We use Green Map for Environmental Educational tool at Shimata Public Elementary School in Hikari city located in Yamaguchi prefecture, which is the southern part of the main land in Japan(Honshu). Its population is 55thousand and Area is 92 square km, is surrounded by beautiful landscape of Seto inland sea and mountains such as “Murozumi” beach that is famous for blue pines on white sand and “Iwakisan”mountain. ”Shimata Elementary School” is located on the east side of “Shimata” river of which area is rather residential than agriculture. There are a few manufactures like “Takeda Chemical” and “Nippon Steel Corporation”by the river.