(c) Specifically with respect to recreational and athletic activities, they shall be offered to all students without regard to sex. Schools may provide separate teams for each sex. Schools which provide the following shall do so with no disparities based on sex: Equipment and supplies; medical care; services and insurance; transportation and per diem allowances; opportunities to receive coaching and instruction; laundry services; assignment of game officials; opportunities for competition, publicity and awards; scheduling of games and practice times including use of courts, gyms, and pools: PROVIDED, That such scheduling of games and practice times shall be determined by local administrative authorities after consideration of the public and student interest in attending and participating in various recreational and athletic activities. Each school which provides showers, toilets, or training room facilities for athletic purposes shall provide comparable facilities for both sexes. Such facilities may be provided either as separate facilities or shall be scheduled and used separately by each sex. The superintendent of public instruction shall also be required to develop a student survey to distribute every three years to each local school district in the state to determine student interest for male/female participation in specific sports.