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
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