Hi Patricia, You are not really sending mixed messages with this approach. I have much of the same approach so I understand what you are saying. The requirements outlined in the syllabus are fixed. I make announcements based upon upcoming assignment deadlines and quizzes at the beginning of every class. I ask for any questions so we are clear. I am very formal during this time and then I move into our lecture, group work, etc.. It is at this time I can assume a more relaxed delivery. They know that they need to listen and for and when to relax a bit and become involved with the lecture. Gary