小学校における数理科学的意思決定に関する教材の開発と学習者の評価

抄録

We make decisions based on numerical values (quantitative data) in many aspects of our daily lives. Qualitative data can also be transformed into numerical values to do mathematical scientific decision making. This paper has two purposes. First, we will develop teaching materials for mathematical scientific decision making based on multiple data using data transformation. Secondly, we will evaluate learners regarding changes in their attitudes toward using mathematics in their daily lives and society, and how they effect transfer to other situations. First, we extracted elements of mathematical scientific decision making that require data transformation, and developed teaching materials for “Deciding the destination of a school trip to Nikko” for sixth grade elementary school students. In the practice, mathematical scientific decision making was conducted through indexing, weighting, and quantification of values. Next, we evaluated the change in attitudes toward applying mathematics to daily life and society, and the use of the learning. The students’ attitudes improved as they engaged in the study. In the transfer study, most of the children used the externalization and indexing of values. On the other hand, less than half of the children in the transfer study did mathematical scientific decision making. It can be considered that the complexity of mathematical operations is a factor for the target children. It is suggested that systematic learning by dividing activities may be necessary in the future.