Hi Angelina: This sound like a good way to start a class. Instructional back up plans are activities that can be initiated on relatively short notice, are applicable to the course or topic, and do not require much preparation or technology to use in the class. These are activitis that are for whatever you hadve planned for the day cannot occur for whatever reason. Meaningful back-up or alternative lessons assure the student's time won't be wasted, and at least they're be some productive time used during class. Regards, Barry