It is important that students, whether working as a class or in small groups, have proper supervision. We recommend one adult accompany every 12 to 15 students. All chaperones should clearly understand their disciplinary duties and stay with the students during the field trip. It costs to provide these programs, but because of the 1/8-cent Conservation Tax we are able to provide most of our educational programs at no charge. In locations where there is a small fee, chaperones are admitted at the discounted school group rate (teachers are admitted free).