Japanese Journal of Applied Education
Online ISSN : 2759-3886
Print ISSN : 1346-4434
ISSN-L : 1346-4434
Current issue
Displaying 1-4 of 4 articles from this issue
  • Tomohiro Kubo, Takuya Kohno
    2024 Volume 48 Issue 2 Pages 37-42
    Published: December 10, 2024
    Released on J-STAGE: January 17, 2025
    JOURNAL RESTRICTED ACCESS
    The velocity of the sphere motion was estimated from the signals of a single LED light sensor. The signal waveform was shaped by the optical diffuser cap attached to the LEDs. To accurately estimate the width of the light-receiving signal, simultaneous measurement of its signal and an interference signal of the laser as a length reference was performed. The photoreceptive width of the LED utilized was determined to be 6.731 ± 0.044 mm. The sphere velocity was estimated from this photoreceptive width and the corresponding photoreceptive time. The results agreed with an uncertainty of about 10 % in the relative error to the theoretical velocity. It was demonstrated that the velocity could be estimated by two methods from the LED light-receiving signal. It was shown that the experimental apparatus could be used as an inquiry educational material by considering a large quantity of data measured by LEDs.
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  • Tomotaka Kozuki, Yutaka Kobayashi, Eishi Tanabe, Norio Nawachi, Takash ...
    2024 Volume 48 Issue 2 Pages 43-48
    Published: December 10, 2024
    Released on J-STAGE: January 17, 2025
    JOURNAL RESTRICTED ACCESS
    We propose a teaching method which can visualize voltage drops in series circuit of resistors utilizing Joule heat. We used a thermography camera in order to measure the temperature of whole the circuit. Brightness of obtained images indicate temperatures of the observing points. Furthermore, measured temperatures were converted into voltage drops across the resistances. The proposed method is easily composed by teachers and supposed to help elementary and junior high school students to understand the content of electricity such as series circuit.
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  • Kyoya Fukuda, Miyuki Shirai, Koji Urabe, Kotaro Murakami, Yoshitake Ku ...
    2024 Volume 48 Issue 2 Pages 49-54
    Published: December 10, 2024
    Released on J-STAGE: January 17, 2025
    JOURNAL RESTRICTED ACCESS
    The pandemic of coronavirus disease (COVID-19) has had various impacts on college and higher education. Our college implemented online classes, and prohibited students from attending college for the first 12 weeks starting from April 2020. We believe that utilizing the created digital teaching materials leads to individualized optimization of student-centered learning and provides teachers with more time and mental flexibility. In this study, we attempted blended teaching approach that incorporates face-to-face small-group practice and on-demand teaching materials into conventional classroom lecture subjects, and we report on its educational effectiveness.
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  • Tamaki Miwa, Kenji Sugawara, Daisuke Sakai, Kenji Harada
    2024 Volume 48 Issue 2 Pages 55-58
    Published: December 10, 2024
    Released on J-STAGE: January 17, 2025
    JOURNAL RESTRICTED ACCESS
    A mirage is an atmospheric optical phenomenon caused by the refraction of light due to differences in air density. It is known that the density difference between water and aqueous solutions such as sugar water or salt water can be used to reproduce the same situation as when a mirage occurs. In this paper, we propose an artificial mirage teaching material using gelatin. We also propose an artificial mirage using white LED light.
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