This case study explored the impacts of school shootings on K-12 school principals. Eleven school principals and assistant principals from rural, suburban, and urban areas in all regions of the United States were interviewed. The study answered two research questions: What impact do school shootings have on school principals? and What do…

Background: The vocal demand on teachers may predispose them to vocal difficulties. This concern is exacerbated by unfavourable classroom acoustics and a large number of learners in a classroom in developing countries such as South Africa. There is a dearth of classroom acoustic protocols in South Africa, which intensifies the effect of noise on…