Hi Ann,
Good comments about instructional styles. Sometimes instructors become so focused on content they forget delivery. They are going to deliver content in the only way they know, which often times is the method through which they were taught. They don't stop and think about alternative ways of delivering the content, that will not only keep the students interested but will keep them interested as well.
By talking with other instructors, reading professional literature, and observing master instructors new instructors can develop a knowledge base from which they can select a number of different ways they can present their course content.
Experience has shown that teaching evening classes are real challenges for instructors as the students are tired, ready to be home, and are in many cases not motivated beyond being physically in class. An instructor that can meet the needs of these students is one that has really worked hard to refine an instructional style that works for them and their students.
Gary