Rangkiang Mathematics Journal
Rangkiang Mathematics Journal (RMJ) is a prestigious vision journal which focuses on publishing research, and advance literature study in mathematics and mathematics education. The scope of this journal includes: mathematics teacher profesionalisme, Realistic Mathematics Education, Design/Development Research in Mathematics Education, High Order Thinking Skills in Mathematics, STEM (Science Technology Engineering Mathematics) Education, Classroom Action Research, Technology in Mathematics Learning, Etnomatematics, Lesson Study for Learning Community, Assessment in mathematics learning, Psychological Theories in Mathematics Education, Mathematical Physics, Mathematical Analysis, Mathematical Biology, Mathematical Industry and Finance, Stochastic, Modeling and Simulations, Operational Research, Algebra, Modern Graph Theory together with Applications to Other Fields of Mathematics, Computer Science, Statistics, and Combinatorics.
Articles
53 Documents
Validity of Application-Assisted Project-Based Learning Liveworksheet on Linear Program Material
Endah Oktaviana;
Zulfitri Aima;
Ramadoni
Rangkiang Mathematics Journal Vol. 2 No. 2 (2023): Rangkiang Mathematics Journal
Publisher : Department of Mathematics, Universitas Negeri Padang (UNP)
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DOI: 10.24036/rmj.v2i2.32
The lack of use of technology and communication in the process of learning mathematics and the teaching materials used are still not able to guide students in the learning process. The purpose of this research is to develop an Application-Assisted Project Based Learning (PjBL)-based electronic live worksheet (E-LKPD) with the assistance of a live worksheet application on valid Class X Linear Program material. This type of research is the development of the Plomp model. The instruments used were interview guidelines and questionnaires. The technique of analyzing the data is qualitative and quantitative analysis. The results of the research are the assessments made by mathematicians, namely 92.1% (very valid). The results of the assessment carried out by technology experts were 94.4% (very valid). It is concluded that E-LKPD Based on Project Based Learning Assisted by Liveworksheet Application is very valid and feasible for use by teachers and students.
Material Teach Differentiated Style Study for Increase Mathematical Problem Solving Abilities
Pipin Sumarni;
Yerizon;
Erni Suharti;
Anny Sovia
Rangkiang Mathematics Journal Vol. 2 No. 2 (2023): Rangkiang Mathematics Journal
Publisher : Department of Mathematics, Universitas Negeri Padang (UNP)
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DOI: 10.24036/rmj.v2i2.38
This research was carried out with the aim of finding out the problems found in tenth grade, or what is called Phase E. This research is expected to be able to overcome the problems of students who experience problems in solving problems by looking at students' learning styles. The type of research used in this research is a classroom action research method with a qualitative approach. The instruments used in this research were a learning style questionnaire, observation sheets to observe interactions between teachers and students, as well as interactions between students during the mathematics learning process. This research was conducted in phase E. From the research conducted, it was found that the use of teaching materials with differentiated learning styles can improve students' problem-solving abilities. It can be seen because there is an increase from the initial diagnostic student scores to the second cycle.
Seaqir Covid -19 Mathematical Modell
Fira Adila, Fira Adila;
Arnellis
Rangkiang Mathematics Journal Vol. 2 No. 2 (2023): Rangkiang Mathematics Journal
Publisher : Department of Mathematics, Universitas Negeri Padang (UNP)
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DOI: 10.24036/rmj.v2i2.40
This research discusses the mathematical model of Covid-19 disease. The model formed consists of 6 components, namely Susceptible (S), Exposed (E), Asymptotically Infected (A), Quarantined (Q), Symptomatic Infected (S), and Recovered (R). This research aims to determine the local stability analysis of the model formed. Apart from that, the R0 value of the model is also looked for. The model stability analysis was carried out in disease-free and endemic settings by showing asymptotic stability. Based on the analysis results obtained. The primary reproduction number for disease-free and endemic simulations is greater than 1. The interpretation of the COVID-19 mathematical model from the stability analysis shows that COVID-19 will still exist for a specific time and will not disappear.
Difficulty Learning Mathematics Material for Multiplication Counting Operations in Elementary School
Muthma'innah, M
Rangkiang Mathematics Journal Vol. 2 No. 2 (2023): Rangkiang Mathematics Journal
Publisher : Department of Mathematics, Universitas Negeri Padang (UNP)
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DOI: 10.24036/rmj.v2i2.42
Class III elementary school students are expected to be able to do multiplication sequentially both during the multiplication process and the accuracy of the results. However, students still do not fully understand the multiplication calculation operation, especially in a sequential way. This research aims to: 1) analyze the difficulties of learning mathematics in the Multiplication Calculation Operation material for class III students; 2) describe the factors causing these difficulties; 3) describe the efforts made to overcome these difficulties. This research includes qualitative research. The research results obtained: 1) Difficulty learning mathematical multiplication calculation operations experienced by class III Elementary School, namely: Difficulty understanding symbols, place value in multiplication, incorrect processes in multiplication, and calculations in multiplication; 2) Internal factors dominate the factors causing these difficulties; 3) Efforts made to overcome these difficulties are: the need to provide supporting training, guidance from teachers. This can be an essential note for teachers in mathematics and multiplication calculation operations. The impact of this research is as a consideration for mathematics teachers in teaching number multiplication material, as well as knowing more about the characteristics of students in solving number multiplication problems.
Mathematical Model of Vertical Transmission of Hepatitis B with the Effect of Treatment and Vaccination
Latifah, Meilina Latifah;
Helma
Rangkiang Mathematics Journal Vol. 2 No. 2 (2023): Rangkiang Mathematics Journal
Publisher : Department of Mathematics, Universitas Negeri Padang (UNP)
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DOI: 10.24036/rmj.v2i2.43
Hepatitis B is a type of liver inflammation caused by infection with the Hepatitis B virus (HBV). Vertical transmissions can transmit hepatitis B. The precautions that can be taken to avoid vertical transmission of Hepatitis B are curable with treatment and vaccination. The goal of this research is to learn the mathematical model of Hepatitis B vertical transmission by observing the effects of treatment and vaccination, stability analysis, and interpreting the analysis results from the model. This research is essential. Points of equilibrium were discovered based on the model analysis. Through treatment and vaccination, vertical transmission of Hepatitis B will not become epidemic, according to the conclusions of this mathematical model's investigations. Meanwhile, as more and more effective contacts between infected individuals and vulnerable individuals occur and the average number of sexual partners per infected adult female, the vertical transmissions of Hepatitis B will grow.
A Literature Study of Mathematical Anxiety Against Mathematics Learning and Explore the Student Mathematical Anxiety
Mayani, Dwita Elfri
Rangkiang Mathematics Journal Vol. 3 No. 1 (2024): Rangkiang Mathematics Journal
Publisher : Department of Mathematics, Universitas Negeri Padang (UNP)
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DOI: 10.24036/rmj.v3i1.44
The purpose of the literature review in this study was to thoroughly evaluate and assess the theories, signs, effects, and initiatives used to help students overcome their math anxieties. The type of research used is a literature study. This study used the systematic literature review (SLR) method. The data collection technique used is the inclusion criterion, and the data analysis technique used is exposition. Based on the findings of several studies, it is clear that mathematical anxiety negatively impacts students' learning outcomes, learning processes, and mathematical abilities, including their ability to solve math problems and other mathematical abilities. Of course, based on these studies, there is a need for efforts to overcome mathematics anxiety, both carried out by teachers and students so that the mathematics learning process can run smoothly. But not all math anxieties produce negativity. Some articles also mention that math anxiety can improve students' mathematical achievement.
Multiplication Wheel Learning Media Design in Mathematics Learning Material for Multiplication of Numbers in Elementary Schools
Muthma'innah, M
Rangkiang Mathematics Journal Vol. 3 No. 1 (2024): Rangkiang Mathematics Journal
Publisher : Department of Mathematics, Universitas Negeri Padang (UNP)
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DOI: 10.24036/rmj.v3i1.45
The mathematical abilities of second-grade elementary school students in the multiplication operation material are still relatively low. Seeing this condition, teachers must pay attention to teaching students variations in the use of learning media that invite students to play while learning so that teachers can instil the mindset that multiplication is very easy. One learning media that can be used is the multiplication wheel learning media. This research aims to describe the design of multiplication wheel learning media on number multiplication material. This research is library research. Using the multiplication wheel learning media in Mathematics subjects in class II SD/MI can improve student learning outcomes because learning activities are carried out by playing while thinking. With learning media like this, students will not get bored and bored when participating in learning activities. The multiplication wheel learning media is also very easy for lower-grade students to use. This multiplication wheel learning media is three-dimensional. Because the media does not move and does not make sound, in learning mathematics, especially in improving material, the teacher must be able to instil the mindset that addiction is very easy. Using the learning media of the accretion wheel in Mathematics in class II SD/MI can improve student learning outcomes because learning activities are carried out by playing while thinking. The existence of learning media like this will make students not bored and not bored in participating in learning activities. Improved learning media is now also very easy for low-grade students to use. This accretion wheel learning media includes three-dimensional learning media because the media does not move on its own and does not make sound.
The Exploration of Mathematics on Batik Trusmi
Rahmawati, Dwi;
Noto, Muchamad Subali;
Subroto, Toto;
Amiruddin, Mohd. Hasril;
Hafizatunnisa, Hafizatunnisa
Rangkiang Mathematics Journal Vol. 3 No. 1 (2024): Rangkiang Mathematics Journal
Publisher : Department of Mathematics, Universitas Negeri Padang (UNP)
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DOI: 10.24036/rmj.v3i1.48
The purpose of the literature review in this study was to thoroughly evaluate and assess the theories, signs, effects, and initiatives used to help students overcome their math anxieties. The type of research used is a literature study. This study used the systematic literature review (SLR) method. The data collection technique used is the inclusion criterion, and the data analysis technique used is exposition. Based on the findings of several studies, it is clear that mathematical anxiety negatively impacts students' learning outcomes, learning processes, and mathematical abilities, including their ability to solve math problems and other mathematical abilities. Of course, based on these studies, there is a need for efforts to overcome mathematics anxiety, both carried out by teachers and students so that the mathematics learning process can run smoothly. But not all math anxieties produce negativity. Some articles also mention that math anxiety can improve students' mathematical achievement.
Factors Affecting the Participation Rate of Women in the Labor Force in Lima Puluh Kota Regency Using Probit Regression Analysis
Mutiya Zulfa;
Helma
Rangkiang Mathematics Journal Vol. 3 No. 1 (2024): Rangkiang Mathematics Journal
Publisher : Department of Mathematics, Universitas Negeri Padang (UNP)
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DOI: 10.24036/rmj.v3i1.49
Labor currently plays a very important role in a country's economy. In the labour sector, women still experience discrimination, which causes the Labor Force Participation Rate (LFPR) of women to remain low compared to men. The LFPR of men in Kabupaten Lima Puluh Kota is higher than the LFPR of women. In 2022, the female LFPR was 63.75%, meaning that of the total labour force, around 63.75% of them were working or looking for work. This study aims to determine the factors that influence women's participation in the labour force in Kabupaten Lima Puluh Kota. This research is applied using the probit regression analysis method. The data used is secondary data, which is microdata from the National Labor Force Survey (SAKERNAS). Based on the results of the analysis, the factors that influence the level of women's participation in the labour force in Kabupaten Lima Puluh Kota in 2022 are education level, age, job training status, and status as head of household.
Mode Selection Model Based on Travel Time and Price of Goods with Regression Analysis Model
Yessy Yusnita;
Lita Lovia
Rangkiang Mathematics Journal Vol. 3 No. 1 (2024): Rangkiang Mathematics Journal
Publisher : Department of Mathematics, Universitas Negeri Padang (UNP)
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DOI: 10.24036/rmj.v3i1.50
Padang City Market is one of the shopping centres in Padang City, which is located in the West Padang District. The shopping centre presents a place for people to buy kitchen supplies or basic daily needs. This makes the area quite attractive for community travel. This research was conducted on 400 respondents who visited Padang City Market. In this study, the choice of mode is represented by the Y variable and is categorized into private vehicles, public transportation, rental vehicles, walking, and others. The travel time variable represents X1. The variable price of goods represents X2. This study aims to assess the level of correlation between the choice of mode (Y) on the variable travel time (X1) and the variable price of goods (X2). Furthermore, the mode selection (Y) was modeled based on the variables X1 and X2 using linear regression analysis with SPSS tools. The results of the analysis show a strong relationship between the Y variable and the X1 and X2 variables. The best linear regression model produced is Y = 0,010 + 0,76X1 + 0,029X2 with a value of R = 0,437. This means that the closer the travel time is and the lower the price of goods, the more the intensity of motorcycle mode selection to Pasar Raya Padang increases.