本研究探討主題為教室裡個人的收納空間問題，與學生密切相關，需求性高。於是，問題情境設計為如何將空間做最大化的利用，並運用了Modeling的研究設計，旨在分析國小三年級學生的建模歷程，學生是如何識別情境脈絡，擷取重要的數學訊息，以及如何看見其中的數學關係，之後怎麼轉化成數學想法。而研究設計的問題情境有兩種類型，藉由情境層次的不同，真實記錄學生在建模歷程裡能做的表現與碰到的困難。

This research explores the issue of individual storage space in the classroom, which is closely related to students and in high demand. Therefore, the problem scenario is designed to maximize the use of space and utilizes Modeling research design to analyze the modeling process of third-grade elementary school students. The study aims to understand how students identify contextual clues, extract important mathematical information, see mathematical relationships, and then transform them into mathematical ideas. The research design includes two types of problem scenarios, which, through different levels of scenarios, record the real performance of students in the modeling process and the difficulties they encounter.

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