- 61 - centers, portable equipment may be made available where it can be used to advantage for demonstration purposes. Current expenses for instruction involving consumable supplies, janitorial services, lights, heat, and other supplies of a general nature shall be provided, insofar as possible, through public school funds. Teaching materials shall be provided from public school funds. These may include source materials such as books, magazines, bulletins, pamphlets, and brochures; illus- trative materials; films, filmstrips, and slides; demon- stration facilities; field trips, and other devices and materials which serve as instructional aids. A minimum average attendance of 10 is necessary for an evening school class in home econoinics to be fully reim- bursed by state or federal funds for vocational education. Reimbursement on a lesser number will be prorated. Time compensation should be provided for required home visitation, project supervision, and for the promotion and organization of homemaking programs for adult groups beyond the eight-hour school day. Two kinds of programs may be organized for adults the evening school program and the part-time program. 2.3 Qualifications of Teachers for In-School Groups. 2.31 Home Economics Teachers. 2.31-1 Professional and Technical Preparation in Home Economics Education. Teachers in vocational programs shall possess a bachelor's degree in home economics from a standard college or university meeting the requirements for prepa- ration of vocational teachers as prescribed by the State Board for Vocational Education, and they shall meet the certification requirements prescribed by the State Board of Education. 2.32 Home Economics Teachers Returning to Teaching After an Absence of Ten or More Years. These qualifications are the same as the regular certification requirements for teachers of other areas. 2.33 Teachers for Child Development Laboratory in the Home Economics Program.