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All Journal MUST: Journal of Mathematics Education, Science and Technology MATH-EDU: Jurnal Ilmu Pendidikan Matematika
Gunawan
Universitas Negeri Yogyakarta
Computer Science & IT Education Mathematics

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Aplikasi Fuzzy Logic untuk Pengambilan Keputusan Pembelian Kendaraan Mobil Menggunakan Metode Mamdani Nina Andriani; Gunawan; Yosua Tumanggor; Firza Eka Febrianto
MUST: Journal of Mathematics Education, Science and Technology Vol 10 No 1 (2025): JULY
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/must.v10i1.25646

Abstract

Vehicles have now become an essential basic need for society. Cars are one of the transportation tools that can be chosen for activities because they can accommodate more than one passenger and offer comfort while driving, eliminating concerns about bad weather during outdoor activities. When purchasing a car, consumers are faced with numerous criteria that influence the selection of the car they want, which makes it difficult for consumers to choose the right car. Several car specifications that consumers consider include the car's weight, passenger capacity, engine size, maximum power, and price. This study discusses the process of recommending the most suitable and needed cars for consumers. By using the fuzzy Tahani method, the processed car data will generate outputs in the form of recommended cars for consumers. This research is expected to assist prospective car buyers in determining the car that best matches their chosen criteria.
Numeracy Skills and Mathematical Self-Concept: Case Study of Students in AKM-Type Problems Gunawan; Heri Retnawati
MATH-EDU: Jurnal Ilmu Pendidikan Matematika Vol. 11 No. 2 (2026): MATH-EDU: Jurnal Ilmu Pendidikan Matematika
Publisher : Program Studi Pendidikan Matematika, Fakultas Ilmu Pendidikan, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jipm.v11i2.11195

Abstract

This study aims to determine the relationship between numeracy skills and mathematical self-concept. The research was conducted using a correlational method with a quantitative approach. The subjects of this study were students of classes VIII-D and VIII-F at a junior high school in Magelang City. Data collection techniques included a numeracy skills test and a mathematical self-concept questionnaire. The data analysis technique simple linear regression analysis. The results showed a significant and fairly strong positive relationship between numeracy skills and mathematical self-concept, as indicated by a correlation coefficient of 0.589. Furthermore, the regression analysis showed a significance value of 0.000, which is less than , indicating that mathematical self-concept significantly and positively predicts numeracy skills. These findings highlight the importance of strengthening students’ mathematical self-concept as part of efforts to support the development of numeracy skills.
Co-Authors Firza Eka Febrianto Heri Retnawati Nina Andriani Yosua Tumanggor