Development and Effects of Experimental Teaching Materials for Optical Communication Using LED Light and Convex Lens : A Focus on First-grade Lower Secondary School 'Light and Sound'
Autor: | Masahiro, OHTANI, Yoshihiro, OGAWA, Takayuki, YAMADA |
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Jazyk: | japonština |
Rok vydání: | 2021 |
Předmět: | |
Zdroj: | 上越教育大学研究紀要 = Bulletin of Joetsu University of Education. 40(2):603-613 |
ISSN: | 2435-9629 |
Databáze: | OpenAIRE |
Externí odkaz: |