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Tabita Wahyu Triutami
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Griya Journal of Mathematics Education and Application
Published by Universitas Mataram
ISSN : 27761258     EISSN : 2776124X     DOI : https://doi.org/10.29303/griya.v1i2
Core Subject : Education,
Education Mathematics
Griya Journal of Mathematics Education and Application adalah Jurnal Matematika dan Pendidikan Matematika yang dikelola oleh Program Studi S1 Pendidikan Matematika Universitas Mataram. Fokus dan ruang lingkup dari jurnal ini adalah artikel ilmiah baik berupa hasil penelitian, review artikel maupun kajian pustaka khusus bidang Matematika dan Pendidikan Matematika.
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 560 Documents
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Mathematical Resilience dalam Perspektif Filsafat Pendidikan Matematika Nena Meilan; Varialya Kayla Azzahra; Anggun Badu Kusuma
Griya Journal of Mathematics Education and Application Vol. 6 No. 2 (2026): Juni 2026
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v6i2.1236

Abstract

Mathematical resilience is a student’s ability to persevere, remain confident, and maintain a positive attitude when facing difficulties in learning mathematics. Low mathematical resilience can lead to math anxiety, low motivation to learn, and a decline in academic achievement. Although it has been extensively studied from psychological and pedagogical perspectives, research examining mathematical resilience from the perspective of the philosophy of mathematics education remains limited. This article aims to analyze the concept, influencing factors, and implications of mathematical resilience in mathematics learning. The study employs a literature review method by analyzing articles published between 2019 and 2026 from the Google Scholar and ERIC databases. The findings indicate that mathematical resilience encompasses the dimensions of value, struggle, growth, support, and culture, which are influenced by cognitive, psychological, and social factors. The absolutist paradigm tends to hinder the development of resilience, whereas constructivism and fallibilism support it by accepting mistakes as part of the learning process. These findings underscore the importance of a psychologically safe learning environment, as well as the implementation of productive struggle and open-ended problems to enhance students’ mathematical resilience.
Peningkatan Pemahaman Konsep Trigonometri melalui Pembelajaran Discovery Learning Muh. Afdal Nur; Mas’ud Badolo; Arifuddin Arifuddin
Griya Journal of Mathematics Education and Application Vol. 6 No. 2 (2026): Juni 2026
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v6i2.1239

Abstract

This classroom action research aimed to improve students' conceptual understanding of trigonometry through the implementation of the Discovery Learning model. The study was motivated by the low conceptual understanding of students, particularly in explaining concepts, connecting trigonometric concepts, and applying them to various problem-solving situations. The research was conducted in Class X Unggul 3 of SMA Negeri 3 Parepare during the 2025/2026 academic year and involved 32 students. The study employed a mixed-methods approach and was carried out in three cycles, each consisting of planning, action, observation, and reflection stages. Data were collected through conceptual understanding tests, observations, interviews, and documentation. The results showed a consistent improvement in students’ conceptual understanding across all indicators. The average conceptual understanding score increased from 56 in the pre-cycle stage to 68 in Cycle I, 78 in Cycle II, and 88 in Cycle III. Learning mastery also improved from 31.25% in the pre-cycle stage to 56.25% in Cycle I, 78.13% in Cycle II, and 93.75% in Cycle III. These findings indicate that the implementation of the Discovery Learning model contributed to the improvement of students’ conceptual understanding and learning mastery in trigonometry through active engagement in the process of discovering and constructing mathematical concepts.
Analisis Filosofis terhadap Persepsi “Matematika Itu Sulit” dan Implikasinya terhadap Motivasi Belajar Siswa Nur Elda Azaria; Reynata Tri Putri Apriliana; Anggun Badu Kusuma
Griya Journal of Mathematics Education and Application Vol. 6 No. 2 (2026): Juni 2026
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v6i2.1242

Abstract

This article examines the philosophical belief that "mathematics is difficult" and how it affects students' motivation to learn. By looking at numerous scientific sources about students' perspectives, learning motivation, and mathematical philosophy, the study uses a literature review methodology. The results show that both internal and external influences affect the impression of mathematics as a challenging subject. Low self-esteem, anxiety about maths, a lack of basic abilities, a fear of failing, and bad learning experiences are examples of internal issues. Lack of parental support, academic pressure, boring instructional strategies, and the negative social stigma associated with mathematics are examples of external causes. Four philosophical schools of thought—formalism, constructivism, logicism, and intuitionism—can be used to understand this perception. Negative judgements also dramatically lower kids' drive to learn, which results in passive behaviour, low self-esteem, and poor academic achievement. Positive views, on the other hand, can improve motivation, critical thinking, and problem-solving skills. Therefore, improving students' views and motivation requires developing relevant, participatory, and student-centered mathematics instruction.
Pengaruh Adversity Quotient (AQ) terhadap Kemampuan Numerasi Matematis Siswa Kels VIII SMPN 1 Batulayar Nazwa Risfaida; Ketut Sarjana; Ulfa Lu'luilmaknun
Griya Journal of Mathematics Education and Application Vol. 6 No. 2 (2026): Juni 2026
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v6i2.1243

Abstract

Rendahnya kemampuan numerasi matematis siswa sebagaimana yang tercermin pada hasil PISA 2022 serta observasi awal di SMPN 1 Batulayar masih menjadi masalah yang sering dijumpai. Faktor non kognitif seperti Adversity Quotient (AQ) diduga turut memengaruhi kemampuan siswa dalam menyelesaikan permasalahan numerasi matematis. Penelitian ini bertujuan untuk mengetahui bagaimana pengaruh AQ terhadap kemampuan numerasi matematis siswa kelas VIII SMPN 1 Batulayar tahun ajaran 2025/2026 dan seberapa besar pengaruhnya. Penelitian ini menggunakan pendekatan ex post facto dengan teknik sampel jenuh sehingga seluruh populasi dijadikan sampel penelitian yang berukuran 72 orang. Instrumen dalam penelitian ini adalah angket adversity quotient serta tes kemampuan numerasi matematis. Dengan menggunakan analisis regresi linier sederhana dan diperoleh hasil penelitian yaitu 1) Terdapat pengaruh yang positif dan signifikan antara AQ dengan kemampuan numerasi matematis siswa kelas VIII SMPN 1 Batulayar tahun ajaran 2025/2026 serta 2) Besarnya pengaruh antara AQ dengan kemampuan numerasi matematis siswa kelas VIII SMPN 1 Batulayar tahun ajaran 2025/2026 ialah sedangkan sisanya yaitu dipengaruhi oleh faktor lain yang tidak diteliti dalam penelitian ini.
Pengaruh Self Confidence terhadap Kemampuan Komunikasi Matematis Siswa Kelas VIII MTsN 1 Mataram Tahun Ajaran 2025/2026 Zavira Mardhatillah; Ketut Sarjana; Eka Kurniawan
Griya Journal of Mathematics Education and Application Vol. 6 No. 2 (2026): Juni 2026
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v6i2.1247

Abstract

This study aims to determine the significant effect of self-confidence on the mathematical communication skills of eighth-grade students at MTsN 1 Mataram in the 2025/2026 academic year. This study used a quantitative method with an ex post facto approach. The population in this study was all 406 eighth-grade students, with a sample of 108 students selected using cluster random sampling. Data collection techniques in this study used a self-confidence questionnaire and a mathematical communication skills test. Data analysis techniques used were descriptive and inferential statistical analysis with the help of SPSS. The results of the data analysis obtained a regression equation of , a correlation coefficient of 0.721, and a coefficient of determination of 52%. This indicates a significant effect of self-confidence on students' mathematical communication skills.
Pengaruh Penerapan Model Problem-Based Learning melalui LKPD Berbasis Kebudayaan Daerah terhadap Kemampuan Numerasi Siswa Kelas X SMAN 3 Mataram Nisa Husniatissibhi; Ketut Sarjana; Eka Kurniawan
Griya Journal of Mathematics Education and Application Vol. 6 No. 2 (2026): Juni 2026
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v6i2.1250

Abstract

Numeracy skills are essential competencies that enable students to understand, process, and interpret mathematical information in various real-life contexts. However, students’ numeracy skills still need improvement, particularly in statistics learning. This study aimed to determine the effect of implementing the Problem-Based Learning (PBL) model through local culture-based Student Worksheets (LKPD) on the numeracy skills of tenth-grade students at SMAN 3 Mataram. This study employed a quasi-experimental method using a posttest-only control group design. The sample consisted of 78 students divided into an experimental class and a control class. Numeracy data were collected using a test instrument that had been validated by experts. The findings showed that students who learned through PBL with local culture-based LKPD achieved higher numeracy skills than those who received direct instruction. The results of the independent sample t-test indicated a significant difference between the two groups, with a very high level of instructional effect. These findings suggest that the implementation of PBL through local culture-based LKPD is effective in supporting the improvement of students’ numeracy skills in statistics learning.
Optimasi Alokasi Sumber Daya dan Mekanisasi Pada Budidaya Padi Menggunakan Mixed Integer Linear Programming Retno Ayu Zalianti; Lasker Pangarapan Sinaga
Griya Journal of Mathematics Education and Application Vol. 6 No. 3 (2026): September 2026
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v6i3.1254

Abstract

Budidaya padi merupakan salah satu sektor pertanian yang memiliki peran penting dalam mendukung ketahanan pangan nasional. Namun, pengelolaan sumber daya pada budidaya padi masih sering dilakukan berdasarkan pengalaman petani sehingga berpotensi menyebabkan inefisiensi biaya produksi. Selain penggunaan input material dan tenaga kerja, perkembangan mekanisasi pertanian juga menimbulkan kebutuhan pengambilan keputusan terkait penggunaan teknologi pertanian yang optimal. Penelitian ini bertujuan untuk membangun model Mixed Integer Linear Programming (MILP) guna mengoptimalkan alokasi sumber daya dan mekanisasi pada budidaya padi. Model yang dibangun melibatkan variabel kontinu berupa alokasi input material, variabel integer berupa jumlah tenaga kerja, dan variabel biner berupa keputusan penggunaan mesin pertanian. Parameter penelitian meliputi luas lahan, produktivitas maksimum, harga jual gabah, biaya input material, biaya tenaga kerja, kebutuhan minimum tenaga kerja, dan biaya penggunaan mesin pertanian. Model optimasi diselesaikan menggunakan perangkat lunak Python. Hasil optimasi menunjukkan bahwa model menghasilkan solusi optimal dengan keuntungan maksimum sebesar Rp37.336.566,00. Model juga menunjukkan penggunaan mekanisasi pada tahap penanaman, penyiangan, dan pemanenan. Hasil penelitian menunjukkan bahwa pendekatan MILP mampu menghasilkan kombinasi penggunaan sumber daya dan mekanisasi yang lebih efisien pada budidaya padi.
Comparative Mathematical Modeling of Coffee Shelf-Life Using Linear Regression and Ensemble Learning under Simulated Storage Conditions Lingga Gita Dwikasari; Dilla Afriansyah
Griya Journal of Mathematics Education and Application Vol. 6 No. 2 (2026): Juni 2026
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v6i2.1276

Abstract

management. However, comparative studies evaluating interpretable statistical models and ensemble learning algorithms for coffee shelf-life prediction remain limited, particularly using simulation-based datasets. This study compared the predictive performance of Multiple Linear Regression (MLR), Random Forest Regression (RFR), and Gradient Boosting Regression (GBR) using a simulation-based dataset of 400 observations representing realistic storage conditions. Model performance was evaluated using Mean Absolute Error (MAE), Root Mean Square Error (RMSE), and the coefficient of determination (R²). MLR achieved the best performance with the lowest MAE (10.01 days), the lowest RMSE (12.55 days), and the highest R² (0.8649), outperforming both ensemble learning models. Feature importance analysis consistently identified storage temperature as the most influential predictor of coffee shelf-life. These findings demonstrate that increased model complexity does not necessarily improve predictive accuracy and support the use of simulation-based datasets for developing predictive models prior to validation with experimental data.
Desain E-LKPD Berbasis Concept Image Siswa pada Materi Barisan dan Deret Dita Oktavihari; Junaidi Junaidi; Gilang Primajati; M. Gunawan Supiarmo; Eka Kurniawan
Griya Journal of Mathematics Education and Application Vol. 6 No. 2 (2026): Juni 2026
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v6i2.1329

Abstract

This study aims to develop a concept image-based E-LKPD on sequences and series using the ADDIE model.This development research was carried out up to the Development stage, which includes Analysis, Design,and Development. In the analysis stage, learning needs were identified through concept image tests,interviews, and documentation studies. The results of the analysis showed that students still had difficultyin understanding the concepts of sequences and series in depth, differentiating the concepts of sequences andseries, and connecting various mathematical representations. Based on these needs, an E-LKPD was designedthat included problem-oriented activities, pattern exploration, concept construction, concept reflection, andcontextual application. In the development stage, the E-LKPD prototype was compiled and validated bymaterial experts and media experts to assess the feasibility of content, presentation, language, andappearance. The validation results showed that the developed E-LKPD met the valid criteria and was suitablefor use as a supporting teaching material for mathematics learning. The concept image-based E-LKPD isexpected to help students build a better conceptual understanding of sequences and series through theintegration of visual, verbal, numeric, and symbolic representations.
Systematic Literature Review Model Matematika Kompartemen pada Penyakit dan Kontagion Sosial Gilang Primajati; M. Gunawan Supiarmo
Griya Journal of Mathematics Education and Application Vol. 6 No. 2 (2026): Juni 2026
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v6i2.1339

Abstract

Epidemic-type mathematical compartmental models are no longer limited to biological infectious diseases; they are increasingly adapted to behavioral and social contagion phenomena. This study aimed to systematically review the use of SIR, SEIR, SEIRS, and modified compartmental models in infectious disease transmission and social phenomena. A systematic literature review was conducted by screening 24 full-text articles collected from journal databases and publisher repositories from 2020 to 2026. Eighteen primary modelling studies were included in the main synthesis, while six review or guideline articles were used as theoretical and methodological support. Data were extracted on model type, domain, compartments, data source, mathematical analysis, simulation method, software, and major findings. The reviewed infectious disease studies addressed tuberculosis, malaria, COVID-19, and typhus, whereas social-domain studies covered online game addiction, social media addiction (TikTok), online gambling, gambling crime, and impulsive buying. SEIR was the most frequent structure, followed by SEIRS and SIR. Most studies calculated equilibrium points and the basic reproduction number; fewer studies reported sensitivity analysis, parameter calibration, uncertainty analysis, or empirical validation. The findings indicate that compartmental models are flexible analytical tools across biological and social systems, but future studies need stronger reporting transparency, parameter justification, validation, and reproducible simulation procedures.

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