Most teachers have a class that they'd like to forget or redo and teach 'right' the second time.
Still, when reflecting on our own 'learning experiences,' sometimes the biggest challenges turn into our best successes. I knew that selling the idea of writing every day to my psychology students one summer was going to be skiing uphill on glare ice. From what I've observed, too many students give up way too quickly when they encounter problems in academic projects that require intense focus. Writing is also a solitary activity and puts sole pressure, responsibility, or credit on the individual writer. For some students, that's intimidating.