Computer-managed instruction (CMI) links the many components of an educational system through direct use of the computer to support the instructional process and the environment of both learners and teachers. CMI can control learner needs, narrow the instructional focus, support the teaching process, and improve instructional evaluation. Offenders are assessed and individual educational instruction plans (IEIP's) are developed accordingly. The IEIP determines the offender's basic skill levels and lists learning objectives. Characteristics of inmates in Chicago's Cook County Jail who are involved in CMI are described, as well as a tutorial program of intensive review to provide basic reading and math skills to adults with limited educational backgrounds. The progress of 28 offender students is being monitored to evaluate the benefits of CMI. Preliminary findings indicate that students have made significant gains in mathematics and/or reading with CMI and the intensive tutorial program. 5 references, 6 figures, and 1 footnote