This study investigated the evaluation of ‘impression’ and sound environment for open plan type classrooms by elementary school children and teachers. From the results, it has been found that the children and teachers have good impressions for open-plan type classrooms. From evaluation of teachers, there was indication that an area around a desk of a child was narrow. From the evaluation of children, we understand that good ventilation, moderate brightness, sufficient space and adequate room temperature were important elements for classroom environment. In cases of schools, which were designed in consideration for acoustical environmental benefit, there were no effective evaluation given by children even though the acoustic characteristics improved. The challenge for the future design of open-plan classroom in elementary school is the realization of open-plan spaces with visual connections that retain the good impressions with high level of acoustic environment.
