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All Journal Al-Muaddib : Jurnal Ilmu-Ilmu Sosial & Keislaman JPM : Jurnal Pendidikan Matematika
Nazwa, Putri
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Education Mathematics Social Sciences Other

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PENGARUH PERSONAL SELLING TERHADAP MINAT BELI PRODUK HALAL NETWORK INTERNATIONAL PADA BUSINESS CENTER MEDAN 1 Nazwa, Putri; Edi, Sarwo
Al-Muaddib : Jurnal Ilmu-Ilmu Sosial & Keislaman Vol 8, No 1 (2023): Al-Muaddib : Jurnal Ilmu-Ilmu Sosial & Keislaman
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/muaddib.v8i1.31-38

Abstract

Penelitian ini guna mengetahui pengaruh Personal Selling terhadap minat beli produk halal network international (HNI ) pada business center medan 1. Penelitian ini ialah penelitian  kuantitatif di metode kuesioner diisi oleh responden. Di penelitian ini memakai uji validitas juga reabilitas, uji normalitas, uji hipotesis melalui uji t serta analisis koefisien determinasi (R2) di pengolahan data memakai  SPSS. Berdasarkan hasil penelitian diperoleh persamaan regresi Y – 4,215 + 1,191 x. Hasil analisis diatas dapat disimpulkan bahwasanya variabel personal selling (x) berpengaruh kepada variabel minat beli(Y) yang bernilai positif, kemudian dengan indeks determinasi sebesar 57,3% ini berarti berpengaruh signifikan terhadap minat beli produk halal network international (HNI) pad Business center medan 1, dan sebesar 42,7% dipengaruhi variabel lain yang tidak diteliti di penelitian ini.
Improving Understanding of Mathematical Concepts Through Contextual Teaching and Learning (CTL): A Case Study at Junior High School 14 Pematangsiantar Nazwa, Putri; Apriani, Dian Elita; Siburian, Gusti Magdalena Br.; Situmorang, Romaulika; Simamora, Septri Amelia; Rambe, Yarti Melvina; Aprilia , Yesnita; Siregar , Budi Halomoan
Jurnal Pendidikan Matematika (JPM) Vol 11 No 1 (2025): Jurnal Pendidikan Matematika (JPM)
Publisher : Department of Mathematics Education, Faculty of Teacher Training and Education, Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/jpm.v11i1.23382

Abstract

Mathematics learning at the secondary school level plays an important role in fostering a deep understanding of ideas among students. The main purpose of this research is to see how effectively SMP Negeri 14 Pematangsiantar’s students understand mathematical concepts through CTL learning. This research applies a quantitative approach with a true experimental design. The study involved 30 seventh-grade students, divided into an experimental group (15 students of class VII-1) and a control group (15 students of class VII-3). The experimental group received learning with the CTL approach, which incorporated real-life problem-solving activities, discussions, and hands-on contextual exercises related to fractions. Meanwhile, the control group was taught using the expository method. Both groups were given a pre-test and post-test to measure the improvement of learning outcomes. The control group had an average post-test score of 54.00, while the experimental group had a significantly higher score of 90.33 (p < 0.001). Data were analyzed using an independent sample t-test, which confirmed that the difference in post-test scores between the two groups was statistically significant. The findings indicated that the CTL approach significantly improved students' conceptual understanding. The practical implications of this study suggest that integrating contextual learning strategies into mathematics instruction can enhance students’ ability to comprehend abstract concepts, particularly fractions. The findings of this study support the CTL approach as an effective and recommended instructional strategy for improving students' conceptual understanding of fractions. Implementing this approach can contribute to more engaging and meaningful mathematics education at the secondary school level.
Co-Authors Apriani, Dian Elita Aprilia , Yesnita Budi Halomoan Siregar Rambe, Yarti Melvina Sarwo Edi, Sarwo Siburian, Gusti Magdalena Br. Simamora, Septri Amelia Situmorang, Romaulika