Hiroshima Daigaku Fuzoku Mihara Gakkoen kenkyu kiyo Volume 7
2017-03-28 発行

事象を科学的な見方・考え方で説明する授業開発 : 第5学年「電流がうみ出す力」の実践を通して

Development of a Lesson Explaining the Phenomena from Scientific Perspectives and Ideas: Class Practice of Unit "Power Produced by Electric Current" in Fifth Grade Elementary School
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abstract
The purpose of this study is to enable students to understand that electric current produces a magnetic field by knowing the occurrence of magnetic field in a whole wire where electric current flows, and explain the relationship between a number of turns in the coil and electromagnetic force from scientific perspective and ideas. A lesson was developed, conducted in the unit "Power Produced by Electric Current" in the fifth grade of elementary school, and then investigated the learning effect through a questionnaire. Alternatively, students managed to understand a magnetic field was generated in a whole wire where electric current flows and explain the relationship between a number of turns in the coil and electromagnetic force on the ground of a magnetic field produced in a wire. This result suggests that some students considered a greater number of turns in the coil made electric current stronger, and let electric current flow the iron core. Altogether, students were unable to understand that electric current produces a magnetic field.