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All Journal Jurnal Pengabdian kepada Masyarakat Nusantara Journal of Science and Science Education (JoSSEd)
Wattimena, Herman Semuel
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Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Neuroscience Physics Social Sciences

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A Stone Can Bounce on the Surface of Water: A Conceptual Physics Analysis Study of Students Wattimena, Herman Semuel; Jamaludin, Jamaludin; Batlolona, John Rafafy
Journal of Science and Science Education Vol. 5 No. 1 (2024): April
Publisher : Pascasarjana, Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jossed.v5i1.9564

Abstract

Throwing a stone on the surface of the water has been a popular hobby for thousands of years, but in recent times, this phenomenon is rarely encountered in physics education. Flat and round stones are the best choice due to their favorable surface area, which creates a rebound when they collide with the water. However, the "magic angle" between the rotating stone and the water must be around 20 degrees to achieve the maximum number of bounces. This is an interesting phenomenon to explore, especially for students in rural areas who often visit rivers or beaches to play. Therefore, this study was conducted to analyze the conceptual understanding of physics students regarding the phenomenon of stones bouncing on the surface of water. This research is a qualitative study that analyzes students' responses through direct questions posed by the teacher. The study was conducted with 20 ninth-grade students at SMP Negeri 81 Maluku Tengah. The findings show that students have a very weak understanding of the physics concepts related to the stone-bouncing phenomenon. They are unable to explain the phenomenon scientifically because they are still influenced by answers based on local and cultural experiences. As a result, the teacher took action by engaging students in direct learning and providing clear explanations of the concepts. Consequently, students' conceptual understanding of physics improved, and they were able to explain the phenomenon scientifically
Analysis of students' cognitive physics learning outcomes on the material of substances and their forms using think-pair-share Taihuttu, Jony; Batlolona, John Rafafy; Wattimena, Herman Semuel; Jamaludin, Jamaludin; Silahooy, Stevi; Akyuwen, Frandy
Journal of Science and Science Education Vol. 5 No. 2 (2024): October
Publisher : Pascasarjana, Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jossed.v5i2.9711

Abstract

In the last decade, many studies of physics learning at the junior high school level seem to show that student-centered interactions have a greater effect than teacher-centered interactions in improving physics learning outcomes. Based on this premise,Think-pair-share (TPS) which is one type of cooperative learning model developed by Frank Lyman and his colleagues from the University of Maryland (1981) is a teaching strategy that promotes active and collaborative learning; however, its effectiveness and application are very good in physics learning. The purpose of this study is to analyze student learning outcomes using the TPS type cooperative model on the material of substances and their forms. This study uses a descriptive model with 24 students as subjects divided into four groups. The implementation of the study on SMP Xaverius Passo. Data were collected through tests, namely pretest and posttest and observations using student worksheets and affective and psychomotor assessments of students. The results showed that there was a significant increase in student learning outcomes after the implementation of the TPS model, both from cognitive, affective, and psychomotor aspects. This study recommends the use of the TPS cooperative learning model as a solution to improve the quality of physics learning in schools
Development of Creativity-Based Physics Lab Equipment: A New Solution for Deep Concept Understanding Wattimena, Herman Semuel
Journal of Science and Science Education Vol. 6 No. 1 (2025): April
Publisher : Pascasarjana, Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jossed.v6i1.11628

Abstract

This study aims to produce physics learning devices that can be used by students in carrying out physics practical activities in high school; so that their conceptual understanding of physics can be improved, as well as being able to increase their creativity in physics practical activities. Data collection was carried out through observation, questionnaires, interviews, and tests. Data analysis was processed qualitatively and quantitatively. Qualitative data processing was carried out through transcription, tabulation, coding, description, and analysis. Quantitative data was processed using N-gain based on pretest data and posttest data for the experimental and control classes. The effectiveness of the developed learning devices can be seen through the results of expert analysis and quantitative analysis of test results. The results of the study based on N-gain analysis showed thatThe developed high school physics learning device appears to be able to improve students' conceptual understanding and improve their creative thinking skills in experimenting by 0.49 in the moderate category
Pelatihan Penggunaan PhET Simulation untuk Meningkatkan Konseptual Fisika Siswa Konsep Listrik Searah (DC) Wattimena, Herman Semuel; Batlolona, John Rafafy
Jurnal Pengabdian kepada Masyarakat Nusantara Vol. 5 No. 4 (2024): Jurnal Pengabdian kepada Masyarakat Nusantara (JPkMN) Edisi September - Desembe
Publisher : Lembaga Dongan Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55338/jpkmn.v5i4.4573

Abstract

Siswa menganggap fisika sebagai mata pelajaran yang sulit untuk dipelajari karena beberapa konsep yang abstrak bagi siswa. Konsep listrik searah (DC) merupakan salah satu konsep yang menantang siswa karena sulit dipelajari. Penggunaan PhET simulations merupakan salah satu alternatif dalam menyampaikan konsep-konsep fisika. Pengajaran fisika yang efektif memerlukan penggunaan alat pengajaran yang baik dan beragam seperti multimedia di seluruh proses pembelajaran. Oleh karena itu tujuan dari kegiatan pengabdian kepada masyarakat (PkM) adalah untuk melatih siswa dalam meningkatkan konseptual siswa khususnya materi listrik searah (DC). Dalam pembelajaran di kelas tidak semua guru dapat mengoperasikan dan merancang kegiatan pembelajaran yang menggunakan PhET simulations. Sasaran pelatihan ini adalah para siswa dan guru kelas 12 SMA Muhammadiyah Masohi. Metode yang digunakan adalah pelatihan dengan penggunaan teknologi dalam kegiatan pembelajaran. Kegiatan pelatihan ini berhasil memberikan pengetahuan dan pengalaman yang dibutuhkan tentang penggunaan PhET simulations dan terapannya dalam pembelajaran di kelas. Pengetahuan dan pengalaman selama pelatihan diharapkan menciptakan pembelajaran fisika yang inovatif dan menyenangkan di SMA Muhammadiyah Masohi. Hasil akhir dari kegiatan pelatihan adalah siswa dan guru dapat memahami dan menerapkan media PhET simulations dalam merancang kegiatan pembelajaran di kelas. Keberhasilan kegiatan ini diukur melalui evaluasi setelah melaksanakan pelatihan berupa pemberian beberapa pertanyaan langsung kepada siswa siswa dan guru terkait penggunaaan PhET simulations.
Co-Authors Akyuwen, Frandy Batlolona, John Rafafy Jamaludin . Silahooy, Stevi Taihuttu, Jony