Community Educatipn Curriculum for Commoditization of the Specific and the Shared Spaces : Focusing on the Practice of Living Environment Studies at Tajima Elementary School in Kawasaki City, Japan(New Historical Research Methods for Social Studies Education: Community Education,<Special Issue>The Project Report to Commemorate the 60th Anniversary of Establishment of Social Studies Education:The Quest for Schematization and New Methodologies of the Historical Research in Social Studies Education)