Business Math
Dr. Robert A. Schultheis has been a high school teacher, a university teacher educator, and a univeristy management information systems faculty member specializing in networking. He is the coauthor of textbooks in both high school business education and college-level information systems. He has retired from Southern Illinois University at Edwardsville but continues to write, consult organizations on information system matters, and maintain web sites for organizations.Raymond M. Kaczmarski has been involved with business education throughout his career as a high school teacher, a district-wide curriculum administrator, and a university teacher-educator. Although he has retired from the Detroit Public Schools, his interest in education continues through his writing, working with student vocational organizations, and consulting on career-technical education issues.