An instructor's manual and student activity guide on forestry are provided in this set of prevocational education materials which focuses on the vocational area of agriculture. (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 includes the following elements: title of activity, duration of activity (five to nine periods), activity goals, ten instructional objectives for two occupational areas (forester aide and forest supervisor), related vocational clusters, and activity implementation (description, materials needed, safety considerations, teacher preparation prior to class, during the class, follow-up activities, and masters for duplication). The student activity guide provides step-by-step instructions (narrative and illustrations) for completing each instructional objective (e.g., use a cruise stick to determine tree height, supervise as other students estimate tree diameters). At the end of each set of instructions is a student check point (evaluation activity). Nine occupational descriptions (e.g., fire ranger, forest nursery supervisor, forester aide) conclude the document. (JH)