We could use a large rug or carpet piece to help absorb noise. Our classroom was built back in the days when children sat silently while a teacher lectured. Today, we strive for more of an inquiry approach.
Children often work in cooperative groups, with more than one adult assisting.
Without acoustical tile, the sound of many eager voices bounces off the high ceiling and the tile floor, and the din can be deafening, as well as a setback to concentration and attention.