A package of microcomputer software was developed to allow architectural design students to understand the acoustical ramifications of their design decisions. The package consists of a series of programs and instructional booklets to take architectural students (who typically have a very limited background in both acoustical and computers) step by step through the acoustical analysis of small-scale physical models using ultrasonic impulsive testing methods. Students build small-scale chipboard study models of a proposed auditorium design. The software package helps to lead them through the acoustical analysis of the design. Both graphic and tabular output of many objective acoustical design criteria are printed. Students optimize their schemes after several iterations are performed. The program was developed to be a computer-based worksheet so that the student could actually see the operations being performed by the computer. A minimal amount of computer experience (turning the machine on and off and inserting a disk) is required to operate the package. Comparisons between basic architectural design typologies (fan-shaped versus rectangular) of auditoria, the use of concert shells, and the configuration of the acoustical enclosure of the room can all be quickly evaluated by the students in model form. [Funded by NSF.]