The Technical Assistance Development System (TADS) has developed through the years a system for technical assistance and has identified some important principles that should be followed in the operation of organizational support systems. (Author/ER)

This article concerns some economic concepts which shed light upon the effective and efficient use of information processing facilities" and suggests that centralized computing facilities can produce higher quality outputs than smaller organizations. (Author/AA)

In the study reported, the relative degree of diversity of techniques employed in sequencing classroom work flow was compared among 166 teachers from four public secondary schools. (Author)

Describes examples of outstanding videodiscs, summarizes evidence on effectiveness of videodisc as a teaching tool, and discusses factors associated with design of effective videodisc for instruction. Such factors include interactivity, visual design, organization, active participation, metaphors and models, personality, and a team approach. (MBR)

Discusses cognitive processes readers engage in when comprehending instructional text and identifies familiar devices utilized by authors of instructional materials to support each of these processes. Included are appropriate vocabulary and sentence syntax use for intended audience; listing instructional objectives; and use of hierarchical…