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All Journal Jurnal Pendidikan Fisika Indonesia Jurnal Pendidikan IPA Indonesia
H. Kuswanto
Jurusan Pendidikan Fisika, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Yogyakarta (UNY), Yogyakarta, Indonesia
Education Physics

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SARON DEMUNG’S TIMBRE AND SONOGRAM OF GAMELANS GUNTURMADU FROM KERATON NGAYOGYAKARTA Kuswanto, H.
Jurnal Pendidikan Fisika Indonesia Vol 8, No 1 (2012)
Publisher : Jurusan Fisika, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Semarang

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Abstract

Penelitian ini bertujuan untuk mempelajari spectrum warna bunyi (timbre) dan sonogram dari Saron Demung Gamelan Gunturmadu dari Keraton Ngayogyakarta. Suara setiap wilahan direkam dengan bantuan pengolah suara yang ada pada komputer.  Akurasi frekuensi yang dapat diperoleh dengan pengolah ini adalah 1 Hz. Frekuensi dasar dari saron demung gamelan Gunturmadu untuk setiap wilahan #1 sampai dengan #7 masing-masing adalah 197, 207, 221, 261, 285, 304, 326 Hz. Lokasi frekuensi harmonik  tidak berturutan akan tetapi disisipi dengan frekuensi tak harmonis. Jumlah frekuensi harmonis dan tak harmonis yang membentuk warna bunyi untuk setiap wilahan berbeda. Ketebalan garis frekuensi dasar pada sonogram bertahan lebih lama dibandingkan dengan frekuensi lain pada suatu wilahan.The aim of this research is to study the timbre spectrums of Saron Demung instruments of gamelans Gunturmadu of Keraton Ngayogyakarta. This gamelan, as a set of traditional Javanese ensemble, are a pelog scale, seven scale in one octave. Sound of Saron Demung instruments are recorded by sound software. This software can display waveform in time domain and spectrum in frequency domain. The fundamental frequency is shown directly by software.  Other peak frequencies can be traced by shifting the cursor on top of it. The accuracy of frequency that can be produced is 1 Hz. Fundamentals frequencies of  Saron Demung  keys  #1 to #7 of gamelan Gunturmadu are 197, 207, 221, 261, 285, 304, 326 Hz respectively. The location of the harmonic frequencies are not always consecutive, but sometimes punctuated by another frequency. The numbers of harmonics and inharmonic frequencies of each keys are different. The thick lines of the fundamental frequency in sonogram exist in longer time than the other.
Development of Analogy-Based Material Physics Module to Provide Analogy Ability of Physics Teachers Candidates Yanti, F. A.; Kuswanto, H.; Habibi, H.; Kinasih, A.
Jurnal Pendidikan Fisika Indonesia Vol 16, No 1 (2020)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v16i1.9122

Abstract

It is known that the 'electronic structure of atoms' in material physics is microscopic. This atomic structure has an abstract and complicated concept, therefore good analogy skills are needed to study comprehensively. This research develops a free analogy-based material physics module to supply analogy skills to prospective physics teacher students. Module development uses the 4D model namely Define, Design, Development and Disseminate. The feasibility aspects are required based on the presentation, content, and grammar. Data obtained from expert assessment and trials using questionnaires, interviews, and tests. Increased student analogy skills were analyzed using normalized N-gain. The results obtained are: (1) the characteristics of the module that has learning steps such as teaching with analogy models, namely: introducing the concept of targets, reviewing the concept of analogies, identifying the relevant nature of targets and analogies, mapping analogies with targets, identifying analogies that are not relevant to targets, and make conclusions, (2) module quality on atomic electronic structure material developed is categorized as feasible, (3) modules are proven to increase mastery of the concept of atomic electronic structure (N-gain = 54%) and analytical skills prospective teachers physics (N-gain = 56%). The development of physics modules based on free analogies can be applied to other learning, such as biology, chemistry, and mathematics to explain abstract material.
Rasch Analysis to Evaluate the Psychometric Properties of Junior Metacognitive Awareness Inventory in the Indonesian Context Sukarelawan, M. I.; Jumadi, J.; Kuswanto, H.; Soeharto, S.; Hikmah, F. N.
Jurnal Pendidikan IPA Indonesia Vol 10, No 4 (2021): December 2021
Publisher : Program Studi Pendidikan IPA Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpii.v10i4.27114

Abstract

Empirically, metacognitive awareness is one of the main contributors to students' academic success. At the beginning of its development, the Jr.MAI self-report questionnaire was intended to measure students' metacognitive awareness in the United States. However, the evaluation of the psychometric properties for Indonesian high school students is still limited. The original Jr.MAI cannot be applied in Indonesia. By evaluating students' metacognitive awareness using Jr.MAI, teachers can understand students' information and knowledge related to their learning strategies and behaviors. Therefore, this study aims to evaluate the psychometric properties of the Indonesian translation of the Junior Metacognitive Awareness Inventory (Jr.MAI) self-report questionnaire. The Jr.MAI questionnaire consists of 18 items and uses a 5-point Likert scale response. 296 students (Male = 45.9%; Female = 54.1%) of public senior high schools in Indonesia completed the Jr.MAI questionnaire. The Rasch model was used to evaluate the psychometric properties of Jr.MAI. The results showed that the 5-point rating scale with 18 items functioned properly with a good fit, no gender bias, and achieved unidimensionality and local independence assumptions. It proved that the Jr. MAI questionnaire defined the latent variables and classified persons and items properly. Therefore, we concluded that the developed Jr.MAI questionnaire had good psychometric properties to be used by teachers and counselors for measuring and mapping the metacognitive characteristics at the senior high school level. 
Co-Authors Habibi, H. Hikmah, F. N. Jumadi, J. Kinasih, A. Moh. Irma Sukarelawan Soeharto, S. Yanti, F. A.