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All Journal Proceeding of International Conference on Science, Education, and Technology Hipotenusa: Journal of Mathematical Society
Ari Indriani
IKIP PGRI Bojonegoro, Indonesia
Education Mathematics

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The Process of Assimilation-Accommodation in Solving the Problems of Proportion Junarti Junarti; Ari Indriani; Istiqomah Istiqomah
International Conference on Science, Education, and Technology Vol. 7 (2021)
Publisher : Universitas Negeri Semarang

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Abstract

The purpose of this study was to describe the assimilation-accommodation process on a proportion topic. The descriptive qualitative approach was utilized to elucidate the assimilation-accommodation process. Data collection was accomplished using assessments administered to 13 students online and 7 students offline. The participants were chosen from a pool of twenty students based on their classification of procedural predictions of mathematical connection indicators. Six research subjects were selected from seven students who satisfied the expected indications of assimilation, accommodation, and assimilation-accommodation, with each category two students having the identical work. Additionally, data are gathered through tests and interviews that have been triangulated for source and method validity. The findings indicated the first two subjects demonstrate the assimilation process through the phases of proportion concept knowledge taught in primary school. This is shown by how the problem is solved, which begins with formulating the symbolic form proportion formula in variables. In proportion, the following two subjects demonstrate the accommodation process by converting their knowledge into different types of formula produced by assimilation groups, which is in the form of numbers. This is shown by how the problem is solved by immediately writing the answer into the proportion form without using another variable symbol. Meanwhile, the accommodation-assimilation process indicate a proclivity for modifying prior information by dividing proportion formula into different solution procedures from the assimilation and accommodation groups, i.e., in mixed form (some symbols and some numbers). The findings of this study indicate that the assimilation-accommodation process can aid in the acceleration of problem solutions in new materials.
Philosophical Values of the Sedulur Sikep (Samin Tribe) of Bojonegoro: Contextual Resources for Mathematics Learning Dwi Erna Novianti; Puput Suriyah; Ari Indriani; Nurul Nadiya Abu Hassan
Hipotenusa: Journal of Mathematical Society Vol. 8 No. 1 (2026): Hipotenusa : Journal of Mathematical Society
Publisher : Program Studi Tadris Matematika Universitas Islam Negeri (UIN) Salatiga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18326/hipotenusa.v8i1.6779

Abstract

This study aims to identify the philosophical values embedded in the Sedulur Sikep (Samin) community in Bojonegoro and reconstruct them into a contextual mathematics learning design. The study employed a qualitative ethnographic approach involving six participants, consisting of community leaders and members selected purposively based on their knowledge of Sedulur Sikep teachings and practices. Data were collected through participant observation, in-depth interviews, and document analysis. Data analysis was conducted using open coding, thematic categorization, and interpretive analysis to examine the relationship between cultural values and mathematics learning contexts. The findings indicate that the values of ora jumput (not taking others’ rights), ora bedok (honesty), and ora srei (not being greedy) function as ethical principles consistently reflected in social practices related to resource management, economic interactions, and everyday decision-making. These values were reconstructed into authentic contexts for mathematics learning through tasks involving fair distribution, procedural consistency, and decision-making under constraints. The integration of cultural values was framed through Contextual Teaching and Learning (CTL) and Realistic Mathematics Education (RME), positioning cultural practices as starting points for mathematical activity. The contribution of this study lies in proposing a learning design framework that connects Sedulur Sikep philosophical values with operational mathematical contexts. The findings extend ethnomathematics research beyond cultural identification toward the reconstruction of cultural values as resources for contextual mathematics learning design.
Co-Authors Dwi Erna Novianti Istiqomah Istiqomah Junarti Nurul Nadiya Abu Hassan Puput Suriyah