Abstract
Side corridor type classroom is one of popular layout in Japanese elementary schools. However recent learning/education style has many variations to promote creativity of students, the side corridor type one is not suitable for such requirements. Therefore open type classroom is applied in several schools to correspond various education styles. On the other hand, the open type one has a problem about noise from the next classroom through the open space and students cannot concentrate the lesson. This paper discusses the methods to relieve the sound problem based on the experimental data. In the experiments, the scale model is used to obtain basic data. The sound insulation between rooms and the sound absorption of walls of open space are examined with results of model experiments. The obtained data can be used to design acoustical environment in open type classrooms.
