中学校理科におけるデータ分析を重視した仮説検証型学習―被子植物と送粉昆虫を題材とした教材開発―

抄録

Fostering students’ ability to analyze the results of observations or experiments is important in science class. In this study, we propose an activity for analyzing results by using a prepared data set in a lower secondary school biology class. We chose the following subject: “from interaction with bumblebees (Bombus sp.), explain why there is polymorphism in the flowers of Clematis stans.” We prepared a photograph of C. stans, specimens of bumblebees, a data set and worksheets, and conducted the class using these materials. Students formed hypotheses about the relationship between the structures of the C. stans flowers and the snouts of bumblebees, and selected the data necessary for examination of their hypotheses from the data set. Subsequently, they analyzed the data graphically and interpreted the result. Finally, they came to a conclusion regarding the reason why there is polymorphism in the flower of C. stans. As a result of using this teaching material, students felt that they were able to understand the relationship between C. stans and bumblebees based on their own ideas. In addition, they felt that it was an important activity for understanding how to form a hypothesis, draw a graph, and interpret results.