It is generally known that in educational settings, excessive noise masks what the teacher is saying; thus, and for maximum learning to occur, the teacher's voice must be highly intelligible to all children (Crandell, Smaldino, & Flexer, 1995). The difference between what the teacher is saying (signal) and the classroom noise level is commonly…

Purpose: The focus of this research effort was to examine the effect of a sound-field amplification system on managerial time in the beginning of class in a physical education setting. Method: A multiple baseline design across participants was used to measure change in the managerial time of 2 middle school female physical education teachers using…