Hi William:
Good perspective about field trips and guest speakers.
I think most students get a lot out of field trips. It's different from the daily class routine. Most importantly, sometimes what a student views or learns from a well planned field trip can be tremendously motivational, enough to even get them to work harder in school.Of course, they may also realize "this is not for me".
As a gust speaker, it's a bit more personal, but the benefit of being able to ask just about any questions is a novel learning activity and I've found students usually like these… >>>