2021 No https://doi-org.ezproxy2.library.colostate.edu/10.1177/00315125211005935 Lamotte, Anne-Sophie Europe Review Students Elementary (K-5) Middle/Jr High (6-8) High School (9-12) Noise Cognative function Teaching Talking Intelligibility Behavior Learning environment This systematic review followed PRISMA guidelines to assess effects of classroom chatter on comprehension. Analysis of 9 experimental studies showed consistent negative impacts, especially for younger students. Findings support noise mitigation to enhance academic performance.