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All Journal JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI Jurnal Ilmiah Pendidikan Profesi Guru Impulse: Journal of Research and Innovation in Physics Education Jipmas : Journal Inovasi Pengabdian Masyarakat
Ahmad, Liza Septia
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Humanities Earth & Planetary Sciences Education Electrical & Electronics Engineering Physics Social Sciences Other

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Dampak Pembelajaran Fisika Menggunakan Alat Peraga Venturimeter pada Materi Fluida Dinamis Ahmad, Liza Septia; Dian Utami; Tessa Zerina Naryamastri; Hari Anggito
Jurnal Ilmiah Pendidikan Profesi Guru Vol. 7 No. 1 (2024): May
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jippg.v7i1.69230

Abstract

Penggunaan alat peraga di sekolah dapat membantu guru dalam menjelaskan konsep fisika. Namun, masih sering ditemukan alat peraga yang belum digunakan secara optimal yang berdampak pada kesulitan siswa dalam memahami materi yang diajarkan. Penelitian ini bertujuan untuk mengidentifikasi keberhasilan dalam pembelajaran fisika menggunakan alat peraga venturimeter pada materi fluida dinamis pada siswa kelas XI MIPA. Penelitian ini menggunakan metode kualitatif dengan skema naratif deskriptif. Informan dalam penelitian ini melibatkan 36 siswa kelas XI MIPA. Metode yang digunakan dalam mengumpulkan data yaitu dokumentasi, wawancara, observasi, dan data kepustakaan. Pengambilan sampel menggunakan teknik purposive sampling dan snowball. Penelitian ini dianalisis dengan model analisis interaktif dari Miles dan Haberman yang meliputi pengumpulan data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan hasil yang baik yaitu lebih dari setengah siswa mampu mencapai nilai di atas KKM sekolah. Siswa mengalami peningkatan setelah menggunakan alat peraga venturimeter. ketertarikan siswa pada alat peraga venturimeter terlihat dari antusiasme yang lebih tinggi saat alat peraga ini digunakan dalam pembelajaran. Ketertarikan terhadap alat peraga pada pembelajaran tersebut berdampak positif pada aktivitas pembelajaran yang ditunjukkan saat pengamatan dan evaluasi siswa yang mengalami peningkatan. Implikasi penelitian ini ialah, penggunaan alat peraga venturimeter dapat meningkatkan pemahaman siswa terhadap konsep fluida dinamis secara signifikan. Dengan alat peraga ini, siswa dapat melihat secara langsung fenomena perubahan tekanan dan kecepatan aliran fluida, yang abstrak menjadi lebih konkret.
Discovery Learning Model-based Virtual Lab on Photoelectric Effect Material to Improve Critical Thinking Skills Ahmad, Liza Septia; Prasetyo, Zuhdan Kun
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 12 No 2 (2023): Jurnal Ilmiah Pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v12i2.17553

Abstract

This article provides an overview and explanation of a product in virtual laboratory media based on the development of discovery learning with a focus on the material of the photoelectric effect. The paper also outlines the readability and practicality aspects for both students and teachers in the virtual lab while explaining the effectiveness of the virtual lab in enhancing students' critical thinking skills. The product discussed in this article was developed using the 4D model and scheme. It has undergone expert validation and product testing. The research presented in this article was conducted at two public high schools in Yogyakarta. The study utilized questionnaires, observation sheets, expert validation sheets, readability sheets, practicality sheets, and tests. The research data was analyzed using Gregory's analysis for expert validation and Manova's analysis for field testing. The study results indicate that the virtual lab is deemed appropriate as a learning medium based on expert validation for the photoelectric effect material. From the perspectives of readability and practicality, the developed product falls into the excellent category. This study, using the Manova test, effectively illustrated a substantial enhancement in the critical thinking abilities of students, notably in the areas of analysis, elaborating on concepts, and forming conclusions. Consequently, this paper offers a detailed insight into the creation of novel educational tools and presents robust empirical data supporting their role in improving critical thinking in students, with a specific focus on the subject of the photoelectric effect.
Pelatihan Analisis Instrumen Menggunakan Quest untuk Meningkatkan Kompetensi Guru dalam Evaluasi Pembelajaran Tumanggor, Awal Mulia Rejeki; Ahmad, Liza Septia; Sekeon, Cristi Ascika; Silaban, Yohansen Frando Hadinata; Pujianti, Isna; Tarigan, Yustinus
Jurnal Inovasi Pengabdian Masyarakat Vol 3 No 1 (2026): JIPMAS : Jurnal Inovasi Pengabdian Masyarakat
Publisher : PT. Karya Inovatif Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65255/jipmas.v3i1.299

Abstract

This community service activity aimed to improve teachers' competency in analyzing learning evaluation instruments through training on Quest software based on the Rasch Model. The participants were 25 high school teachers in Tondano, conducted online via Zoom over two days using a participatory training approach. The method included preparation, execution (conceptual reinforcement, demonstration, hands-on practice, and reflective discussion), and evaluation stages. Data were collected through pretests-posttests, questionnaires, and observations, then analyzed descriptively. Results showed a significant increase in competency, with the average pretest score of 46.80 increasing to 81.20 on the posttest (a 73.50% increase). The N-Gain value of 0.65 falls into the medium category, indicating meaningful training effectiveness. A total of 92% of participants showed substantial improvement and were able to operate Quest and interpret outputs such as item difficulty (logit), item fit statistics (INFIT/OUTFIT MNSQ), and reliability. Participant responses were very positive, with 88% stating the material was relevant and 84% committing to apply the training results in their schools. This activity contributes to strengthening teachers' pedagogical competence in evidence-based learning evaluation.
Rasch Model Analysis of Senior High School Physics Test Items in an Academic Competition in North Sulawesi Tumanggor, Awal Mulia Rejeki; Mahulae, Parno Sumanro; Sekeon, Cristi Ascika; Silaban, Yohansen Frando Hadinata; Ahmad, Liza Septia; Pujianti, Isna
Impulse: Journal of Research and Innovation in Physics Education Vol. 6 No. 1 (2026): Vol. 6 No. 1 (2026): Impulse: Journal of Research and Innovation in Physics Edu
Publisher : Pendidikan Fisika FITK UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/impulse.2026.61-03

Abstract

Evaluating the quality of test items is crucial for accurately assessing student competence in academic competitions such as physics olympiads. This study aims to analyze the quality of physics olympiad test items used in the Temu Fisika 2024 competition for senior high school students across North Sulawesi. A total of 40 multiple-choice items from the preliminary round of the Temu Fisika 2024 physics olympiad were analyzed. The responses of 35 high school students who participated in the competition were examined using the Rasch model through the QUEST program. The analysis covered item fit, reliability (item and person), difficulty level, and distractor effectiveness as complementary CTT analysis. The results showed that 33 items (82.5%) fit the Rasch model, while seven items showed misfit. The Rasch reliability indices were good (Item Reliability = 0.82, Person Reliability = 0.84). The difficulty levels were appropriately distributed, with 50% of items categorized as moderate, 22.5% easy, 20% difficult, 2.5% very easy, and 5% very difficult. However, distractor analysis revealed a significant shortcoming: only 15% of items had all distractors functioning effectively. This study is the first Rasch analysis of the Temu Fisika olympiad, providing empirical evidence that while the test is generally reliable, specific improvements are needed. The findings highlight the importance of revising misfitting items and non-functional distractors to improve the discriminating power of the test, particularly among high-ability participants. This study also provides a practical reference for improving item development and validation processes in academic competitions.
Co-Authors Awal Mulia Rejeki Tumanggor Dian Utami Hari Anggito Mahulae, Parno Sumanro Pujianti, Isna Sekeon, Cristi Ascika Silaban, Yohansen Frando Hadinata Tarigan, Yustinus Tessa Zerina Naryamastri Zuhdan Kun Prasetyo