Hi Elizabeth: I'm a big believer in expectations. I think most people generally want to do the best they can (please excuse the occassional slackers) if they are given the opportunity and resources, along with patient instructions and the learning environment that facilitates their success. So, conveying expecatation is very important to me in terms of demonstrating preparation. It takes time, effort, and planning to produce a well run, smooth classroom experience. Students notice when that's not the case - and when it is! Regards, Barry