A microcomputer-based instruction delivery system for elementary schools is recommended as a way to reduce class size at little increased cost, to increase contact time with students, to reduce idle time, and to develop information on individual student progress and problems. (Author/MT)

This report summarizes research on the impacts of alternative early intervention programs to prevent school failure. Also considered are the magnitude of estimates of program effects and policy implications of using the programs. The nine principal types of early schooling programs reviewed are those involving: (1) substantial reductions in class…