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All Journal JPMI (Jurnal Pembelajaran Matematika Inovatif) Pi Radian Journal
Maulani, Indria
Unknown Affiliation
Mathematics

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Mathematical ideas embedded in water debit practices of sand sellers in Ciseupan: An ethnomathematics study Muthia, Shahla Naila; Maulani, Indria
Pi Radian: Journal of Mathematics Education Vol. 3 No. 1 (2025): Pi Radian Journal
Publisher : CV. Pustaka Literasi Ilmiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63214/piradian.v3i1.pp51-60

Abstract

Indonesia is a country rich in local cultural practices that not only reflect traditional values but also hold great potential for the development of contextual learning based on local wisdom. One such form of wisdom is reflected in the economic activities of the community of Kampung Ciseupan, South Cimahi, in the form of sand sales practices that have been passed down from generation to generation and contain various mathematical concepts that have not been widely explored. This study aims to explore the mathematical concepts embedded in these cultural practices, particularly the concept of flow rate that emerges in sand loading and unloading activities. The approach used is ethnography, in line with the principles of ethnomathematics, which examines mathematical practices from the perspective of the cultural practitioners themselves. Data was collected through field observations and semi-structured interviews with the main participant, Mrs. LM, a sand seller. The researcher served as the primary instrument in observing, exploring, and analyzing the connection between cultural activities and mathematical concepts. The research findings indicate that sand selling activities contain concepts of debit, volume, distance, speed, and time that are implicitly present in community practices. These findings suggest that local culture can serve as an authentic, contextual, and relevant source of mathematical learning for students' daily lives, and can encourage students to understand and appreciate their own culture.  
The impact of problem based learning with google sites on mathematics learning outcomes Pakih, Sopwan Muhamad; Maulani, Indria
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol. 9 No. 1s (2026): Special Issue
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v9i1s.31071

Abstract

Mathematics learning outcomes remain an important concern in the learning process. However, in practice, many students still face difficulties, especially with the Pythagorean Theorem. These difficulties are generally related to a lack of conceptual understanding, inaccuracy in applying formulas, and difficulties in simplifying root forms. This study aims to examine the effect of Google Sites-assisted Problem-Based Learning (PBL) on learning outcomes for the Pythagorean Theorem. A quantitative approach with a one-group pretest-posttest design was used in this study, involving eighth-grade students at SMPN 3 Cikalong Wetan in the 2023/2024 academic year. One class was selected using saturated sampling. Data were collected through tests on learning outcomes of the Pythagorean theorem and questionnaires on students' interest in learning. The data were processed using a paired sample t-test, while the questionnaire data were analyzed based on descriptive statistics. The analysis results showed a significance value of 0.001, so that in a one-tailed test of 0.0005 (< 0.05) with a t-value of –19.426. These results indicate a significant effect on students' mathematics learning outcomes after the application of this learning model. In addition, students' learning interest was in the good category. The findings of this study indicate that the application of Google Sites-assisted Problem Based Learning (PBL) has a positive effect on improving learning outcomes in the Pythagorean theorem material.
Co-Authors Muthia, Shahla Naila Pakih, Sopwan Muhamad