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All Journal AlphaMath: Journal of Mathematics Education Jurnal Ilmiah Profesi Pendidikan Euler : Jurnal Ilmiah Matematika, Sains dan Teknologi
Winarno Winarno
Universitas Islam Negeri Salatiga
Computer Science & IT Education Mathematics

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Relationship between Emotional Intelligence and Mathematical Problem Solving Ability Yety Yunaeti Suryani; Supami Wihardjanti; Winarno Winarno; Muhammad Istiqlal
AlphaMath : Journal of Mathematics Education Alphamath: Vol. 9, No. 1, May 2023
Publisher : Department of Mathematics Education, Universitas Muhammadiyah Purwokerto, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/alphamath.v9i1.14166

Abstract

This study aimed to describe the level of students 'emotional intelligence, the level of students' mathematical problem-solving abilities, and the relationship between emotional intelligence and mathematical problem-solving skills. This research is a quantitative study using the ex post facto correlation method. The research sample was students of class VIII SMP Negeri 3 Teras Boyolali in the 2018/2019 academic year, and the sample was determined using the purposive sampling technique. Data were collected using questionnaires, tests, and documentation. All data were analyzed using descriptive analysis, research data using the product moment formula, and hypothesis testing. The results of the study show that: (1) The emotional intelligence of students with low emotional intelligence is 28.1%, 37.5% moderate, and 34.4% high, Mathematical problem-solving abilities of students with low math problem-solving abilities with a percentage of 29.7%, moderate 35.9%, and high 34.4%, (3) After the data were analyzed using the product moment correlation technique, the correlation coefficient value was obtained from 0.586 and then compared table r with the number. A significant level of 1%, namely 0.2075. It is proven that the results count tabel r r  in this study are substantial, in the sense of the hypothesis which states, "There is a significant relationship between emotional intelligence and the ability to solve math problems in class VIII students of SMP Negeri 3 District Teras Boyolali Regency".
The Hidden Pearl Storybook: Bullying Intervention Strategy Nuril Septyani; Rahma Aulia Nurcholis; Banu Setyo Adi; Winarno Winarno
Jurnal Ilmiah Profesi Pendidikan Vol. 10 No. 4 (2025): November
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jipp.v10i4.3906

Abstract

Bullying merupakan permasalahan serius dalam dunia pendidikan yang telah merambah hingga tingkat sekolah dasar dan berdampak negatif tidak hanya pada korban, tetapi juga pada pelaku dan saksi. Masalah ini memerlukan intervensi yang efektif dan sesuai dengan karakteristik perkembangan siswa sekolah dasar. Penelitian ini bertujuan untuk menganalisis efektivitas penggunaan buku cerita "Mutiara Yang Terpendam" sebagai alat intervensi anti-bullying pada siswa sekolah dasar. Penelitian menggunakan pendekatan pra-eksperimental dengan desain pretest-posttest satu kelompok yang melibatkan 28 siswa kelas II. Data mengenai sikap anti-bullying dikumpulkan melalui observasi, wawancara, dokumentasi, serta pretest dan posttest. Hasil analisis menunjukkan peningkatan signifikan rata-rata skor posttest sebesar 12,5 poin (34,8%) dibandingkan dengan pretest, dengan nilai t = -13.132 (p < 0,001). Nilai effect size pada Cohen's d mencapai 1,85, mengindikasikan bahwa intervensi berbasis literasi ini sangat efektif dalam mengubah sikap siswa terhadap bullying. Intervensi menggunakan buku cerita "Mutiara Yang Terpendam" terbukti efektif sebagai strategi anti-bullying di sekolah dasar. Proses membaca sebagai interaksi dinamis antara pembaca dan teks berkontribusi pada peningkatan pemahaman dan perubahan sikap siswa. Hasil penelitian ini memberikan implikasi penting bagi pengembangan intervensi berbasis literasi sebagai alternatif strategis dalam memitigasi perilaku bullying di lingkungan sekolah dasar.
Optimasi Biaya Distribusi Biji Kopi: Perbandingan Metode Northwest Corner Method, Least Cost Method, Vogel's Approximation Method, dan Modified Distribution Method Zahrotul Janah; Siti Nur Afifatun; Muhammad Asadi Almaruf; Winarno Winarno
Euler : Jurnal Ilmiah Matematika, Sains dan Teknologi Volume 14 Issue 2 August 2026
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/euler.v14i2.40357

Abstract

This study aims to analyze transportation costs in distributing Mr. Rusman's coffee beans from Candiroto and Bejen plantations to five destination stores: Seleksi, Muneng, Plosogaden, Lancar, and Berkah, using the Northwest Corner Method (NWC), Least Cost Method (LC), Vogel's Approximation Method (VAM), and Modified Distribution Method (MODI). Data were obtained through direct interviews with plantation owners regarding capacity, demand, and distribution costs. The results showed that the NWC resulted in a cost of Rp610,000, the LC Rp538,500, and the VAM Rp524,500. Testing using the MODI showed that the NWC and LC methods were not optimal and required iterations for improvement, while the VAM method was immediately optimal. After optimization, the minimum cost was obtained at Rp524,500. The calculation results also used POM QM for Windows V5 software and showed similar results to manual calculations. 
Co-Authors Banu Setyo Adi Muhammad Asadi Almaruf Muhammad Istiqlal Nuril Septyani Rahma Aulia Nurcholis Siti Nur Afifatun Supami Wihardjanti Yety Yunaeti Suryani Zahrotul Janah