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M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika
Published by Universitas Wiralodra
ISSN : 25025872     EISSN : 26223627     DOI : -
Core Subject : Education,
Education Mathematics
Mathline is published by Mathematics Education Department of Wiralodra University. Mathline publishes the research issues on mathematics, mathematics education, and could be experiment, research and development, or classroom action research. This Journal are bi-annual publication, on February and August.
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 483 Documents
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A Study Of Differences In Mathematical Reasoning Among Junior High Students With Field Independent And Field Dependent Cognitive Styles Marjud, Fujiama; Hasanah, Aan; Lukman, Lukman; Harahap, Putri Ardhanita
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 10 No. 4 (2025): Mathline : Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v10i4.1049

Abstract

Mathematical reasoning plays a vital role in helping students understand concepts, identify patterns, and solve problems effectively. This study aimed to investigate whether students with Field-independent (FI) and Field-dependent (FD) cognitive styles exhibit significant differences in their mathematical reasoning abilities. To examine the variation in students’ reasoning skills according to their cognitive styles, a quantitative approach using a comparative method was employed. After a preliminary test of homogeneity of variances using Levene's Test, which produced a significance value of 0.820 (> 0.05), Data were analyzed using an Independent Samples t-test. The results indicated that the assumption of equal variances was met, thereby validating the use of parametric analysis. The t-test revealed a statistically significant difference between the two cognitive style groups, with a t-value of 3.232, 40 degrees of freedom, and a significance level of 0.002 (< 0.05). In terms of mathematical reasoning, students identified as FI performed better than those classified as FD. This finding suggests that while FD learners tend to rely more on external cues and structured guidance when solving problems, FI learners are generally more analytical and able to process information independently. The findings also suggest that pupils' capacity for mathematical reasoning is significantly influenced by their cognitive style. These results emphasise the necessity of varied teaching strategies that take into account both learning styles from a pedagogical standpoint. Teachers can build more inclusive, balanced, and productive mathematics learning environments by incorporating exploratory, Problem-based tasks are more suitable for FI learners, whereas structured instructional approaches better support FD learners.
Insurance Premium Determination Model Using The Cobb-Douglas Regression Method On Shallot Production Saudi, Jeremi Heryandi; Kalfin, Kalfin; Diantini, Ni Luh Sri
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 10 No. 4 (2025): Mathline : Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v10i4.1051

Abstract

The production risk of shallots is very high due to their vulnerability to pest attacks, diseases, and climate change, which creates uncertainty that may cause significant losses for farmers. Insurance protection has therefore become a necessity as an effort to mitigate financial losses and maintain farmers’ stability even in the event of crop failure. Accordingly, this study aims to analyze the production factors of shallots in determining agricultural insurance premiums. The study employs the Cobb-Douglas production function to analyze production factors and the pure premium model to calculate shallot insurance premiums. Data were collected through questionnaires distributed to shallot farmers in Tasikmalaya Regency, with 50 respondents included in the analysis. Based on the results, the determination of shallot insurance premiums using the expectation principle produces higher premium values compared to the standard deviation principle. Premiums under the expectation principle are more sensitive to risk variation, whereas the standard deviation principle tends to yield more conservative and relatively stable premiums. The analysis applies the Cobb-Douglas regression model, with shallot production (Y) as the dependent variable, and land area (X1), seeds (X2), fertilizer (X3), pesticide use (X4), and labor (X5) as independent variables, resulting in a coefficient of determination (R²) of 96.2%. The findings imply that the expectation principle is more appropriate for calculating insurance premiums under conditions of high and fluctuating production risk, while the standard deviation principle is more suitable for relatively stable risk conditions. These results can serve as a basis for formulating agricultural insurance policies that are adaptive to risk variation, while simultaneously promoting more effective financial protection for shallot farmers.
Endowment Life Insurance Calculation Modeling with DARA Utility Function and Stochastic Interest Leo, Jason Filbert; Romantica, Krishna Prafidya; Johan, Arsyelina Husni
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 11 No. 1 (2026): Mathline : Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v11i1.993

Abstract

In this research, a 10-year endowment life insurance’s premium will be calculated with a DARA function according to principle of utility equivalence. The calculation results will be performed using a Vasicek interest-based model, among male and female policyholders within the age range of 20-80 years old, and over varying benefit levels. Indonesian Mortality Table IV 2019 is used as reference for mortality data. Stochastic interest is modeled using the Vasicek Model derived through Ordinary Least Square Method (OLS) Method from BI-Rate in the volatile September 2022 - August 2024 period with a monthly step time, which yields the following parameters: , , , resulting in a 95% confidence interval  with standard error . This  indicated high uncertainty in the interest modelling. The results showed that premium rate is heavily affected by this volatility in the interest rates. Premium value is higher for male than female policyholders and it increases faster at higher entry age due to an increase of the mortality rate. The relation between the DARA coefficient and premium value is non-linear despite a slight increase in premium when a larger coefficient is chosen. An increase of benefit rate is followed by a nearly proportional increase of the premium rate. Further research on this topic could analyze the impact of policy horizon and wealth on the premium rate or compare the results with another stochastic model (e.g. CIR model).
The Effect of Peer Tutoring with Project-Based Learning Model on Educational Statistics Course Ratnawati, Oktaviana Ainun; Nugroho, Wahyu; Artuti, Emy
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 11 No. 1 (2026): Mathline : Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v11i1.1005

Abstract

This study investigates the effect of combining peer tutoring with a project-based learning (PjBL) model on the academic performance of students enrolled in an Educational Statistics course within an elementary teacher education program. A quasi-experimental design was employed with two intact classes (n = 42) from a state university in Indonesia. The experimental group received peer-assisted PjBL instruction, while the control group experienced conventional PjBL without peer tutors. Both groups followed the same syllabus, instructor, and assessment structure. Data were collected through standardized Midterm (UTS) and Final (UAS) exams validated by subject-matter experts. The findings revealed that students in the experimental group achieved significantly higher academic performance and demonstrated greater improvement from midterm to final exams compared to the control group, with a moderate effect size (Cohen’s d = 0.59). The integration of peer tutoring within project-based activities effectively reduced anxiety, encouraged collaboration, and deepened conceptual understanding of statistical principles. These results confirm that peer-supported, project-based instruction offers a practical and contextually relevant approach to improving statistical learning outcomes among pre-service teachers. The study underscores the importance of active, student-centered pedagogies in preparing future educators to navigate data-rich educational environments. Future research is recommended to examine the long-term retention, scalability, and adaptation of this model across different subjects and institutional settings.
Determinants of Maternal Mortality in Indonesia: A B-Spline Nonparametric Regression Approach to Identify Nonlinear Relationship Patterns Annas, Suwardi; Aswi, Aswi; Hidayat, Rahmat
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 11 No. 1 (2026): Mathline : Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v11i1.1015

Abstract

Maternal health quality is commonly assessed using the Maternal Mortality Ratio (MMR), which remains relatively high in Indonesia compared to regional and global targets. Understanding the determinants of MMR is therefore crucial for effective health policy formulation. This study aims to analyze the influence of three key factors on MMR in Indonesia: the percentage of women aged 15–49 who have ever been married and given birth to a live child, the percentage of households with access to proper sanitation, and the average years of schooling. To capture potential nonlinear relationships that may not be adequately addressed by conventional parametric regression models, this study employs a nonparametric B-spline regression approach. The analysis was conducted using the R statistical software. Model selection was based on the Generalized Cross-Validation (GCV) criterion to determine the optimal spline configuration. The results show that the optimal model achieves a minimum GCV value of 0.108 and an R² value of 0.8981, indicating a strong explanatory power and excellent model fit. The findings reveal that all three predictor variables have a significant and nonlinear effect on MMR. These results highlight the importance of considering flexible modeling approaches in maternal health studies and provide empirical evidence to support the development of more targeted and effective policies aimed at reducing maternal mortality in Indonesia.
Improving Students' Mathematical Comprehension and Curiosity Through Deep Learning Cycle Learning with The Help of Proprofs Nurfadhilah, Muhammad Fahmi; Syaf, Agus Hikmat; Yayu Nurhayati Rahayu
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 11 No. 1 (2026): Mathline : Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v11i1.1039

Abstract

This research is a quasi-experimental study that aims to investigate the effectiveness of the Deeper Learning Cycle (DELC) model supported by ProProfs media in improving students’ mathematical comprehension and curiosity. The objectives of the study include: (a) describing the implementation of the Deeper Learning Cycle (DELC) model assisted by ProProfs, (b) analyzing the improvement and acquisition of students' mathematical understanding, and (c) investigating the increase in students’ mathematical curiosity before and after the learning process. The study was carried out at MTs Mathla’ul Huda Baleendah, involving class VIIA as the experimental group and class VIIB as the control group, employing a nonequivalent control group design. The findings indicate that: (1) the implementation of the Deeper Learning Cycle (DELC) model assisted by ProProfs was executed very effectively; and (2) the enhancement and attainment of mathematical understanding in the experimental group were significantly greater than those in the control group; and (3) there was a notable increase in students’ mathematical curiosity after the implementation. These findings suggest that integrating the Deeper Learning Cycle (DELC)  model with ProProfs media is effective in fostering meaningful and engaging mathematics learning.
Implementation of Differentiated Instruction in Mathematics Learning to Increase Student Engagement at SMAN 1 Indramayu Rahmatulloh, Rahmatulloh; Alfin, Edward; Supriyatno, Dawud; Natalia, Desi; Nurfatah, Agus; Setyawati, Nunuk; Nugroho, Erwin Raka
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 11 No. 1 (2026): Mathline : Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v11i1.1055

Abstract

This study examines the implementation of differentiated instruction in mathematics learning at SMAN 1 Indramayu, focusing on how teachers design and apply differentiation in terms of content, process, and product, as well as its impact on student engagement. A qualitative descriptive exploratory approach was employed. Data were collected through classroom observations, semi-structured interviews with teachers and students, and document analysis of lesson plans and learning materials. The data were analyzed using an interactive qualitative analysis model involving data reduction, data display, and conclusion drawing, supported by triangulation across data sources to ensure credibility. The findings indicate that teachers successfully implemented differentiated instruction, particularly by adapting learning processes and products to students’ readiness levels and interests. This implementation led to increased student engagement across behavioral, emotional, and cognitive dimensions. Behavioral engagement improved through more active classroom participation, emotional engagement increased as students showed greater enthusiasm and enjoyment, and cognitive engagement strengthened as students demonstrated improved problem-solving and analytical abilities. Additionally, differentiated instruction promoted inclusivity and collaboration, aligning with the objectives of the Merdeka Curriculum. Despite challenges such as limited preparation time and technological constraints, differentiated instruction proved effective in enhancing classroom dynamics and learning outcomes. Continuous professional development and institutional support are recommended to sustain its implementation in mathematics education.
Analysis of Interaction Patterns Among Deaf Students Through The Peer Tutor Method in Mathematics Learning Verjunnea Ali Choiriyan; Fadhilah Rahmawati; Nina Agustyaningrum
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 11 No. 1 (2026): Mathline : Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v11i1.1080

Abstract

Deaf students have characteristics of learning mathematics that are highly dependent on visual channels due to limited linguistic and sensory access, so that abstract mathematics learning often becomes a challenge. The mismatch between these characteristics and teachers' delivery of material that is predominantly verbal or uses complex language structures results in less effective learning communication. This study aims to gain an in-depth understanding of the patterns and dynamics of interaction among deaf students during the application of the peer tutoring method in mathematics learning, particularly in flat geometry. The research used a qualitative approach with a case study design involving 16 deaf students at SLB-B YPPALB Magelang City from elementary to high school levels, divided into four heterogeneous groups based on the level of hearing impairment, additional disabilities, and peer tutor roles. Data were collected through structured classroom observation, learning documentation, and semi-structured interviews, then analyzed through data reduction, data presentation, and conclusion drawing stages. The results showed that interactions between students through peer tutors were more intensive and effective than interactions between students and teachers. These findings are in line with Vygotsky's Social Constructivism theory, which emphasizes the role of social interaction and peer scaffolding in learning. Peer tutors function as linguistic and social mediators through sign language, gestures, and concrete representations, thereby facilitating the understanding of mathematical concepts. The dynamics of interaction are influenced by the degree of hearing loss, additional disabilities, and the communication skills of peer tutors. These findings recommend that mathematics learning for deaf students be strategically designed based on peer tutoring to improve interaction, participation, and conceptual understanding.
Optimization Analysis of Production Costs and Profits of Spicy Noodle Variants of Mie Ratu Situbondo UMKM Using The Branch and Bound Method Aisyah, Sitti; Hasanah, Nur; Ida Fitriana Ambarsari
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 11 No. 1 (2026): Mathline : Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v11i1.1090

Abstract

This study aims to optimize production planning at UMKM Mie Ratu Situbondo, particularly for two main products, namely Mie Ratu Galak and Mie Ratu Ganas, in order to maximize daily profit and reduce inefficiencies in the use of raw materials. The background of this research is the production decision-making process that is still based on estimation, which often leads to suboptimal results and potential waste. The research method used is linear programming with the Simplex method, followed by the Branch and Bound method to obtain integer solutions. Data were collected through observation and interviews with the business owner over a period of more than seven days and were aggregated into daily average values. The analysis was carried out using MATLAB software. The results show that the optimal production combination is 63 portions of Mie Ratu Galak and 67 portions of Mie Ratu Ganas per day, resulting in a maximum profit of Rp1,434,000 per day. Compared to the previous condition, this result indicates an increase in profit and a more efficient allocation of resources. This study provides practical benefits for UMKM actors by offering a systematic and quantitative approach to production planning, which can support better managerial decision-making and improve business performance.
The Development of Wizer.Me-Based Student Worksheets to Improve Students’ Mathematical Creative Thinking Ability Sugiarti, Sri; Luritawaty, Irena Puji; Sumartini, Tina Sri
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 11 No. 1 (2026): Mathline : Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v11i1.1091

Abstract

This study aimed to develop Wizer.Me-based Student Worksheets (LKS) on trigonometric functions to enhance senior high school students’ mathematical creative thinking skills. The research employed a Research and Development (R&D) method using the ADDIE model, which consists of the analysis, design, development, implementation, and evaluation stages. The developed product was validated by a subject-matter expert and a media expert, and subsequently tested for its practicality and effectiveness. The trial subjects consisted of two mathematics teachers and nine twelfth-grade students. The validation results indicated that the worksheets were categorized as highly valid, with a percentage of 89.5% from the subject-matter expert and 85% from the media expert. The practicality test showed that the worksheets were considered highly practical, with an average percentage of 88.5%. The effectiveness test, based on students’ response questionnaires, indicated a highly effective category with a percentage of 87.33%. In addition, the results of the mathematical creative thinking skills test demonstrated improvement, with the N-gain scores falling within the moderate to high categories, particularly on the indicators of fluency and elaboration. Based on these findings, it can be concluded that the developed Wizer.Me-based Student Worksheets are valid, practical, and effective in improving students’ mathematical creative thinking skills. Therefore, the Wizer.Me-based worksheets are feasible to be used as an alternative instructional medium in mathematics learning, particularly on trigonometric function topics at the senior high school level.Bottom of Form

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