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All Journal Charm Sains : Jurnal Pendidikan Fisika
Pardede, Juven
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Education Physics

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STRATEGI KONTEKSTUAL GEOLISTRIK BERBASIS SENSOR ECSG DALAM MENINGKATKAN PEMAHAMAN KONSEP FISIKA SMA Sitorus, Parlindungan; Marbun, Juliaster; Sitinjak, Erni Kusrini; Pardede, Juven
Charm Sains: Jurnal Pendidikan Fisika Vol 6 No 3 (2025): OKTOBER
Publisher : Program Studi Pendidikan Fisika Jurusan Fisika Fakultas Matematika, Ilmu Pengetahuan Alam, dan Kebumian (FMIPAK), Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/charmsains.v6i3.533

Abstract

In the era of technology-based learning, innovation is required to connect physics concepts with real-world phenomena to enhance students’ deep and meaningful understanding. This study aims to examine the effectiveness of a contextual learning strategy based on geoelectric principles using the Electrical Conductivity Soil Geoelectric (ECSG) sensor to improve high school students’ understanding of resistivity and electrical conductivity concepts. The research employed a quasi-experimental method with a one-group pretest–posttest design involving 34 students of class XI Science at SMA Negeri 1 Pagaran, North Tapanuli Regency. The research instruments consisted of a conceptual understanding test, procedural skills observation, and a student response questionnaire. The results showed an increase in the average score from 46.50 to 75.80 with an N-Gain value of 0.55, categorized as moderate. Procedural skills achieved an average score of 3.33 (good category), while student responses to the learning implementation reached an agreement level above 85% (very good category). These findings indicate that the application of geoelectric sensor technology in physics learning can enhance measurement accuracy, active participation, and students’ learning motivation. Thus, the ECSG-based geoelectric contextual approach is effective in strengthening conceptual understanding, scientific skills, and the relevance of physics learning to real-life contexts in agrarian environments.
IMPLEMENTASI IoT DAN SENSOR MULTIFUNGSI DALAM PRAKTIKUM INDUKSI ELEKTROMAGNETIK Nainggolan, Juliper; Marbun, Juliaster; Surbakti, Mariana; Pardede, Juven
Charm Sains: Jurnal Pendidikan Fisika Vol 6 No 3 (2025): OKTOBER
Publisher : Program Studi Pendidikan Fisika Jurusan Fisika Fakultas Matematika, Ilmu Pengetahuan Alam, dan Kebumian (FMIPAK), Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/charmsains.v6i3.535

Abstract

This study aims to implement an Internet of Things (IoT) and multifunctional sensor system in the electromagnetic induction practicum to enhance students’ conceptual understanding and analytical skills. The research employed a quasi-experimental design with pre-test and post-test models involving 26 students enrolled in the Physics Laboratory Design and Production course. The practicum utilized real-time data acquisition, allowing students to directly observe relationships among magnetic flux variations, induced electromotive force (EMF), and current direction through a digital interface. Results revealed a significant increase in students’ conceptual understanding, with mean scores rising from 59.8% to 81.6% (p < 0.001). Moreover, 84.7% of participants achieved Good to Very Good understanding levels. Questionnaire data indicated high levels of motivation and satisfaction with the IoT integration, particularly regarding interactivity, rapid data analysis, and real-time visualization of physical phenomena. The implementation of IoT and multifunction sensors effectively improved the quality of physics laboratory learning, strengthened analytical thinking skills, and fostered contextual, technology-oriented learning experiences relevant to modern scientific education.
Co-Authors Marbun, Juliaster Mariana Br. Surbakti nainggolan, juliper Parlindungan Sitorus SITINJAK, ERNI KUSRINI