抄録
The purposes of this research are to develop mathematics lesson which makes a point of connections with society for the high school student, and to foster competence to deal with mathematically the phenomena and the problems in the society. As one of the work to achieve the purposes of this research, this paper makes an analysis of "the degree of fictional nature" that is observed in mathematical word problems that were made by students. In this paper, the author described what is "the degree of fictional nature" with relation to mathematical modeling process, and how it is related to the purposes of this research. The investigation was executed with a concrete teaching material, and mathematical word problems that students made were analyzed in terms of the degree of fictional nature.
