The use of interactive computer graphics for individualized and classroom instruction in Engineering at the University of Texas is described in this document. Two modes of instruction are discussed: (1) student individualized instruction at the terminal, and (2) classroom (group) instruction by a lecturer using time-sharing techniques. The use of a proposed device called a real-time, plotter-projector for group display is discussed, together with data on its cost and the cost effectiveness of the equipment for classroom and laboratory instruction. A list of the equipment needed for a classroom, and a photograph of the plotter-projector is included. (Author/DS)