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Implementasi metode eliminasi Gauss-Jordan dan dekomposisi Crout dalam memprediksi volume lalu lintas Munawaroh, Eva Lailatul; Isnarto, Isnarto
Unnes Journal of Mathematics Vol 10 No 2 (2021)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujm.v10i2.50053

Abstract

Traffic volume is the number of vehicles passing at a point on a particular road at a certain period of time. The main purpose of this study was to predict the volume of traffic on Pemuda Street Semarang City using Gauss-Jordan elimination and Crout decomposition methods and determine alternative solutions to overcome congestion. Data collection is done by traffic counting at every intersection along Pemuda Street, Imam Bonjol Sreet, and Kapten Pierre Tendean, Semarang City. The linear equation system model is formed based on the data that has been obtained and then processed using both methods to find the number of vehicles passing through. This study concluded that the volume of traffic obtained using the Gauss-Jordan elimination and Crout decomposition at each track point along Pemuda Street overall from morning to noon and evening experiencing density. From both methods show that the Gauss-Jordan elimination method is more effective and efficient. The comparison of the two methods can be seen from the many steps of completion, the number of arithmetic operations, speed, and accuracy of obtaining a solution.
Pembelajaran Matematika Berbasis Filsafat Humanis Fedi, Sebastianus; Kurnila, Valeria S.; Susanti, Vera Dewi; Hutneira, Ririn; Rochmad, Rochmad; Isnarto, Isnarto
Jurnal Pendidikan Tambusai Vol. 5 No. 3 (2021): 2021
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v5i3.2580

Abstract

Filsafat memiliki peran penting dalam pembelajaran dan praktik ilmu pengetahuan. Peran filsafat seperti kompas, penentu letak, ke mana dan bagaimana arah tindak pembelajaran dan penerapan suatu ilmu pengetahuan. Filsafat menjadi pedoman agar manusia tidak salah kaprah terhadap keberadaan suatu disiplin ilmu, muatan dan penerapannya. Sebuah ilmu pengetahuan tidak diterima dan diterapkan begitu saja. Ilmu pengetahuan tidak boleh bersifat indoktrinasi di mana manusia ‘hanya menerima tanpa mengkritisi’ apa muatannya. Kajian ini membahas tentang: (1) apa itu filsafat? (2) Apa dan bagaimana itu filsafat kemanusiaan? (3) Apa itu matematika? (4) Apa itu pendidikan yang humanis? (5) Bagaimana pembelajaran matematika berbasis filsafat humanisme?
Meta Analysis: Utilizing Problem-based Learning for Enhancing Creative Mathematical Thinking Abilities Ernita, Ernita; Mariani, Scolastika; Agoestanto, Arief; Isnarto, Isnarto; Suyitno, Amin
Prima: Jurnal Pendidikan Matematika Vol 8, No 2 (2024): PRIMA : Jurnal Pendidikan Matematika
Publisher : FKIP Universitas Muhammadiyah Tangerang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31000/prima.v8i2.10180

Abstract

The ability to think creatively in a mathematical context is essential for students in the 21st century. In a global creativity survey carried out in 2015 by the Martins Prosperity Index, Indonesia was positioned 115th among 139 countries, with a score of 0.202, included in low category. One strategy to address this issue is by nurturing students' creative thinking skills in mathematics education. One exciting option for teaching is Problem-based Learning. This study aims to reevaluate how the Problem-based Learning approach can improve students' creative thinking skills in mathematics, building on existing research findings. The research method employed is meta-analysis, which involves the following steps; (1) formulate the topic; (2) overall study design; (3) sampling; (4) data collection; and (5) data analysis. Based on the results of the study, an average effect size of 1,057 was obtained in the high category. Meanwhile, based on the t-test enhancement test, obtained t_value=17,020≥t_table=1,648. In conclusion, the average performance of classes utilizing Problem-based Learning is higher than that of classes using other models. The further research is needed regarding the application of Problem-based Learning to cube and cuboid material at junior high school level because the related research is the only research reviewed that has a medium effect size value
Profil of Students' Mathematical Problem Solving Ability with the Implementation of CRA-Adjacent Inquiry Learning In Terms of Adversity Quotient Putri, Rafika; Isnarto, Isnarto; Suyitno, Amin
Unnes Journal of Mathematics Education Research Vol 12 No 1 (2023): June 2023
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The purpose of this study was to describe the profile of students' mathematical problem-solving abilities in terms of adversity quotient. This research is qualitative research with data triangulation. The population of this study were class VIII students of SMP Negeri 13 Semarang for the 2022/2023 academic year. Determination of research subjects using purposive sampling technique, to obtain 6 subjects, namely two categories of climbers, two categories of campers, and two categories of quitters. The results of this study are students in the climbers category are able to master all stages of Polya with the NCTM indicator, namely carrying out steps to understand the problem, develop a problem solving plan, carry out problem solving, and re-check the results of the settlement, students in the campers category are able to master three of the four stages of Polya with the NCTM indicator, namely carrying out steps to understand the problem, develop a problem solving plan, and carry out problem solving, and students in the quitters category are able to master two of the four stages of Polya with the NCTM indicator, namely carrying out steps to understand the problem and develop a problem solving plan.
Enhancing self-regulated learning and critical thinking in STEM through flipped classroom models Setiyawan, Ali Akhmad; Agoestanto, Arief; Isnarto, Isnarto
Jurnal Elemen Vol 10 No 2 (2024): May
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/jel.v10i2.25322

Abstract

One of the causes of low proficiency among high school students in mathematical critical thinking is their lack of willingness to learn independently. This study investigated the mathematical critical thinking skills and self-regulated learning of high school students through the Flipped Classroom STEM approach. The research employed a sequential explanatory design, beginning with quasi-experimental pre-tests and post-tests for quantitative assessment of the learning process, followed by qualitative methods such as questionnaires, interviews, and observations for deeper analysis. Data analysis utilized quantitative techniques, including normality and homogeneity tests and hypothesis testing in SPSS, alongside qualitative methods for data reduction, data presentation, and conclusion. The findings revealed that flipped classroom learning significantly improved students' abilities in critical mathematical thinking, particularly highlighting the importance of self-regulated learning. There was a notable difference in post-test scores compared to those from traditional learning methods. Moreover, the study found that students with higher self-regulated learning skills were more effective in critical thinking, underscoring the effectiveness of the flipped classroom approach in fostering independent learning and enhancing essential thinking abilities in mathematics education.
Mathematical Representation Ability in Terms of Students’ Learning Independence in Project Based Learning Model Assisted by Google Sites Wulandari, Inayah; Isnarto, Isnarto
Unnes Journal of Mathematics Education Vol 12 No 3 (2023): Unnes Journal of Mathematics Education
Publisher : Department of Mathematics, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujme.v12i3.78881

Abstract

The purposes of this study were to analyze the quality of learning mathematics in the Project Based Learning model assisted by Google Sites on mathematical representation ability, to analyze the effect of learning independence on mathematical representation ability, and to describe the mathematical representation ability in terms of learning independence in the Project Based Learning model assisted by Google Sites. The research used mixed method with sequential explanatory design. The population in this study were all grade VIII students of SMP N 22 Semarang in the 2022/2023 academic year. The sample selected in this study consisted of class VIII E as the experimental class and class VIII F as the control class. Data collection techniques used in this study were tests, questionnaires, observations, and interviews. The results of the study showed that: (1) mathematics learning with Project Based Learning model assisted by Google Sites is qualified in developing students' mathematical representation ability; (2) there is a positive effect of learning independent on mathematical representation ability in Project Based Learning model assisted by Google Sites; (3) the description of the mathematical representation ability in terms of learning independence is divided into 3 categories, namely (a) students with high learning independence are able to fulfill all indicators of mathematical representation ability; (b) students with moderate learning independence are quite able to fulfill indicators of mathematical representation ability; and (c) students with low learning independence tend to be able to fulfill indicators of mathematical representation. However, it is necessary to pay attention to students' mathematical representation abilities, one of which is that students with low learning independence should be given guidance in processing information to be able to represent problems well to facilitate better problem solving.
Application of Max-Plus Algebra for Time Optimization of Wooden Furniture Production System “Berkah Usaha” Jepara Regency Khulda, Ifrikhatul; Isnarto, Isnarto
Pattimura Proceeding Vol 5 No 1 (2024): Prosiding Konferensi Nasional matematika (KNM) XXII Tahun 2024
Publisher : Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ppcst.knmxxiiv5i1p117-124

Abstract

This research aims to provide a periodic schedule on the Berkah Usaha wood furniture production system in Jepara using Max-Plus Algebra. The data required in the research is data on the flow and processing time of each project work unit. In this research, the main focuses on the Berkah Usaha wooden furniture dining table production system whose processing stages consist of raw material preparation, measurement, wood cutting, wood smoothing, measurement of puruses and holes, table floor manufacturing, puruses and holes manufacturing, table floor smoothing, assembling, sanding, and finishing. The techniques of data collection used in this research are interviews and field observations. Then, a directed graph and model of the Berkah Usaha wood furniture production system were compiled based on the flow data, processing time for each project work unit, and the rules for applying Max-Plus Algebra to the scheduling system. Analysis of the Max-Plus Algebra model of the Berkah Usaha wooden furniture production system using the Power Algorithm with Scilab software assisted. The results of the analysis obtained the production time period of the Berkah Usaha wooden furniture for 253 minutes and the optimal time to start production on each processing unit are 0, 11, 46, 92, 115, 117, 127, 137, 155, 195, 223 time units (in minutes).
Self-investigation exercises: geometry learning strategies for prospective teacher students Hamidah, Hamidah; Zaenuri, Zaenuri; Isnarto, Isnarto; Agoestanto, Arief
Journal of Education and Learning (EduLearn) Vol 19, No 2: May 2025
Publisher : Intelektual Pustaka Media Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/edulearn.v19i2.21012

Abstract

This study's purpose was to analyse the relationship between geometric thinking skills with self-regulated learning and with students' basic geometry skills. Furthermore, analyze student errors in solving geometry problems based on their self-regulated learning to determine the optimal geometry learning environment for geometry thinking skills. The study subjects were 46 second-semester students majoring in Mathematics Education for the academic year 2021/2022 of Universitas Bina Bangsa who were selected with purposive sampling techniques. This research uses quantitative and qualitative research methods. Data were obtained from geometric thinking ability tests, basic geometry skills tests, self-regulated learning questionnaires, and interview sheets. The results showed a relationship between the ability to think geometrically and the basic geometry skills of students in solving geometry problems in terms of student self-regulated learning. It was found that students' difficulties in solving geometry problems can be overcome by creating an independent geometry learning environment. The learning process design is an independent investigation exercise involving relevance, assurance, motivation, investigation, evaluation, and satisfaction.
Level of critical thinking of junior high school students in solving mathematical problems Mellawaty, Mellawaty; Sukestiyarno, YL; Zaenuri, Zaenuri; Isnarto, Isnarto
Polyhedron International Journal in Mathematics Education Vol. 1 No. 1 (2023): pijme
Publisher : Nashir Al-Kutub Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59965/pijme.v1i1.1

Abstract

Critical thinking ability is a crucial ability in mathematics, both at the elementary, secondary, or college level. However, this critical thinking ability is still low. Therefore, the researchers want to study the problem at what level the students are doing in solving mathematical critical thinking problems. The research method used a qualitative method, with the implementation analyzing students who deal with mathematical critical thinking ability problems. The study was conducted at one of the State Junior High Schools in Kroya District, Indramayu, West Java. As a result of the study, information was obtained about students who could not solve the problems presented in mathematical critical thinking ability problems, so they did not understand which strategies should be used to solve problems that could be solved.
A reflective analysis of the Losarang-Indonesian Dayak community’s thinking culture in selecting a life partner Mellawaty, Mellawaty; Sukestiyarno, Yohanes Leonardus; Isnarto, Isnarto; Zaenuri, Zaenuri
International Journal of Evaluation and Research in Education (IJERE) Vol 14, No 2: April 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijere.v14i2.27779

Abstract

This research uses a realistic ethnographic design to examine the culture of mathematical thinking in determining the match between partners for marriage in the Losarang-Indonesian Dayak community. Data were collected through field notes, in-depth interviews, and observation. Ethnomathematics as a research genre reveals important universal elements of mathematical activity, while ethnomodelling reflects ideas and the practice of community mathematics through ethical, emic, and dialectical approaches. The findings of this research indicate that ethnomathematically, the Losarang-Indonesian Dayak community have used formal language on mathematical principles to develop a knowledge system capable of sorting, pairing, calculating, and comparing the suitability of partners based on birth. Ethnomodelling is a relevant mathematical idea and concept related to arithmetic operations, sets, relations, functions, and number comparisons. Furthermore, the implication of this research is to produce didactic situations to teach the concepts of arithmetic operations, sets, relations as well as functions, and number comparisons. The didactic situation of the customary patterns of the Losarang-Dayak community can also be presented in mathematics teaching materials based on local culture. Therefore, the successful conduction of this research can enrich the repertoire of developing school mathematics learning that focuses on local culture.
Co-Authors Adi Nur Cahyono Afit Istiandaru, Afit Agung Firmansyah Agus Wahyudin Ahmad Nurkhin Algifari Algifari, Algifari Amanoe, Zihni Amin Suyitno Ardhi Prabowo Arief Agoestanto Arif Wahyu Wirawan, Arif Wahyu Asep Purwo Yudi Utomo Asih, Kartika Sari Asih, Tri Sri Noor Astutiani, Risma Awaliyah, Fista Azka, Fullu Edy Soedjoko ernita, ernita Febrinasti, Rina Fedi, Sebastianus Fitriana, Rodliyatul Wulan Frazwanti, Yuni Hamidah . Hardi Saputro, Iwan Hardi Suyitno Hartono Hartono Hasan Mukhibad Herlambang, Satriya Herviani, Benedikta Putri Himmatul Ulya Husna, Nurya Maulida Hutneira, Ririn Irfanti, Dwi Islamy, Amilia Buana Dewi Isnaini Rosyida, Isnaini Istiqomah, Novita Ayu Iwan junaedi Karsim, Karsim Kartono , Khulda, Ifrikhatul Kristina Wijayanti Kuneni, Erna Kurnila, Valeria S. Laksono Trisnantoro Lestanti, Meilia Mira Limay Trisno Putra, Ari M. Andi Safrudin Maharani, Annisa Tetty Mahendra, Novira Rahmadian Manah, Nila Kumoro Maria Ayu Puspita Mellawaty, Mellawaty Mulyono Mulyono Munahefi, Detalia Noriza Munawaroh, Eva Lailatul Nafisah, Haifa Ngabiyanto - Ni’mah, Siti Khoirun Ningrum, Herlina Ulfa Nitasari, Ayu Nurkaromah Dwidayati, Nurkaromah Oktaviyanti, Sefti Dwi Pamungkas, Megita Dwi Pramono, Didi PUTRI, RAFIKA Putriaji Hendikawati Ratri Rahayu Rochmad - Rossi Galih Kesuma, Rossi Galih Sabani, Mas'ud Saputra, Moh. Firman Amardani Sarifuddin, Muhamad Scolastika Mariani Setiyawan, Ali Akhmad St. Budi Waluya Sugianto Sugianto Sugiarto S Sukestiyarno Sukestiyarno Supriyono Supriyono Ulmu Karimah Uus Kusdinar Vera Dewi Susanti Veronica, Rahayu Budhiati Wahyuningsih, Vebryana Walid Walid, Walid Wardono Wardono Widhiyanto, Riyadi Widiyanto, Endra Bagus Wiyanto - Wulandari, Inayah Yanitama, Arka Zaenuri Mastur Zakkia, Agustin