This instructor guide and the corresponding student reference contain 10 lessons to enhance an Agricultural Science I course for grade 9. The lessons cover the following topics: introduction, psychology and handling, conformation and selection, genetics and reproduction, herd health, hoof care, nutrition, equipment and facilities, handling horses, and career opportunities. The instructor's guide contains the following: objectives, competencies, a teaching calendar, 23 references and resources, and a student competency profile, In the instructor's guide, each lesson includes an introduction, objective, study questions, references, teaching procedures, and an evaluation with answer key. Transparency masters, assignment sheets, and activity sheets are included as appropriate. The student reference consists of information sheets and illustrations for the lessons. (KC)