Mathematical Communication of Vocational High School Students in Solving Papuan Ethnomathematics-Based Problems
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Resumo
This study examines how Indonesian vocational high school (SMK) students communicate mathematically while solving systems of three-variable linear equations (SPLTV) embedded in Papuan ethnomathematical contexts. Using a qualitative descriptive design, the study involved ten Grade 10 students representing ten vocational departments. Data were collected through students’ written solutions to ethnomathematics-based SPLTV tasks (e.g., contexts involving culturally familiar objects such as noken and local economic practices) and follow-up semi-structured interviews intended to clarify students’ reasoning, procedural choices, and interpretation of results. Analysis employed a rubric-guided coding scheme comprising three observable indicators of mathematical communication: (1) mathematical expression/modeling (translating contextual information into variables and SPLTV equations), (2) identifying relevant information and coherently explaining solution procedures, and (3) drawing contextual conclusions that interpret solutions in relation to the problem situation. To ensure consistent reporting, each indicator was evaluated by evidence source written work (W), interview evidence (I), or both (W+I) allowing the study to distinguish between students who understood an element but did not document it in writing. Findings indicate that all participants were able to construct an SPLTV model from the cultural context, and most were able to explain elimination–substitution procedures, although several omitted key communication components (e.g., “given/asked” statements or an explicit concluding sentence) in their written work. Overall, eight of ten students produced a valid contextual conclusion when evidence from written work and/or interviews was considered, whereas two students struggled with core procedural steps and therefore could not reach a meaningful conclusion. These results suggest that Papuan cultural contexts can support meaning-making and initial modeling, but explicit support for procedural fluency and written communication norms remains necessary to produce complete, accountable solutions.
Dados da obra
- Tipo
- Artigo
- Periódico
- Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram, v. 14, n. 1, p. 276-304
- Editora
- Universitas Pendidikan Mandalika (UNDIKMA)
- Ano
- 2026 (2026-01-31)
- Idioma
- en
- Palavras-chave
- Mathematical Communication; Papuan Ethnomathematics; Vocational High School; SPLTV; ethnomathematics; Papuan culture; systems of linear equations; three-variable linear equations; vocational high school students; mathematical modeling; written mathematical communication; noken
- Temas
- Álgebra, Educação Profissional e Tecnológica, Etnomatemática, Modelagem Matemática
- DOI
- 10.33394/j-ps.v14i1.17783
- ISSN
- 2338-4530, 2540-7899
- Licença
- cc-by
- Acesso
- Download disponível
- Fontes
- DOAJ — Directory of Open Access Journals; OpenAlex
- Na Biblioteca desde
- 01/10/2026 · verificada em 03/10/2026
Como citar
ABNT
TYAS, Dewi Kristika Findia Ning et al.. Mathematical Communication of Vocational High School Students in Solving Papuan Ethnomathematics-Based Problems. Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram, v. 14, n. 1, p. 276-304, 2026. DOI: https://doi.org/10.33394/j-ps.v14i1.17783.
APA
Tyas, D. K. F. N., Ruamba, M. Y., Agustin, R. D., & Pujilestari, P. (2026). Mathematical Communication of Vocational High School Students in Solving Papuan Ethnomathematics-Based Problems. Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram, 14(1), 276-304. https://doi.org/10.33394/j-ps.v14i1.17783
BibTeX
@article{tyas2026,
author = {Tyas, Dewi Kristika Findia Ning and Ruamba, Marthinus Yohanes and Agustin, Ririn Dwi and Pujilestari, Pujilestari},
title = {Mathematical Communication of Vocational High School Students in Solving Papuan Ethnomathematics-Based Problems},
year = {2026},
journal = {Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram},
volume = {14},
number = {1},
pages = {276-304},
publisher = {Universitas Pendidikan Mandalika (UNDIKMA)},
doi = {10.33394/j-ps.v14i1.17783},
language = {en}
}RIS
TY - JOUR AU - Tyas, Dewi Kristika Findia Ning AU - Ruamba, Marthinus Yohanes AU - Agustin, Ririn Dwi AU - Pujilestari, Pujilestari TI - Mathematical Communication of Vocational High School Students in Solving Papuan Ethnomathematics-Based Problems PY - 2026 JO - Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram VL - 14 IS - 1 SP - 276 EP - 304 DO - 10.33394/j-ps.v14i1.17783 LA - en ER -
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