Describes two occasions where television has been used to record a series of tutorials in mathematics and earth science to improve the performance of those conducting the tutorials. The opportunity for playback, analysis, and discussion with colleagues was especially valuable. (Author)

Describes the audiotutorial program in earth science at St. Petersburg Junior College's Clearwater Campus started ten years ago. Although initial expenses were considered high, they are now equivalent to those of traditional delivery systems, and students come away with better grades and more positive attitudes. (Author/JN)

To achieve economy in the teaching of earth sciences, an audiovisual-tutorial program was designed in the pattern of a simulated field trip. Twelve weekly exercises combining slides, filmstrips, and audiotapes were produced and tested on an experimental group of 50 students, who also received one lecture a week. The program was evaluated and…