This publication is designed to provide a core of instruction for the many different fields in agricultural/horticultural education. This course contains 21 instructional units that cover the following topics: introduction to horticulture; beginning a career in horticulture; hand and power tools; introduction to safety; growing facilities; greenhouse watering; plant growth and responses; introduction to floral design; introduction to deciduous plants; chemical safety; introduction to plant growth media; elementary study of soils; introduction to fertilizers; plant propagation; introduction to indoor plants; repotting greenhouse and indoor plants; introduction to evergreens; introduction to transplanting; introduction to pruning; introduction to fruits and vegetables; and introduction to garden flowers. Each instructional unit follows a standard format that includes some or all of these basic components: performance objectives, suggested activities for teachers and students, information sheets, supplements, transparency masters, activity sheets, assignment sheets, job sheets, practical tests, written tests, and answers to assignment sheets, activity sheets, and written tests. Units are illustrated with drawings and photographs. (KC)