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All Journal Kontinu: Jurnal Penelitian Didaktik Matematika NUMERICAL (Jurnal Matematika dan Pendidikan Matematika) Indiktika : Jurnal Inovasi Pendidikan Matematika Jurnal Pendidikan Matematika (JUDIKA EDUCATION) Jurnal Cendekia : Jurnal Pendidikan Matematika Jurnal Absis : Jurnal Pendidikan Matematika dan Matematika Nabla Dewantara : Jurnal Pendidikan Matematika Jurnal Math-UMB.EDU Jurnal Pengabdian
Neni Lismareni, Neni
Program Studi Pendidikan Matematika, Universitas Sriwijaya,Indonesia
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Developing a pmri-based learning design for social arithmetic through online buying and selling contexts Oktalina, Dian; Widiawati; Lismareni, Neni
Jurnal Absis: Jurnal Pendidikan Matematika dan Matematika Vol. 8 No. 3 (2025): Jurnal Absis
Publisher : Program Studi Pendidikan Matematika Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/absis.v8i3.3365

Abstract

Social arithmetic is closely related to students’ daily economic activities; however, many students experience difficulties in understanding its concepts due to the abstract presentation of learning materials. This study aimed to develop a Hypothetical Learning Trajectory (HLT) based on the Indonesian Realistic Mathematics Education (PMRI) approach by utilizing online buying and selling as a learning context. The study employed a design research methodology of the developmental research type within a qualitative framework. The research was conducted through three phases: preparing for the experiment, design experiment, and retrospective analysis. Participants were seventh-grade students at SMP Muhammadiyah Pagaralam during the 2024/2025 academic year. Data were collected through classroom observations, interviews, document analysis, and pre- and post-tests. The results indicate that the developed HLT effectively supports students in constructing a meaningful understanding of social arithmetic concepts, such as discounts, taxes, and final costs, through contextual and experiential learning activities. The PMRI-based learning design also encourages active student participation and supports the development of critical thinking skills. These findings suggest that the proposed learning trajectory can serve as a practical reference for designing context-based social arithmetic instruction.
Co-Authors Adiansyah, Marta Anggriani, Winda Meilisa Aristya, Irma Sendy ERVIANA, RIA Feriza, Firman Fransiska, Welly Indah Widyaningrum Islamy, Diah Putri Lestari, Reza Mayreista, Dita Mukles, M. Ikhsan Novi Susanti Novitasari, Nadhea Oktalina, Dian Putri Islamy, Diah Rohani, Tri Sesianti, Riri Sigit Nugroho Umi Kalsum Widiawati Widiawati Widiawati, Widiawati Yoga Pratama Yolanda, Novila