Examples of field trips include a visit of a few minutes into the schoolyard to observe a tree , a trek across the street to see construction work , or a longer trip of several days to tour historical locations. Popular field trip sites include zoos, museums, public buildings , and parks. The school media specialist can increase the chances for a successful field trip experience by maintaining a local resource file listing possible sites to visit . Usually the file includes the names , address, and phone numbers of people to contact. A good resource resource file will also include file will also include notes regarding the value of previous trips, Some district media centers and