This guide was developed for script writers on the Radio Language Arts Project, which was designed to develop, implement, and test the effectiveness of an instructional radio system to teach English as a second language at the primary school level in Kenya. The project was planned to produce a radio-based, English language program with approximately 195 taped 30-minute lessons for each school year, appropriate tests, teacher orientation materials, and classroom observation and data-gathering procedures. The following specific topics are addressed: writing for instructional media; radio as an instructional medium; listening; sound effects; the classroom teacher; writing stories for children; animal characteristics; writing instructional programs for children; purpose and objectives; evaluation; modeling; reinforcement; the program format; writing the program segments; and script check list. Script format is described including segment headers, special script instructions, script punctuation, script cover sheet, and review. The script for lesson 76 from the first year broadcast is included. (LMM)