This report describes activities of the PLATO Education Group (PEG), the educational research and development arm of the Computer-based Education Research Laboratory (CERL) at the University of Illinois at Urbana-Champaign. Staff, funding sources, and an overview are presented for the four projects summarized, along with additional, project-specific information. A description of the PLATO Corrections Project (PCP)--which provides inmates of Illinois adult correctional facilities with access to basic skills instruction and to instruction in several vocational and a few advanced academic areas--discusses outreach, noteworthy features and problems, curriculum development (reading, language, and mathematics), the SYS IV instructional management system, PCP instructional design research, and future plans. Qualitative interpretation of graphs for students of basic sciences and prototype microcomputer courseware for teaching high school algebra are subtopics in a description of the PLATO Mathematics Project, which is involved in courseware research, development, implementation, and evaluation in basic mathematics. Additional projects summarized are the Continuing Study of the Use of Computers in Mathematics Instruction, and the Handicap Technology Program. References are listed for each project summary. (LMM)