This book is a collection of more than 80 instructional units designed to help educators develop, modify, and expand their agricultural education curriculum in middle school, junior high, and high school. These units, developed and field tested by Wisconsin agriculture educators, expand upon the curriculum model presented in the Wisconsin Department of Public Instruction's guide. The units are based on the following seven employment clusters: (1) agriculture science/production management; (2) agriculture processing/food and fiber; (3) agriculture marketing/distribution and retailing services; (4) agriculture supplies and services; (5) agriculture mechanization/engineering and technical support services; (6) agriculture resources management; and (7) professional employment in agriculture. Units consist of a short description, time estimate, objectives, competencies, subject matter, and lists of motivational activities, learning activities, instructional materials, and equipment and facilities. In addition, the guide offers several instructional units under a "cross-cluster" category--applicable to two or more of the employment clusters. The guide also shows how the employment clusters fit into Wisconsin's curriculum for various areas of agriculture education. Appendices include names and addresses of publishers of instructional resources and a 12-page bibliography of agricultural periodicals. (KC)