could not find meaningful relation the 'Blocking of solute' explanation represented for elevation of boiling point with depression of freezing point. It is insisted that entropy concept is need to explain depression of freezing point phenomenon in this study.
Keywords
middle school; high school; science textbook; science teacher; misconception; freezing point depression; explanation type;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Nakhleh, M. B. & Samarapungavan, A.(1999). Elementary School Children's Beliefs about Matter. Journal of Research in Science Teaching, 36(7), 777-805   DOI   ScienceOn
2 Strong, L. E.(1972). Entropy Early, and Often. Australian Science Teachers Journal, 18(1), 55-58
3 Tomanek, D.(1994). Cases of Content: Studying Content as a Part of a Curriculum Process. Science Education, 78(1), 73-82   DOI   ScienceOn
4 조정일, 이현욱(1994). 확산과 삼투 분자 운동 모형을 활용한 수업의 개념변화에의 효과. 한국과학교육학회지, 14(3), 293-303
5 Craig, N. C.(1988). Entropy of four familiar processes. Journal of Chemical Education, 65(9), 760-764
6 Lambert, F. L.(2002). Entropy is Simple, Qualitatively. Journal of Chemical Education, 79(10), 1241-1246   ScienceOn
7 Franzen, H. F.(1988). The freezing point depression law in physical chemistry. Journal of Chemical Education, 65(12), 1077-1078
8 Friedman, W. J.(2001). The development of an intuitive understanding of entropy. Child Development, 72(2), 460-473   DOI   ScienceOn
9 노태희, 임희준, 우규환(1995). 화학양론과 기체 상태에 대한 중.고등학생의 개념 이해도 비교. 한국과학교육학회지, 15(4), 438-451   과학기술학회마을
10 김주현, 이동준, 김선경, 강성주, 백성혜(2000). 입자론의 관점에서 본 확산과 용해 개념에 관련된 과학 교과서 및 인터넷 자료 분석과 컴퓨터 수업 보조 자료의 개발. 대한화학회지, 44(6) 611-624