The ease of authoring new computer materials for micros and pre-programed menu-driven systems, which allows classroom instructors to design programs directly related to classroom objectives and activities, has helped to alleviate the problems of software shortage for computer assisted instruction (CAI) in reading. One college instructor has developed a program for remedial reading students focusing on mastery of 20 commonly used Latin and Greek morphemes that were a roadblock to the students' vocabulary development. In developing the program, the instructor found several suggestions helpful for teachers interested in composing their own programs: (1) choose a system that is user and author friendly; (2) write out clearly defined objectives, and include remediation and feedback before writing the program; (3) when developing multiple choice test questions, leave "I don't know" as an option; (4) avoid degrading comments when writing feedback; (5) create a personal voice in the program; (6) write with the student audience in mind, and do not crowd the screen; (7) develop a corresponding test of no more than 20 items for each lesson; (8) provide developmental levels of instruction within the program to accommodate different levels of learners; (9) schedule a training day for student users so that they may learn to use the system independently; and (10) integrate the program into the total curriculum. (HOD)