These units of instructional materials and teaching aids are part of a series of eight designed for use in rural agriculture programs for students in grades 9 and 10. Covered in the unit on livestock science are understanding the livestock industry, identifying breeds of livestock and poultry, selecting livestock, and feeding livestock. Identifying crop and weed seeds, judging the quality of grain for seed and for market, growing corn, and growing soybeans are discussed in the unit on crop science. Each of these units or problem area packets includes some or all of the following components: suggestions to the teacher, a content outline, a teacher's guide, information sheets, student worksheets, assignment sheets and keys, demonstrations, job sheets, transparencies, a discussion for the transparencies, and sample test questions and a teacher's key. (The remaining units are available separately--see note.) (MN)