123rd General Meeting of the KCS

Type Poster Presentation
Area Chemistry Education
Room No. Exhibition Hall 2
Time 4월 18일 (목요일) 11:00~12:30
Code EDU.P-496
Subject The Characteristics of Middle School Students’ Graph Construction According to Daily-life and Scientific Contexts: Focused on the Views on the Nature of Scientific Measurement
Authors Jaewon Lee, GoEun Ryu1, Taehee Noh*
Department of Chemistry Education, Seoul National University, Korea
1Seoul National University, Korea
Abstract In this study, we investigated the characteristics of graph construction of middle school students on daily-life and scientific contexts by the views on the nature of scientific measurement. A test consisting of three similar data sets regarding daily-life and scientific contexts was developed, and administered to 151 ninth graders. They were expected to construct proportional, inverse-proportional, and broken line graphs for each data set. Graphs constructed were analyzed in the aspects of constructing general form, interpolating/extrapolating, selecting axes variables, scaling axes, and plotting points. Analyses of the results revealed that the students with set paradigm tended to construct curved line, while those with point paradigm constructed broken line in inverse-proportional graph questions. In this case, the students were likely to construct curved line in daily-life context and broken line in scientific context. In interpolating/extrapolating, most students with set paradigm performed both interpolation and extrapolation better than those with point paradigm in scientific context. Most students with set paradigm performed both interpolation and extrapolation regardless of contexts, while those with point paradigm performed better in daily-life context. In selecting axes variables, scaling axes, and plotting points, there were no significant differences between set and point paradigms or daily-life and scientific contexts. On the bases of the results, educational implications for improving graph construction skills of middle school students are discussed.
E-mail jaewooner@snu.ac.kr