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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 472 Documents
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Relational Understanding in Solving Mathematical Problems: A Systematic Literature Review Mefiana, Syifa Ananda; Juandi, Dadang
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 8 No. 2 (2023): Mathline: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v8i2.409

Abstract

Relational understanding is the ability to apply and relate one material to another and know the reason. The purpose of this research is to conduct a study related to relational understanding in solving mathematical problems at the elementary, junior high, junior high, high school and university levels. This study used the systematic literature review (SLR) method, with a sample of 21 research results related to relational understanding in solving mathematical problems published within the last nine years. Data collection was carried out by documenting all research related to relational understanding in solving mathematical problems in terms of research year, publication platform index, education level, research demographics, research type and research results. The results showed that the most years of related publications were in 2022, the dominating participants were at the junior high school level, Java Island as one of the largest populations was the most frequent location for research and qualitative research was the type of research often used by researchers with mixed results depending on students' initial mathematical abilities, learning styles, cognitive or non-cognitive styles of students and effective learning methods used to improve relational understanding.
Students Learning Obstacles Related to Mathematical Literacy Problem: A Systematic Literature Review Rayhan, Nabila Cynthia; Juandi, Dadang
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 8 No. 2 (2023): Mathline: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v8i2.411

Abstract

This study aims to describe the results of research on learning obstacles related to mathematical literacy problems. This research uses the Systematic Literature Review (SLR) method. The sample consisted of 13 studies on learning obstacles related to mathematical literacy problems published from 2017 to March 2023. The results of this study were reviewed based on the publication media, year of publication, level of study, research location, materials used in the study, and results on learning obstacle research related to mathematical literacy problems. Using the SLR method, It was found that the most research was published in the Repository UPI while the most articles were published in SINTA 3, the highest number of published research in 2022, the highest level of education is carried out at the junior high school level, the location was predominantly carried out in Java Island, Space and Shape content and Uncertainty and Data content was most widely used in learning obstacle research related to mathematical literacy problems, and in terms of three types of learning obstacles namely, ontogenic obstacles, didactical obstacles, and epistemological obstacles. It was detected that epistemological obstacles were found in as much as 100% throughout the study, while ontogenic obstacles were found in as much as 69%, and didactical obstacles were found in much as 46%.
Forecasting Stock Price Using Armax-Garchx Model During The Covid-19 Pandemic Parwati, Lusiana Sani; Nugrahani, Endar Hasafah; Budiarti, Retno
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 8 No. 2 (2023): Mathline: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v8i2.413

Abstract

The Covid-19 pandemic, which was proclaimed by the World Health Organization (WHO) on March 2020, has impacted stock risk on the capital market. Stock price forecasting can be used to provide future stock projection prices in order to reduce risk. The ARMA GARCH model and its development model can forecast stock prices by incorporating exogenous factors such as the ARMAX GARCH, ARMA GARCHX, and ARMAX GARCHX models. PT Mitra Keluarga Karyasehat Tbk's stock price is analyzed in this study, along with the exogenous factors of total daily positive cases and total daily fatalities cases of Covid-19 from March 16, 2020, to January 31, 2022.The results of several models show that based on MAPE value the ARMAX GARCH model has better accuracy in forecasting stock price.
Efforts To Improve Students' Mathematical Concepts Understanding Ability Using Dienes Block Media Kusnandar, Nandang; Yusuf, Yusfita
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 8 No. 2 (2023): Mathline: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v8i2.416

Abstract

The ability to understand mathematical concepts is one of the most important abilities and must be owned by every student. This happens because the ability to understand concepts is the basis for having other The ability to understand mathematical concepts is one of the most important abilities and must be owned by every student. This happens because the ability to understand concepts is the basis for having other mathematical abilities. However, the reality on the ground, according to the results of observations and interviews with an elementary school (SD) teacher in Sumedang Regency, is known that in learning mathematics, the ability to understand mathematics is still relatively low. One of the media that is expected to improve the ability of students to understand mathematical concepts is dienes block media. This study aims to determine whether there are differences in the ability to understand mathematical concepts between students who receive learning using Dienes block media and students who learn without using Dienes block media in addition material. The method used in this study was quasi-experimental with nonequivalent pre-test-post-test control group design. The instrument used is a test of ability to understand mathematical concepts (pre-test and post-test). The population in this study were all grade II students at SDN Cilengkrang 2022/2023 with a total of 54 people. The sample used was the total sample, namely class II A which consisted of 29 students as the control class and class II B which consisted of 25 students as the experimental class. In the learning process, the experimental class used Dienes block media and the control class did not use Dienes block media. Based on the results of data analysis, it was concluded that there were differences in the ability to understand mathematical concepts between students who received learning using Dienes block media and students who received learning without using Dienes block media in addition material. Students who receive learning with Dienes block media have the ability to understand mathematical concepts better than students who learn without Dienes block media.
Influence of The Liveworksheet Assisted Problem-Based Learning Model on Students' Mathematical Literacy Ability Asma Ul Husna; Meyta Dwi Kurniasih
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 8 No. 2 (2023): Mathline: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v8i2.419

Abstract

Mathematical literacy ability is a person's ability to understand mathematical problems that exist in everyday life. This study aims to describe the effect of the LiveWorksheet-assisted problem based learning (PBL) model on students' mathematical literacy abilities in Trigonometry material. The sample of this study were 2 classes with a total of 64 high school students in class X. This quantitative research method used data analysis techniques with the 3-test which had previously passed the analysis prerequisite tests, namely the normality test and homogeneity test. The results showed that the effect of the LKS-assisted PBL model had an effect on the mathematical literacy skills of class X students. This was indicated by the average problem-based learning model assisted by LKS obtaining an average value of 89.125 and the control class obtaining an average value of 83.218 so that it has a difference of 5.907 . Thus, it can be said that the class that applies the LKS-assisted problem-based learning model obtains a greater average score. , so this causes  to be rejected at a significance level of 0.05 and degrees of freedom , then there is an effect of the PBL Model Liveworksheet on students' mathematical literacy abilities.
Determination of Critical Node in The Java Sumatra Kalimantan Submarine Cable Communication System Rachmadini, Haliza Suci; Aman, Amril; Paruhum Silalahi, Bib
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 8 No. 2 (2023): Mathline: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v8i2.422

Abstract

Disruption of the Java Sumatra Kalimantan (Jasuka) submarine cable communication system significantly impacted the smooth flow of communications. To reduce the impact, the detection of critical nodes in the network uses the critical node detection method to identify the most important nodes in the Jasuka network. This study aims to apply the critical node detection method as integer linear programming on the Jasuka network to obtain critical nodes by minimizing the number of paired connections on the nodes. The data in this research comes from the Jasuka network, represented as nodes and edges, and then analyzed using Python 3.11 software. The results showed that the critical node of the Jasuka submarine cable communication system is located at index 5 and 14 or the landing point Dumai, Riau and Palembang Jambi. The critical node on the Jasuka network can be a reference for Telkom Indonesia to pay special attention to the landing point because the damage will impact the entire network.
A Problem-Based Learning Worksheet: An Effort to Support Students’ Critical Thinking Skills on Cartesian Coordinates Topic Kinanti, Sekar; Rejeki, Sri
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 8 No. 2 (2023): Mathline: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v8i2.423

Abstract

Critical thinking is one of the essential skills in this 21st century. Students' critical thinking in mathematics has yet to be optimal. Therefore, this study aims to produce Problem-Based Learning Worksheets, particularly on the Cartesian Diagram topic, that are valid and practical to support students' critical thinking skills. The critical thinking skills indicators are giving simple explanations, building basic skills, concluding, giving advanced reasons, and devising strategies. This research uses a 4-D development model consisting of 4 stages: define, design, development, and disseminate. However, this article will only discuss the first three stages. This study involved two experts in mathematics content, two in mathematics learning media, and 34 eight grade public junior high school students in Kartasura, Central Java, Indonesia. The data collection method applied in this study is questionnaires. Based on the data analysis, the worksheet developed is valid (with the good category), with an average score of 4,1 and 4,0 from the content and learning media experts, respectively. At the same time, students' responses on the practicality of the worksheets were an average of 4,2, which is in the excellent category. In addition, it shows that 64,70 % of students reaching the minimum score requirement (75) for the critical thinking test. Therefore, the Problem-Based Learning worksheets developed reach valid and practical categories to support students' critical thinking skills.
Ethnomathematics Exploration of The Taganing Musical Instrument Rahmadani, Tasya; Reflina, Reflina
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 8 No. 2 (2023): Mathline: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v8i2.425

Abstract

Education and culture are habits that are interconnected with human life. In education, culture can be used as a medium of learning both in schools and in culture itself. North Sumatra has various unique ethnicities, one of which is the Toba Batak which must be preserved and passed down from generation to generation. One of the Toba Batak cultures is the Taganing , a traditional musical instrument consisting of five drums with different heights and diameters that produce different tones and are played by two players. The purpose of this study is to explore what mathematical concepts exist in the Taganing  musical instrument so that it can be implemented in learning mathematics.This research uses qualitative with ethnography methods with research instruments in the from of observation and documentation. The results of this study indicate that the Taganing  musical instrument contains the concept of geometry and integral calculus.
Exploration of The Didactic Situation of Linear Equations in SMP Suci Murni Medan Nilam Sari
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 8 No. 2 (2023): Mathline: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v8i2.426

Abstract

One way to design good learning is to pay attention to the possibility of the learning flow that will occur in the classroom and the possible processes that students will go through, then make up what the teacher should do when this happens. These possibilities are also called the hypothetical learning trajectory. In this study focused on the design of mathematics learning on the material system of two-variable linear equations in grade VIII junior high school involving one class of 18 people. The instruments used were tests and non-tests. This study aims to explore pedagogical phenomena to formulate alternative learning designs for linear equations through problem-based learning. Perspectives and pedagogical encouragement about teaching mathematics during the learning process are reflected in the deepest thoughts and emotions of students and teachers. The research method uses a qualitative type of didactical design research, which is a type of learning design research where learning designs can be formulated from several perspectives, namely the theory of learning trajectories and their obstacles and learning situations during the learning process. The stages carried out in this research are: 1) introduction and analysis of the problem; 2) analysing the curriculum related to the mathematics textbooks used; 3) Identify the characteristics of learning obstacles and learning barriers; 4) identify didactic situations during learning.The results of the research yielded the characteristics of learning trajectories and learning obstacles, which were used as the basis for the pedagogical situation of learning linear equation material through exploratory problem-based learning.
Survival Analysis of Patient Healing in Mental Disorders Using Kaplan Meier’s Method and Log-Rank Test Darmawan, Rahmat; Lubis, Riri Syafitri
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 8 No. 2 (2023): Mathline: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v8i2.428

Abstract

A mental disorder is a mental dysfunction that can interfere with everyday activities. Based on the characteristics of the area of the City of Medan there are problems with mental disorders, the high number of ODGJ cases is very dangerous for society. To this end, a survival analysis of the ODGJ patient’s lifespan time was carried out at the Karsa Medan Soul Hospital with the Kaplan-Meier test as a calculation of the estimate of the healing time and the Log-Rank test to test the differences in the survival function of the treatment time of ODGJ patients. The conclusion of the test results obtained with the help of the R Studio software program version 2022.02.1+461 was that the survival function curve in ODGJ patients had an estimate of survival functions at ODGJ from a 2-day recovery time with a value of 0.99759 to 92 days with the value of 0,00000. Based on the results of the Log-Rank test with α = 0.05, obtained the test results for gender is 4.40 ˃ 3.84, then rejected , so there is a significant difference, and the results of survival estimation on the first day of male survival opportunities of 0.9931 (99.31%) are greater than women, namely 0.9919 (99. 19%), so that male patients recover longer than female patients; then the result of the Age-based Log-rank test is 2.44 ˂ 3.84, there is no rejection , so there are no significant differences, and the results of survival estimation on the first day of survival opportunities for patients aged  years is 0. 992 (99.2%) is greater than the patient aged  years is 0.986 (98.6%), so that patients aged  years recover faster than patients aged  years; and last Log-Rank results for comorbid and non-comorbid is 27.21 ˃ 3.84, there are rejections , so there is a significant difference, and the results of survival estimation on the first day the survival chance of comorbid patients is 0.9961 (99.61%) greater than that of non-comorbid patients which is 0.9937 (99.37%), so that non-comorbid patients recover faster than comorbid patients.

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