Exactly. However, evolution is fact in that it has been observed (organisms changing over generations) and theory(s) in that researchers have postulated a series of mecahanisms to explain these changes. Biology classes should explain the first before tackling the second. They don't however, and the student is left with just enough information to pass his mid-term, but without enough information to really understand what is going on.
hog-wash...evolution has never been observed. Pictures and wild speculation does not equate to truth.