Bulletin of theory and practice in secondary education Issue 67
2021-03-31 発行


Ingenuity of Questions in Figure Instruction
In this study, we designed and practiced three lessons on figure instruction for second year junior high school students. An abundance of experience with graphic expressions is required to judge the truth of the opposite of a proposition. There were students who had difficulty converting symbolic expressions to graphic ones. The study found that the consideration of a figure can be deepened by considering the trajectory without a coordinate system.