A school or classroom’s purpose is to create an environment of learning. This is obvious but sometimes overlooked by interior designers. The looks of a classroom are important, but the acoustics of a classroom should be higher on the priority list.
In independent tests it has been shown that students perform/learn poorly in highly reverberant spaces. This is due to poor speech intelligibility.
Noise ingress and egress is also an issue and steps must be taken to provide a quiet and focused environment. Learning is much like the creative process which requires a distraction-free environment. This is particularly true for children and young adults, who often exhibit less-than-optimal attention spans.
Good acoustics in the classroom will result in optimal test scores.