The high percentage of high school pre-algebra students having difficulty learning the abstract concept of graphing ordered pairs on the Cartesian rectangular coordinate system was addressed by the creation and implementation of a computer-managed instructional program. Modules consisted of a pretest, instruction, two practice sessions, and a posttest. To increase motivation and thereby enhance learning, the practice modules were designed in the form of a game. Included are the purpose, research and solution strategy, method, results, and recommendations. Appended are sample tests, student data, user and programming documentation, and flowcharts. (Author/KR)