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All Journal Jurnal Pendidikan Matematika Jurnal Infinity AKSIOMA: Jurnal Program Studi Pendidikan Matematika Jurnal Elemen Al Ishlah Jurnal Pendidikan Wikrama Parahita : Jurnal Pengabdian Masyarakat Beta: Jurnal Tadris Matematika Jurnal Ilmu Pendidikan (JIP) STKIP Kusuma Negara KAIBON ABHINAYA : JURNAL PENGABDIAN MASYARAKAT TANJAK: Journal of Education and Teaching ABDI UNISAP: Jurnal Pengabdian Kepada Masyarakat Jurnal Infinity
Ria Noviana Agus
Pendidikan Matematika, Universitas Serang Raya
Humanities Automotive Engineering Computer Science & IT Economics, Econometrics & Finance Education Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Social Sciences Other

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Pemberdayaan Ekonomi Ibu Rumah Tangga melalui Pelatihan dan Pendampingan Usaha Keripik Berbasis Potensi Lokal di Kampung Keganteran Ria Noviana Agus; Usep Sholahudin
ABDI UNISAP: Jurnal Pengabdian Kepada Masyarakat Vol. 3 No. 2 (2025): ABDI UNISAP: Jurnal Pengabdian Kepada Masyarakat
Publisher : UPT Publikasi dan Penerbitan Universitas San Pedro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59632/abdiunisap.v3i2.547

Abstract

Kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan kemandirian ekonomi ibu rumah tangga melalui pelatihan dan pendampingan usaha berbasis potensi lokal di Kampung Keganteran. Program dilaksanakan dengan pendekatan berbasis riset melalui tahapan observasi awal, identifikasi kebutuhan, analisis potensi lokal, pelatihan teknis, pembentukan kelompok usaha, serta evaluasi hasil kegiatan. Pelatihan meliputi penyuluhan kewirausahaan, praktik produksi keripik pisang dan keripik bawang, pengemasan, serta strategi pemasaran sederhana. Hasil kegiatan menunjukkan adanya peningkatan pengetahuan dan keterampilan peserta sebesar 65% berdasarkan hasil pre-test dan post-test. Sebanyak 83% produk yang dihasilkan telah memenuhi standar mutu dasar, meliputi tekstur renyah, warna merata, dan kemasan yang rapi. Selain itu, terbentuk kelompok usaha yang mampu membagi peran produksi dan mulai melakukan pemasaran melalui sistem titip jual di warung sekitar. Program ini juga berdampak pada meningkatnya kepercayaan diri, motivasi berwirausaha, serta inisiatif pengembangan produk lanjutan. Dengan demikian, pelatihan dan pendampingan usaha berbasis potensi lokal terbukti efektif dalam meningkatkan keterampilan teknis, kemampuan manajerial, serta memperkuat kolaborasi kelompok sebagai upaya mendukung keberlanjutan usaha pangan lokal masyarakat.
Improving university students’ geometrical understanding of derivatives through graphic visualization Khotimah Khotimah; Indri Lestari; Ria Noviana Agus; Rina Oktaviyanthi; Shila Panca Putri; Semiha Kula Ünver
Jurnal Elemen Vol 12 No 1 (2026): January
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/jel.v12i1.33325

Abstract

This study addresses university students’ persistent difficulties in developing geometrical thinking, defined as the ability to interpret slopes, understand tangent behavior, and coordinate graphical and symbolic representations, when learning derivative concepts. The study investigates changes in students’ geometrical thinking following instruction supported by graphic visualization. A one-group pretest–posttest quasi-experimental design was conducted with 30 students in mathematics education, limiting causal inference due to the absence of a control group. Data were collected using a six-item open-ended geometrical thinking test and structured classroom observations, which served as triangulation. The results showed significant improvement after the visualization-based instruction. The average pretest score increased from 48.12 to 67.51, with a normalized gain (N-gain) of 0.39, indicating moderate improvement. A paired-sample t-test confirmed a statistically significant difference (p < 0.001). Although the effect size was large (d = 4.17), this finding should be interpreted cautiously given the study design and sample size. Observation data supported these results by revealing improved graphical reasoning, representational coordination, and student engagement. These findings indicate the potential of graphic visualization to support students’ geometrical thinking in derivative learning, rather than to demonstrate definitive instructional effectiveness.
Identifying the Factor Structure of Students' Algebraic Thinking Through an Area Model Supported by PhET Interactive Simulation Kaila Tazkia; Shinta Yuhanida; Muhammad Ihsan Idzharuddien; Rina Oktaviyanthi; Ria Noviana Agus; Giyanti Giyanti
TANJAK Vol 7 No 2 (2026): Agustus
Publisher : Jurusan Tarbiyah dan Pendidikan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35961/tanjak.v7i2.3074

Abstract

This study aims to identify the factor structure of students’ algebraic thinking skills within an area model learning context supported by PhET Interactive Simulation. A quantitative approach using exploratory factor analysis was applied to data from 128 students based on 16 indicators representing four aspects of algebraic thinking: generalization, representation, transformation, and conceptual meaning. The analysis involved the Kaiser-Meyer-Olkin (KMO) test, Bartlett’s test of sphericity, measures of sampling adequacy (MSA), principal component analysis, eigenvalue criteria, and Varimax rotation. The initial analysis produced a KMO value of .631, while four variables (G1, G3, G4, and R1) were removed because their MSA values were below .50. The analysis of the remaining 12 variables produced a KMO value of .689 and a significant Bartlett’s test (p < .001). Four components with eigenvalues greater than 1 were retained and accounted for 62.06% of the total variance before rotation. The rotated solution revealed three interpretable dimensions: a visual-representational factor integrating generalization and representation, a procedural-transformational factor, and a conceptual-meaning factor. The fourth component had no clearly dominant group of indicators and was therefore interpreted cautiously as a residual component. These findings indicate that students’ algebraic thinking in the examined instructional context is multidimensional, with visual-representational, procedural-transformational, and conceptual dimensions showing distinct patterns.
Co-Authors Eva Safaah Giyanti Giyanti Kaila Tazkia Khotimah Khotimah Kornkanok Lertdechapat Lestari, Indri Mark Lester B. Garcia Muhammad Ihsan Idzharuddien Rina Oktaviyanthi, Rina Semiha Kula Ünver Shila Panca Putri Shinta Yuhanida Usep Sholahudin