Ekki Wahyuni Lubis
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Pembelajaran Matematika Topik Pembuktian Teorema Pythagoras Berbasis Media Visual Dwi Ardy Dermawan; Ekki Wahyuni Lubis; Fadhila Rahma
PEMA Vol. 5 No. 1 (2025)
Publisher : Perkumpulan Manajer Pendidikan Islam Indonesia (PERMAPENDIS) Prov. Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56832/pema.v5i1.778

Abstract

Artikel ini bertujuan untuk membuat serta mengembangkan media pembelajaran yang valid dan efektif dalam memahami pembelajaran tentang pembuktian Pythagoras. Hasil dari artikel ini adalah sebuah produk media pembelajaran berupa pembuktian teorema Pythagoras berbasis media visual. Media ini di perkenalkan kepada 25 orang siswa kelas X SMA N 1 Rantau Selatan. Uji ini menghasilkan 88% siswa mengerti akan materi ini dan menyatakan bahwa media visual ini sangat membantu. Berdasarkan hasil tersebut dapat disimpulkan bahwa produk media tersebut merupakan media yang valid, praktis, dan efektif untuk membantu siswa untuk membangun pemahaman tentang dalil Pythagoras.
Penerapan Analisis sensitivitas dalam Pengambilan Keputusan Operasional Fadhilah Rahmah; Ekki Wahyuni Lubis; Winda Winata S Pane; Abdullah Nasution; Siti Salamah Br Ginting
Aktivisme: Jurnal Ilmu Pendidikan, Politik dan Sosial Indonesia Vol. 2 No. 3 (2025): Juli: Aktivisme: Jurnal Ilmu Pendidikan, Politik dan Sosial Indonesia
Publisher : Asosiasi Peneliti dan Pengajar Ilmu Hukum Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/aktivisme.v2i3.1106

Abstract

This study aims to systematically review the application of sensitivity analysis in operational decision-making based on linear programming. The research method used is a Systematic Literature Review (SLR), analyzing scientific articles published between 2018 and 2024 from databases such as Scopus, ScienceDirect, SpringerLink, and Google Scholar. The review focuses on how sensitivity analysis is employed to evaluate the stability of linear programming solutions in the face of parameter changes, such as objective function coefficients, constraint bounds, and resource availability. The results indicate that local sensitivity analysis approaches are the most commonly used due to their simplicity and ease of interpretation. However, they fall short in capturing parameter interactions and complex uncertainty. Therefore, recent studies have started to explore global sensitivity methods, such as Morris and Sobol techniques, as well as geometric visualization approaches to provide a more holistic understanding. This study recommends integrating both local and global approaches and utilizing computational tools to enhance the robustness of operational decisions. The findings are expected to serve as a reference for more adaptive, efficient, and resilient decision-making under uncertainty.
Mini Tinjauan Literatur : Pemanfaatan Software Math Master untuk Berpikir Komputasi Siswa Ekki Wahyuni Lubis; Yahfizham Yahfizham
Pentagon : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 3 No. 2 (2025): JUNI : Pentagon : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/pentagon.v3i2.558

Abstract

This study is a mini literature review aimed at exploring the use of the Math Master software in enhancing students’ computational thinking skills. Computational thinking is a crucial 21st-century skill, particularly in technology-based mathematics learning. This article reviews several relevant studies that discuss the use of educational software, specifically Math Master, in helping students solve mathematical problems systematically, logically, and efficiently. The review findings indicate that Math Master can serve as an interactive tool that supports conceptual understanding and encourages algorithmic thinking among students.