An instructor's manual and student activity guide on the ignition system of small engines are provided in this set of prevocational education materials which focuses on the vocational area of trade and industry. (This set of materials is one of ninety-two prevocational education sets arranged around a cluster of seven vocational offerings: agriculture, home economics, distributive education, health occupations, world of work, trade and industry, and office occupations.) The instructor's guide is organized into the following elements: title of activity, duration of activity (five to ten days), activity goals, instructional objectives (five), related vocational clusters, and activity implementation (description, materials needed, safety considerations, teacher preparation prior to class, during the class, follow-up activities, answer keys to student check point activities, and masters for duplication [e.g., check sheets--identification of tools and parts of the ignition system]). The student activity guide (for working on the ignition system of a small engine) provides step-by-step instructions (narrative and illustrations) for completing each instructional objective. At the end of each set of instructions is a student check point (evaluation activity). Occupational descriptions for an automobile mechanic, automobile mechanic helper, and automobile service station attendant conclude the document. (JH)