2020 No https://doi.org/10.1159/000503231 Pirilä, Sirpa Europe Experimental Students Teachers Elementary (K-5) Noise Hearing Stress/Anxiety Job satisfaction Teacher Voice Voice symptoms Activity noise Acoustics Noise control Classrooms Workshop In two Finnish elementary classrooms, teachers with voice symptoms and their students participated in an acoustic and behavioral noise intervention. Post-intervention surveys showed reduced vocal symptoms and noise annoyance, highlighting the role of acoustics and noise awareness in improving classroom communication.