R.M. Felder and L.K. Silverman, “Learning and Teaching Styles in Engineering Education,” Engr. Education, 78(7), 674-681 (1988). The article that originally defined the Felder-Silverman model and identified teaching practices that should meet the needs of students with the full spectrum of styles. The paper is preceded by a 2002 preface that states and explains changes in the model that have been made since 1988