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Journal : Jurnal Pendidikan Fisika Indonesia

Rasch Model Application: Identification of Students’ Conceptual Understanding of Static Fluid Khusaini, Khusaini; Azizah, Nur; Suwasono, Purbo; Yogihati, Chusnana Insjaf; Andriani, Aries Dewi
Jurnal Pendidikan Fisika Indonesia Vol. 21 No. 1 (2025)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v21i1.15023

Abstract

This research aimed to determine the level of student conceptual understanding of Static Fluid material using the Rasch Model. The study used a cross-sectional survey with a quantitative descriptive approach. The sample was invited using simple random sampling of as many as 50 students of class XI Science in Malang Regency. The research used 15 multiple-choice questions on the conceptual understanding of static fluids. Research data analysis used the Rasch Model, assisted by Ministep software version 4.8.2.0. Based on the results of data analysis, it was concluded that the average distribution of the ability to understand static fluid concepts was above the standard average difficulty of the questions. This is indicated by 34 out of 50 students falling into the high and medium ability categories, meaning that students' conceptual understanding of static fluid material is quite good. The results of this research also found that students' conceptual understanding in the sub-chapter of Archimedes' principle was relatively low, as evidenced by 13 students answering correctly the question of conceptual understanding in this sub-chapter. Meanwhile, students' conceptual understanding of the hydrostatic pressure sub-chapter is relatively high, as indicated by 47 students answering correctly the question of conceptual understanding in this sub-chapter. This research is beneficial in providing a clear picture of students' conceptual understanding of static fluid material, highlighting areas where students still face difficulties. Teachers can use this information to design appropriate teaching strategies. Additionally, applying the Rasch model in evaluating conceptual understanding can enrich the literature in physics education.
Revolutionizing Ripple Tank Experiments: Innovative Tools to Enhance the Wave Phenomena and Characteristics Learning Md Hairi, Muhammad Fauzi; Yap Wing Fen; Khairul Adib Yusof; Ismail, Muhammad Faiz Iqbal; Samuri, Muhammad Nazreen; Kamarudin, Nurzatulshima; Khusaini, Khusaini
Jurnal Pendidikan Fisika Indonesia Vol. 21 No. 1 (2025)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v21i1.22203

Abstract

The ripple tank is one of the important experimental tools for teachers and students in the teaching and learning of wave physics. It is necessary for teachers to demonstrate various phenomena related to water waves for better students' understanding. However, it is often less ideal to carry out the experiment using a conventional setup outside the laboratory setting due to its lack of portability. This study develops a portable ripple tank to enhance the teaching experience in wave phenomena and characteristics. Traditional ripple tanks face limitations in terms of size, portability, and observation clarity, prompting the need for innovation. The proposed portable ripple tank addresses these challenges by integrating low-cost materials and electronic components to improve accessibility and functionality. This study aimed to design and evaluate a portable ripple tank integrated with digital components to enhance classroom usability and learning outcomes. Through the adoption of the ADDIE instructional design model, the study systematically analyzes the needs of 20 physics teachers through semi-structured interviews and direct observations, which enables the key issues with existing ripple tanks in school laboratories to be identified. Subsequently, the portable ripple tank was designed and developed, incorporating features such as a digital stroboscope and an alternative power supply for enhanced usability. In the implementation, five-wave experiments were conducted using the tool to evaluate its effectiveness in teaching key wave concepts such as reflection, refraction, diffraction, and interference. In evaluation phases, the effectiveness of the portable ripple tank is assessed by three expert teachers, who assess the tool’s usability and effectiveness in classroom settings, confirming its practicality, affordability, and impact on students’ understanding. This research contributes to the advancement of wave physics education by providing educators with a versatile and user-friendly experimental tool, enabling students to visualize and understand complex wave concepts with ease.
Co-Authors A.A. Ketut Agung Cahyawan W Afifah Azzahrah Agoestina Mappadang Agus Suherman Agus Suherman Agustin, Nita Aulia Ahmad Khusaeni Aisyah Ratnasari Ali Sandy Mulya Alim, Puji Alviani, Fani ambuy sabur Andi Yustira L. Wahab Andi Yustira Lestari Wahab Andini, Andini Andriani, Aries Dewi Aniek Widiarti Aniek Widiarti Aniek Widiarti Anita Anita Atrisia, Marchela Indah Bambang Mardi Sentosa Bastian, Asep Ferry Christine, Linda Chusnana Insyaf Yogiyanti Debi Wulandari Debi Wulandari Esa Puspa Kartika Wardani Estu Niana Syamiya Estu Niana Syamiya Fitri Amalia Gumelar Widia Asmoro Hebi Ardi Safira hudaya hactuconsina Hudaya Latuconsina Imas Sukaesih Ismail, Muhammad Faiz Iqbal Jarnawi Afgani Dahlan Kamarudin, Nurzatulshima Kanzu, Ahmad kartika sari Khairul Adib Yusof Kurniawan, Bakhrul Rizky Lestari, Lina Widya Marchela Indah Atrisia Mawaddah, Siti Nurul Md Hairi, Muhammad Fauzi Mita Anzaningtyas muhammad roffi tamammul Huda Munisah - Munisah Munisah, Munisah - Mustofa Kamil, Mustofa Muvera, Muvera Nudin, Burhan Nur Azizah Pradesti, Ajeng Pratama, Rommy Purbo Suwasono Putra, Muhammad Hartana Iswandi Putri, Ida Ayu PUTRO, TETUKO RAWIDYO Rahayu, Putri Ramdani, Heni Cahya Ria Kurniawati Ria Kurniawati Ridho, Muhamad Aqil Riski Ambarumanti Ruhiyat Taufik Sabur, Ambuy Saleh, M Nurul Ikhsan Samsul Arifin Samuri, Muhammad Nazreen Sentot Kusairi Siti Nurul Mawaddah Siti Nurwulan Sri Jaya Lesmana SRI LESTARI Sri Lestari Sri Lestari Sunaryono Sunaryono, Sunaryono Sundusiah, Siti Syafawi, Lely Syifa Fadhilah Hamid Tetuko Rawidyo Putro Veti Melia Sari Widiarti, Aniek Windi Widiawati Wirda Latifah Yap Wing Fen Yuli Setyaningsih, Yuli