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All Journal JagoMIPA: Jurnal Pendidikan Matematika dan IPA Jurnal Tadris Matematika (JTMT) Jurnal Pendidikan MIPA
Azmidar Azmidar, Azmidar
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Biochemistry, Genetics & Molecular Biology Chemistry Education Mathematics Physics Other

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Application of Modified Ghadle-Munot Method in Applied Mathematics Learning through Chocolate Production Case Study at CV. Putra Mataram Sedalu Firdaus, Ahmad; Busrah, Zulfiqar; Azmidar, Azmidar; Buhaerah, Buhaerah
JTMT: Journal Tadris Matematika Vol 6 No 1 (2025): Volume 6, Issue 1, June 2025
Publisher : Universitas Islam Ahmad Dahlan (UIAD)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47435/jtmt.v6i1.4139

Abstract

Applied mathematics plays an important role in solving real-world problems, including in the agricultural product processing industry. This study aims to apply the Modified Ghadle-Munot method to solve employee assignment problems in a private company operating in chocolate production and to connect its implementation with applied mathematics learning. The core issue addressed is the imbalance between the number of employees and the number of production stages, which creates an unbalanced assignment problem. This study uses an applied quantitative research approach with assignment optimization as the main variable. Data were collected through interviews and documentation related to the production process and employee task distribution. The results showed that the Modified Ghadle-Munot method was able to reduce the total work time from an initial average of 970 minutes to 660 minutes. The application of this algorithm not only improves operational efficiency but also carries educational value. It can serve as a contextual case study in teaching applied mathematics, particularly in linear programming and optimization. Therefore, this research contributes both to practical problem-solving in small-scale industry settings and to strengthening real-world, problem-based learning in mathematics education.
Using the Concrete-Representational-Abstract Approach to Enhance Students’ Interest in Mathematics Refers to the Primer Mathematical Skills Azmidar, Azmidar; Malasari, Putri Nur
Jurnal Pendidikan MIPA Vol 23, No 3 (2022): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

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Abstract

Students’ interest in mathematics is very influential to the achievement of learning outcomes, so the teacher is recommended to utilize the precise approach to enhance students’ mathematics interest. This study aims to analyze the achievement of mathematics students’ interest using the Concrete-Representation-Abstract (CRA) approach refers to primer mathematical skills. The study uses a quasi-experimental and a post-test design. The students in grade VII are the population in this study and use two groups were purposely selected, an experimental group that receives CRA and a control group that gets common learning (CL). The result shows that the mathematics interest’ of students who received the CRA approach is higher than students who only received CL. Refers to the indicator of students’ mathematics interest, the interaction with a teacher or friend to discuss the material scale gets the high score, and the lower score at the indicator diligently solving the assignment.Keywords: The Concrete-Representation-Abstract approach, mathematics interest.DOI: http://dx.doi.org/10.23960/jpmipa/v23i3.pp894-903
Enhancing Students’ Mathematical Representation Ability Using the Concrete-Pictorial-Abstract Approach Azmidar, Azmidar; Darhim, Darhim; Dahlan, Jarnawi Afghani
Jurnal Pendidikan MIPA Vol 22, No 1 (2021): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

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Abstract

Mathematical representation ability is basic for others’ mathematical ability, such as understanding ability, communication ability, reasoning ability, and problem-solving ability. The purpose of this research was to analyze the enhance students’ mathematics representation ability using the Concrete-Pictorial-Abstract Approach in the group (CPA-G) based on prior mathematical ability. The research method used the quasi-experimental with pre-response and post-response design. The population of this research was students grade VII. This research uses two classes which selected purposely, an experimental group that receives CPA-G and a control group that received regular learning (RL). Prior mathematical ability and mathematical representation ability tests were used as an instrument in this research. The result shows that the mathematical representation ability of students in high and middle of prior mathematical ability category, who received CPA-G higher than students who only received RL. This approach can enhance students’ mathematical representation ability, especially on the visual and symbolic representation. Keywords: The Concrete-Pictorial-Abstract approach in the group, mathematical representation ability, quasi experimental research  DOI: http://dx.doi.org/10.23960/jpmipa/v22i1.pp67-76
Eksplorasi Etnomatematika pada Kain Tenun Rongkong Motif Rundun Lolo Azmidar, Azmidar; Busrah, Zulfiqar; Nurwahida, Nurwahida
JagoMIPA: Jurnal Pendidikan Matematika dan IPA Vol. 6 No. 1 (2026): JagoMIPA: Jurnal Pendidikan Matematika dan IPA
Publisher : Yayasan Pendidikan Bima Berilmu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53299/jagomipa.v6i1.2980

Abstract

Indonesia terkenal dengan beragam kebudayaan yang dimiliki. Salah satu dari kebudayaan tersebut adalah kain tenun yang tersebar di beberapa wilayah di Indonesia, termasuk kain tenun rongkong yang berasal dari daerah pegunungan di Kabupaten Luwu Utara Provinsi Sulawesi-Selatan. Penelitian ini bertujuan untuk mengeksplorasi etnomatematika yang ada pada kain tenun Rongkong khususnya pada motif Rundun Lolo. Penelitian ini merupakan penelitian kualitatif dengan pendekatan etnografi. Subjek pada penelitian ini adalah masyarakat Rongkong yang masih menekuni usaha tenun kain Rongkong sebanyak dua orang. Pengumpulan data dilakukan melalui studi pustaka, observasi, wawancara, dan dokumentasi yang selanjutnya dianalisis dengan teknik reduksi data, penyajian data dan menarik kesimpulan. Hasil penelitian menunjukkan bahwa: 1) etnomatematika dalam proses pembuatan kain tenun Rongkong motif Rundun Lolo adalah geometri bidang datar yang berupa segitiga, belah ketupat dan jajar genjang 2) etnomatematika pada kain tenun Rongkong motif Rundun Lolo adalah transformasi yang terdiri atas pencerminan atau refleksi dan geseran atau dilatasi 3) etnomatematika pada proses pembuatan kain tenun Rongkong motif Rundun Lolo adalah skala dan perbandingan. Implikasi dari penelitian ini adalah etnomatematika yang ditemukan pada motif kain tenun Rundun Lolo dapat dijadikan sebagai sumber belajar matematika di sekolah contohnya sebagai media pembelajaran matematika berbasis etnomatematika pada materi geometri bidang datar maupun geometri transformasi.
Co-Authors Ahmad Firdaus, Ahmad Buhaerah Buhaerah, Buhaerah Busrah, Zulfiqar Dahlan, Jarnawi Afghani Darhim Darhim Malasari, Putri Nur Nurwahida Nurwahida, Nurwahida