A pilot project involving implementation and evaluation of the 4MAT curriculum system at secondary schools in Scarborough and North York (Ontario) is described. The 4MAT system is a curriculum delivery model developed by B. McCarthy that incorporates research by D. Kolb in the fields of learning styles and brain dominance. The model identifies four dominant learning styles, each assumed to be present in approximately 25% of the population. The model is graphically displayed as four quadrants with the axes representing two major functions that determine how each individual learns; specifically, the axes represent means of perceiving information (sensing and feeling versus thinking) and means of processing information (doing versus watching). The research performed for this study was designed to determine the effects of the 4MAT system on teachers' attitudes about differences in students' learning styles and students' and teachers' perceptions of the efficacy of the system. A total of 14 units of study based on the 4MAT model were developed, and six were retained for use in this study. Teacher and student questionnaires and teacher follow-up interviews were used upon completion of the unit to determine curriculum effects on 31 teachers and 572 students involved in the study. Results indicate that the system was received well by both students and teachers. The 4MAT Research Project Teacher Interview Schedule, Teacher Survey, and Student Survey are included; and summaries of the responses are provided. (TJH)