Eksplorasi Konsep Matematika Bisnis pada UMKM Tepung Tapioka dalam Perspektif RME sebagai Dasar Penyusunan Prototipe Soal Kontekstual bagi Mahasiswa Calon Pendidik

Ahmad Harisul Haq, Naili Luma'ati Noor

Abstract


This study aims to explore business mathematics concepts in a micro, small, and medium enterprise (MSME) engaged in tapioca flour processing from the perspective of Realistic Mathematics Education (RME) and to develop a prototype of contextual problems for preservice mathematics teachers. The study employed a descriptive-exploratory qualitative approach using a single-case study design at UD. Berkah Sejahtera, Pati Regency, Indonesia. Data were collected through observations, semi-structured interviews with the owner and foreman, and documentation of financial records and operational records. Data analysis involved data reduction, data presentation, and conclusion drawing, focusing on horizontal and vertical mathematization processes. The findings indicate that business data can be transformed into mathematical functions representing total cost, total revenue, and profit. These models were subsequently used to develop six contextual problem prototypes across cognitive levels C1–C6 based on the revised Bloom’s taxonomy. This study produced business mathematics problem prototypes that integrate real-world business contexts with formal mathematical representations. However, the prototypes have not yet undergone expert validation or classroom testing.

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DOI: http://dx.doi.org/10.54168/iluminasi.v4i1.573

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