- 32 - 2.62-1 Preparation. Special teachers will be employed to teach adult vocational agriculture classes. The individual acting as the teacher shall have at least completed high school and be a recognized authority in his vocation. Before a special teacher is approved for a class, he must be appropriately certified. 2.62-2 Experience in Farming or in Related Specialized Fields. A person selected as a special teacher must have had at least three years of recent and practical experience in the occupational area in which instruction is to be given. In most cases the instruction will be in the nature of skills. Examples include areas such as electric or acetylene welding where students desire to construct or repair farm machinery, the pro- cessing of food, the construction of terraces, the draining of land, the installation of irrigation systems, the operation of farm machinery, the installation and maintenance of farm plumbing systems, and the construction of farm buildings. The follow-up or on-the-farm instruction will be given by a regular teacher of agriculture. 2.7 Facilities. The county board of public instruction, where voca- tional agriculture units are approved, is responsible for pro- viding minimum approved facilities for each department. In addition, the following shall be included: 2.71 Classrooms. A classroom of minimum size to meet state requirements, but sufficiently large to accommo- date the largest vocational agriculture class in the school, should be provided and it should be equipped with tables, chairs, and storage facilities. 2.72 Office. An office of sufficient size to accommodate the office furniture and equipment necessary for the teacher should be provided. 2.73 Farm Mechanics Shop. A minimum of 100 square feet of work area per student for the largest class should be provided. Part of this area may include a designated outside work area. The farm mechanics shop should be properly equipped to meet the needs of the students enrolled. An annual budget should be provided to purchase