Hi Marta: You’re right; most of the commentary does address the inevitable problem of some unplanned event disrupting the daily lesson. You'd have to admit having the power go out, not having a computer/LCD projector for a PPT, overhead projector bulb burring out, and hundreds of similar kinds of situations fit into the category of having a backup plan. I once had a 4X8 dry erase board fall off the wall at one end. For about two hours, I just used the board in its lopsided position until a portable board could be located. I feel I saved two hours rather than taking time away due to the unusual distraction. You’ve stated a very meaningful point which addresses the larger challenge of developing curriculum that is dynamic and fluid allowing for an on-course change in plans that is reactive to a set of circumstances and still meets the student learning outcomes. This approach takes a lot of time, preferably by multiple decision makers, and feedback discussions and post-course analysis to determine effectiveness. Unfortunately, not all institutions allow the latitude of their instructors to be involved in curriculum design to the degree I’ve described. Nevertheless, the benefit to the students is immeasurable when progressive plans such as describe are conceived and implemented. Regards, Barry