This is a script that was designed for a set of mediated materials intended to introduce the concepts which are basic to competency-based teacher education (CBTE). The materials consist of 115 35mm slides, a 22-minute cassette audio tape, and this script. Each page contains two columns: one for visual descriptions, the other for audio. The audio description defines knowledge, product, and performance criteria; compares competency-based programs to traditional programs; defines instructional and expressive objectives; and describes the use of instructional modules. Finally, the audio stresses the advantages of the field-based component of CBTE as opposed to traditional programs. (JA)