The primary purpose of this study was to identify the subject matter units taught, ascertain the length of time allotted to teaching of the subject matter units, and ascertain the extent of contribution made by categories of subject matter toward attaining national objectives of vocational agriculture in Wisconsin. The study also included a description of selected personal characteristics of agricultural instructors and selected environmental background conditions under which instructors teach. Data were obtained from a sample of vocational agriculture teachers by a mail questionnaire containing 131 subject matter units. Findings show that almost 85 percent of the teachers' instructional time was allotted to teaching animal science, farm business management, agricultural mechanics, plant science, and soil science. These subject matter categories contributed at a major level toward attaining the production agriculture competency objective and at a secondary level toward attaining the agricultural related occupations competency objective. (Author/GB)