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|Other Titles:||Case Studies on Investigating the 9th Graders’Conceptions of Particles :Taking Diffusion as an Example|
|Authors:||謝秉桓 林啟華 曾茂仁 鐘建坪 邱美虹|
Ping-Huang Hsieh, Chi-Hua Lin, Mao-Jen Tseng,Jing-Ping Jong, Mei-Hung Chiu
Science Education Center,National Normal University
This was a case study to investigate the six 9th grade students’ conceptions of diffusion.Analyses of characteristics of students’ understanding of the particle concepts were generated from their drawings and interviews. The results showed that some case students had submicroscopic concept of diffusion and they could use the concept to explain the phenomenon of diffusion. However, all the case students did not have the complete understanding of diffusion. It is our recommendation that not only do teachers have to emphasize on the characteristics of particles during instruction, but also have to help students build internal appropriate representations (e.g., mental models) of particles at the submicroscopic level. We also argue that teachers can monitor students’ conceptual status via alternative assessment methods, such as interview and drawing. The relationships of macroand microscopic views of particles should also be introduced earlier in the textbooks.
|Appears in Collections:||科學教育月刊|
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