Inside a cooking room at junior and senior high schools, noise during practice hours is very loud. For the purpose of making teaching more effective, the actual condition was examined. Namely, the following items in the room were measured : noise level, frequency analysis and record by high speed level recorder of total noise and special noise occurring from each cooking method, respectively. Average loudness level of the noise is 70 phones. Sound power carried by a band of frequencies 500〜1,000 cycle/sec is the most intensive, and this is most sensitive to the ear. An arrangement of absorbing some noises from which 5dB of noise power would be decreased is discussed.
