Students of science teacher training course have knowledge about classification method of igneous rocks, intrusive rocks and faults already, however many students can't identify rocks and can't classify a fault as joints at the outcrops. As many geological phenomenons show many varieties, it's necessary to learn earth science with field observation as well as textbooks. In order to develop a new field observation program focusing on getting view point of igneous rocks and fracture system, we have chosen the Motoujina area in Hiroshima City as a most suitable site and we have conducted field study for those students.