It is noted that with the prominence of computers in today's technological society, digital communication systems have become widely used in a variety of applications. Some of the problems that arise in digital communications systems are described. This unit presents the problem of correcting errors in such systems. Error correcting codes are…

Describes a packet of instructional forms to guide students' reflections on their collaborative writing group's process and progress. Reports that student self-reports at the end of the project reveal that group satisfaction did increase and that those groups that used the forms regularly found them useful. (RS)