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| Type |
Poster Presentation |
| Area |
Chemistry Education |
| Room No. |
Exhibition Hall 2+3 |
| Time |
10월 20일 (금요일) 13:00~14:30 |
| Code |
EDU.P-501 |
| Subject |
Suggestion of Explaining Method as Process Viewpoint in Conjunction with Buoyancy and Density |
| Authors |
Sung-ki Kim, Seounghey Paik1,*
Naju high school, Korea
1Department of Chemical Education, Korea National University of Education, Korea
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| Abstract |
The phenomenon of floating and sinking is very common in our surroundings, so is dealt from childhood. But not only students but teachers are at an alternative conception level. In chemistry class, this phenomenon is explained using density. The explanation using density has the advantage that the determination of the outcome of this phenomenon is simple, but there is a lack of understanding as to why this density explains this phenomenon. The phenomenon of float or sinking cannot be explained by the material itself, and the fluid and the object must be considered at the same time. In addition, this phenomenon has a series of processes that float or sink. To include these two things, the approach of explaining this phenomenon should be process viewpoint. We used the lever as a visible tool for this suggestion. This explanatory approach helps to recognize the cause of this phenomenon as gravity, and has an educational value that makes it possible to understand that this phenomenon is caused by the relationship between materials, not the properties of the material. This can provide an understanding of why explanation using the density can explain this phenomenon. In addition, because we use the basic science concept of volume and mass, students can learn this phenomenon’s principle scientifically before learning the density as upper science concept. |
| E-mail |
mcarey2000@nate.com |
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120th General Meeting of the KCS