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All Journal Jurnal Elemen Al-Jabar : Jurnal Pendidikan Matematika Scholaria: Jurnal Pendidikan dan Kebudayaan POLYGLOT Union: Jurnal Ilmiah Pendidikan Matematika JOHME: Journal of Holistic Mathematics Education Indonesian Journal of Science and Mathematics Education Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Prima: Jurnal Pendidikan Matematika M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika Diklat Review : Jurnal manajemen pendidikan dan pelatihan GAUSS: Jurnal Pendidikan Matematika SEPREN: Journal of Mathematics Education and Applied Alifmatika: Jurnal Pendidikan dan Pembelajaran Matematika Range : Jurnal Pendidikan Matematika Jurnal Anugerah: Jurnal Pengabdian Kepada Masyarakat Bidang Keguruan dan Ilmu Pendidikan Mosharafa: Jurnal Pendidikan Matematika MATH-EDU: Jurnal Ilmu Pendidikan Matematika Journal of Advanced Sciences and Mathematics Education Smart Society: Community Service and Empowerment Journal Brillo Journal JURNAL PENGABDIAN PENDIDIKAN MASYARAKAT (JPPM) Jurnal Nusantara Berbakti JNPM (Jurnal Nasional Pendidikan Matematika) IndoMath: Indonesia Mathematics Education Hexagon: Jurnal Ilmu dan Pendidikan Matematika Jurnal Pendidikan MIPA Media Pendidikan Matematika
Siahaan, Meiva Marthaulina Lestari
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Religion Agriculture, Biological Sciences & Forestry Humanities Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Physics Public Health Social Sciences Other

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Journal : Brillo Journal

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Mathematical Concepts and Cultural Values in Sonaf Tamkesi: Ethnomathematics Study in a Traditional Village on Timor Island Funan, Fedelia; Son , Aloisius Loka; Siahaan, Meiva Marthaulina Lestari
Brillo Journal Vol 3 No 2 (2024): Ethnomathematics and Resilience in Mathematics Education Innovations
Publisher : S&Co Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56773/bj.v3i2.49

Abstract

Mathematics is a universal science, and it is crucial for everyone to master it, both in terms of its applications and its cognitive patterns. The purpose of this research is to explore the concepts of mathematics and cultural values found in the artifacts of Sonaf Tamkesi Manufui. The study was conducted in the traditional village of Tamkesi, south Biboki District, North Central Timor Regency, in July 2023. The subjects of this study were three community leaders. The type of data collected for this research was primary data obtained through documentation and interviews between the researcher and the respondents. Data analysis was conducted through stages of domain analysis, taxonomy, componential analysis, and cultural themes. The research findings indicate that there are concepts of plane geometry in the artifacts such as trapeziums, rectangles, squares, rhombuses, triangles, circles, cylinders, hexagons, and cubes. Meanwhile, the cultural values of the artifacts in Sonaf Tamkesi are the roof symbolizes harmony, the door symbolizes greatness and respect for ancestors, the pillars symbolize vertical relations with ancestors, the betel-nut container symbolizes service, the clay pot symbolizes a gift from ancestors to the living, the hearth symbolizes balance, and harmony in achieving goals.
An Analysis of Grade VIII Students' Difficulties in Solving Circle Story Problems: A Study Based on Polya's Problem-Solving Theory Manekat, Septianingsi; Son, Aloisius Loka; Siahaan, Meiva Marthaulina Lestari
Brillo Journal Vol 4 No 2 (2025): Innovative Practices in Mathematics Teaching and Learning
Publisher : S&Co Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56773/bj.v4i2.70

Abstract

This study aims to explore the difficulties experienced by students of grade VIII of junior high school in solving circle story problems based on Polya's Theory. The research approach used is a qualitative approach. This type of research is qualitative descriptive research. This research was conducted in one of the junior high schools in North Central Timor Regency. The subjects of this study were grade VIII consisting of 20 students. The instruments used were 4 circle material test questions and interviews to determine the factors that cause students to have difficulty working on the questions. Data analysis techniques through the stages of test data analysis, data reduction, data display and conclusion drawing. The results of this study indicate that the difficulties faced by students are 1) difficulty understanding the problem, namely students have difficulty in positioning the function of the symbol on the known and asked parts of the question, 2) difficulty making a solution plan, namely students have difficulty connecting the known and asked elements so that students do not fully understand the strategy that will be used to plan the solution, 3) difficulty completing the solution plan, namely students have difficulty writing a complete formula to be used in solving the problem so that they do not find the results requested by the question, 4) difficulty re-checking, namely students do not know how to make conclusions from the results of their work.
Co-Authors Agung, Kristoforus Nofenaris Ahsan, Zulkaidah Nur Ahzan, Zulkaidah Nur Amsikan, stanislaus - Angelika Rosa Da Lima Leli Astriani Dewi, Ni Putu Yuni Cecilia Novianti Salsinha Damianus Dao Samo Danul, Yuliana Serli Deda, Yohanis Ndapa E. Elvis Napitupulu Eduardus Beo Seso Delvion Elin, Lailin Hijriani Emily Johnson Ermelinda Nainahas Farida Daniel Fitriani Fitriani Fitriani Fitriani Fitriani Funan, Fedelia Gusti Firda Khairunnisa Handayani, Rika Hermina Disnawati, Hermina Hesni Neno Hesni Neno, Hesni Hijriani, Lailin Hijriani, Lailin Juliana Mehelina Herlince Nenohai Klau, Kondradus Yohanes Klau, Maria Fransineti Hoar Kondradus Yohanes Klau Kurnia Putri Sepdikasari Dirgantoro Lailin Hijriani Leli, Angelika Rosa Da Lima Lidwina Felisima Tae Lidwina Felisima Tae LUDGARDIS LEDHENG Maifa, Talisadika Serrisanti Manek, Prudensius Manekat, Septianingsi Melda J Saragih Melda Jaya Saragih, Melda Jaya Merlin Helentina Napitupulu Minanur Rohman Missa, Yeni mone, ferdinandus Naifio, Elvira Riyani Mau Oce Datu Appulembang, Oce Datu Patrisius Nulle Prudensius Manek Rika Handayani Riny Oktora Purba Rut Tae Selestina Nahak Simamarta, Justin Eduardo Simarmata, Justin Eduardo Solo, Maria Fransiska Venidora Son , Aloisius Loka Tae, Rut Talan, Nelciana Tamba, Kimura Patar Tambunan, Siska Nopa Br. Tampani, Margarita Taniu, Deni Toni, Albertus Toni, Albertus - Wua Laja, Yosepha Patricia Yohanes Jefrianus Kehi Yosepha P. W. Laja Yuliana Serli Danul Zulkaidah Nur Ahsan Zulkaidah Nur Ahzan