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Rangkiang Mathematics Journal
Published by Universitas Negeri Padang
ISSN : 27160726     EISSN : 27160734     DOI : https://doi.org/10.24036/rmj.v1i1
Core Subject : Education,
Mathematics Other
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.
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 6 Documents
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Search results for , issue "Vol. 2 No. 2 (2023): Rangkiang Mathematics Journal" : 6 Documents clear
Analysis of Students' Ability to Understand Mathematical Concepts in The Material Relations and Functions Abdulhafiz; Alfi Yunita; Lita Lovia
Rangkiang Mathematics Journal Vol. 2 No. 2 (2023): Rangkiang Mathematics Journal
Publisher : Department of Mathematics, Universitas Negeri Padang (UNP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/rmj.v2i2.21

Abstract

The role of mathematics needs serious attention, considering its benefits in everyday life. Mathematics lessons are provided starting from elementary school to tertiary institutions in order to equip students to have the ability to think logically, critically, and creatively. The low ability to understand students' mathematical concepts is due to the fact that previously, students carried out online learning, so the teaching carried out was not adequate, and many students did not do the assignments given, resulting in students not understanding mathematical concepts correctly. The purpose of this study was to describe the ability to understand mathematical concepts of class VIII.1 students of SMP Negeri 2 Tanjung Raya. The subjects of this research were class VIII.1 students of SMP Negeri 2 Tanjung Raya. The research method used is a descriptive method with a qualitative approach. The sampling technique used purposive sampling. Instruments are used to collect data in the form of tests of ability to understand the concept, interviews, and documentation. The test results were analyzed based on indicators of understanding the concept. The results of the research on academic ability related to the ability to understand concepts are high, medium, and low from the test results.
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)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/rmj.v2i2.32

Abstract

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)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/rmj.v2i2.38

Abstract

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)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/rmj.v2i2.40

Abstract

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)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/rmj.v2i2.42

Abstract

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)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/rmj.v2i2.43

Abstract

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.

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