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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Jambura Physics Journal Kasuari: Physics Education Journal (KPEJ)
Wahyu Muzizat Mohamad
Universitas Negeri Gorontalo
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Energy Materials Science & Nanotechnology Physics

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PENGEMBANGAN TES DIAGNOSTIK UNTUK MENGIDENTIFIKASI PEMAHAMAN KONSEP SISWA SMA PADA POKOK BAHASAN GELOMBANG BUNYI Unggul Wahyono; I Made Hermanto; Nurhayati Nurhayati; Lukman Samatowa; Wahyu Muzizat Mohamad; Ni Luh Sri Maharani
Jambura Physics Journal Vol 5, No 1 (2023): April 2023
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jpj.v5i1.19294

Abstract

This study aims to develop a diagnostic test for understanding the concept of sound waves and to test the validity and reliability of the test. The research method used is development research with reference to the ADDIE model (Analyzing, Designing, Developing, Implementing, Evaluating). This research was conducted at a senior high school in the city of Bandung involving 30 students as respondents. The stages of developing a diagnostic test include literature study, needs analysis, formulating competencies and indicators, developing test items, expert validation, test trials, reliability analysis, ease of analysis, discriminating power analysis, and item selection. The validity of the diagnostic test for understanding the concept of sound waves was tested using several techniques, such as content validation and construct validation. While the reliability of the diagnostic test was tested using the K-R.20 calculation. The results showed that the developed diagnostic test for understanding the concept of sound waves had good validity and reliability. This test can be used to measure students' understanding of the concept of sound waves and to identify difficulties experienced by students in understanding the concept.
Efforts to Increase Students' Problem-Solving Abilities Through the Application of PBL Assisted by Virtual Laboratory on the Hydrostatic Pressure Concept Indrawati Lasumbu; Dewi Diana Paramata; Tirtawaty Abdjul; Abdul Haris Odja; Dewa Gede Eka Setiawan; Wahyu Mu’zizat Mohamad
Jurnal Penelitian Pendidikan IPA Vol 10 No 8 (2024): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i8.8058

Abstract

This research aims to enhance the problem-solving abilities of class XI students at MAS Wahdah Islamiyah Tilongkabila using a problem-based learning (PBL) model through the Classroom Action Research method. The collected data includes students' problem-solving abilities, student activities, and teacher activities. The instruments used were observation sheets for teacher and student activities, final tests (post-tests) on students' problem-solving abilities, and interviews. The average percentage of teacher activity observations increased from 65.6% in cycle I to 93.7% in cycle II, marking a 28.1% improvement. Student activity rose from an average of 56.75% in cycle I to 89% in cycle II, reflecting a 32.2% increase. Additionally, students' problem-solving abilities improved from an average of 58.6% in cycle I to 84.3% in cycle II, a 25.7% increase. The application of PBL, assisted by a virtual laboratory on the concept of hydrostatic pressure, significantly enhances students' problem-solving skills.
Physics Learning Strategy on Sound for Autism Phase F Students in Special Needs School Hasan Tahir; Masri Kudrat Umar; Wahyu Muzizat Mohamad
Kasuari: Physics Education Journal (KPEJ) Vol. 8 No. 1 (2025): June 2025
Publisher : Universitas Papua, Jurusan Pendidikan Fisika FKIP Unipa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/kpej.v8i1.946

Abstract

This research aims to describe the learning strategies applied by teachers in teaching the physics concept of sound to Phase F autistic students in a Special Needs School. The study uses a qualitative descriptive method, focusing on one autistic student in Phase F and four intellectually disabled students as supporting subjects. Data were collected through observation, interviews with the teacher, and documentation of learning activities. The results show that the teacher implemented visual and multisensory-based strategies using an individual approach and two-way communication through facial expressions, body movements, and visual media. Teaching aids such as pictures of musical instruments, short videos, and whiteboard writings significantly helped students understand the sound concept. Although the strategies increased students' engagement and attention, challenges arose during lesson closures, where reflective and summarizing activities were lacking. Teachers also faced difficulties ensuring student comprehension of verbal instructions, which were addressed through written instructions and visual demonstrations. The study recommends developing concrete experience-based strategies, repeated reinforcement, and structured learning environments tailored to the characteristics of Phase F autistic students.
Co-Authors Abdul Haris Odja Dewa Gede Eka Setiawan Dewi Diana Paramata Hasan Tahir I Made Hermanto Indrawati Lasumbu Lukman Samatowa Masri Kudrat Umar Ni Luh Sri Maharani Nurhayati Nurhayati Tirtawaty Abdjul Unggul Wahyono