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All Journal JURNAL MathEdu (Mathematic Education Journal) Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Jurnal Hasil Pengabdian Masyarakat (JURIBMAS) JIEP: Jurnal Ilmu Ekonomi dan Pembangunan
yulia pratiwi siregar
Universitas Aufa Royhan
Biochemistry, Genetics & Molecular Biology Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Mathematics Physics Social Sciences Other

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EFEKTIVITAS PENGGUNAAN MODEL PEMBELAJARAN AUDITORY, INTELLECTUALLY, REPETITION (AIR) TERHADAP KEMAMPUAN PEMAHAMAN KONSEP MATEMATIS SISWA Hotmaida Lestari Siregar; Yulia Pratiwi Siregar; Lukman Hakim Siregar
JURNAL MathEdu (Mathematic Education Journal) Vol 3 No 3 (2020): JURNAL MathEdu (Mathematic Education Journal) Vol. 3 No. 3 November 2020
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

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Abstract

The aim of this study is to describe the effectiveness of using flipped classroom learning model on the ability to understand students' mathematical concepts on the topic Phytagoras theorem at the eighth grade students of SMP Negeri 8 Padangsidimpuan. The research was conducted by applying experimental method (one group pretest post test design) with 25 students as the sample and they were taken by using cluster sampling technique from 226 students. Observation and test were used in collecting the data. Based on descriptive analysis, it was found: (a) the average of using flipped classroom was 3.80 (good category) and (b) the average of the ability to understand students' mathematical concepts on the topic Phytagoras theorem before using AIR learning model was 68.00 (enough category) and after using AIR learning model was 87.00 (very good category). Furthermore, based on inferential statistic by using pair sample ttest, (SPSS version 22), the result showed the significant value was less than 0.05 (0.000<0.05). It means, using AIR was effective used on the ability to understand students' mathematical concepts on the topic Phytagoras theorem at the eighth grade students of SMP Negeri 8 Padangsidimpuan.
Determinan Multidimensi Pembangunan Ekonomi: Analisis Simultan Modal Manusia, Sumber Daya Alam, dan Kelembagaan Enni Sari Siregar; Yulia Pratiwi Siregar; Nurintan Siregar
JIEP: Jurnal Ilmu Ekonomi dan Pembangunan Vol. 9 No. 1 (2026)
Publisher : PPJP ULM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jiep.v9i1.2966

Abstract

This study aims to analyze the influence of education, health, mineral resources, forest resources, and institutional quality on economic development in North Sumatra. The data were analyzed using multiple linear regression to determine the impact of each independent variable on the dependent variable. The findings reveal that education, health, mineral resources, and institutional quality have a significant impact on economic development. In contrast, forest resources do not have a significant influence. This suggests that economic development is more heavily driven by human capital quality and institutional frameworks rather than a reliance on forest resources. Consequently, enhancing the quality of education and health, optimizing mineral resource management, and strengthening institutions are critical factors in accelerating regional economic development.
Learning Economic Mathematics Through the Implementation of Geogebra Learning Media: An Effectiveness Study Yulia Pratiwi Siregar; Enni Sari Siregar
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol. 14 No. 1: January 2026
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/j-ps.v14i1.19257

Abstract

Formal education plays a crucial role in creating a high-quality workforce, and continuous innovation in the learning process is crucial, particularly through the integration of technology. This study aims to examine the effectiveness of using the GeoGebra application in improving student learning outcomes in mathematical economics, specifically regarding demand, supply, and market equilibrium functions. The method used was a quasi-experimental design with a randomized control group design. This study compared two classes: an experimental class using GeoGebra and a control class using conventional learning. The analysis showed that the use of GeoGebra was effective in improving students' conceptual understanding, particularly in the aspects of procedural fluency and graphical understanding, with a higher average score in the experimental group (88.20) compared to the control group (85.63). Although the statistical significance value (p > 0.05) did not indicate a statistically significant difference, these results still indicate that GeoGebra contributes to improved conceptual understanding. Furthermore, the analysis of the role of the moderating variable 'initial mathematical ability' explains that students' initial ability has an influence on learning outcomes but does not clearly explain the theory underlying the use of this variable. This study provides insight into the importance of using GeoGebra to improve learning outcomes in the context of mathematical economics learning at the tertiary level.
Pemberdayaan Masyarakat Melalui Pengolahan Pakaian Donasi Tidak Terpakai Menjadi Produk Bernilai Ekonomi Khairunnisa Butar-Butar; Yulia Pratiwi Siregar; Nurlaila; Halman Paris Ritonga
JURIBMAS : Jurnal Hasil Pengabdian Masyarakat Vol 5 No 1 (2026): Juli 2026
Publisher : LKP KARYA PRIMA KURSUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62712/juribmas.v5i1.1280

Abstract

Program pengabdian masyarakat ini bertujuan meningkatkan ketahanan ekonomi masyarakat pasca bencana melalui pengolahan pakaian donasi tidak terpakai menjadi produk bernilai ekonomi di Desa Batuhula, Kabupaten Tapanuli Selatan. Permasalahan utama mitra adalah menumpuknya pakaian donasi yang tidak layak pakai, rendahnya keterampilan pengolahan produk kreatif, keterbatasan pemasaran, serta belum terbentuknya sistem usaha berbasis komunitas. Kegiatan dilaksanakan pada kelompok PKK Setia menggunakan metode partisipatif melalui tahapan sosialisasi, pelatihan, penerapan teknologi sederhana, pendampingan, dan evaluasi keberlanjutan program. Teknologi yang diterapkan berupa teknik upcycling kain, penggunaan mesin jahit, pengembangan desain produk, serta pemasaran digital berbasis media sosial. Hasil kegiatan menunjukkan adanya peningkatan keterampilan anggota dari 20% menjadi 70% dalam pengoperasian mesin jahit dan produksi mandiri. Produk yang dihasilkan meningkat dari satu jenis menjadi enam jenis produk rumah tangga, yaitu tote bag, pouch, karpet serbaguna, alas meja, bantal kursi, dan storage multifungsi. Tingkat partisipasi anggota mencapai 95% dengan total produksi ±30 item. Selain itu, terbentuk kelompok usaha “Batuhula Creative” sebagai wadah keberlanjutan program. Kegiatan ini menunjukkan bahwa limbah tekstil pasca bencana dapat diolah menjadi produk kreatif yang mampu meningkatkan keterampilan, kemandirian, dan ekonomi masyarakat secara berkelanjutan.
Co-Authors Enni Sari Siregar Halman Paris Ritonga Hotmaida Lestari Siregar Khairunnisa Butar-Butar Lukman Hakim Siregar Nurintan Siregar nurlaila