earticle

영어

In this study, we investigated how to infer the perception of quantity and the relationship between them. In addition, existing tasks using technical instrument were investigated. The purpose of this study is to propose a task using an technical instrument that can be used to identify the limitations of existing tasks and to understand the perception and inference method of quantity. The results of this study are as follows. First, it is expected that the use of technical instrument will provide dynamic representations that were not in the existing tasks and more efficiently grasp students' reasoning methods. Second, teachers' competence in engineering tools should be enhanced for efficient use of tasks.