AbstractThe engineering goal (EG1) was to measure the sound intensity and reflection coefficients of materials inside an acoustically designed classroom (choir room), assisted by a custom impedance apparatus and modeled by two and three dimensional models. The second engineering goal (EG2) was to use the data produced by the custom impedance apparatus to accurately model the classroom two and three dimensionally. The data was modelled on a two dimensional model (MASENV) and a three dimensional model (EASE). The third engineering goal (EG3) was to use the accurate two and three dimensional models, in order to recommend improvements for acoustically deficient rooms (art rooms). It is important to evaluate the decibel levels in classrooms using theoretical applications and experimental work to determine the sound quality and reflectivity of materials to maximize sound performance. To collect data, ten readings were taken using a decibel meter at ten different locations at seating elevation within both of the target rooms. Data from the impedance apparatuses was used to model the rooms. Then, predictions from the model were compared with the collected decibel meter readings to determine the accuracy of the models. Results Pending.