One of my teachers is trying a new teaching methodology. We do the reading and watch a lecture on youtube before we go to class. Then we spend class time doing presentations, writing assignments, taking quizzes and having discussions. This way we can stop and rewind the lecture as needed and the professor can see how well we are understanding the material while there is still time to prepare for test day. It's a great philosophy. The problem? He hasn't posted the videos for today or Monday yet!! How are we supposed to do our homework when we don't have the link!?